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itemprop="position" content="1"></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Managing Cluster</span><meta itemprop="position" content="2"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Load Balancing</span><meta itemprop="position" content="3"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Load Balancing</h1></header><h1>load balancing</h1><p>When deploying multiple FE nodes, users can deploy a load balancing layer on top of multiple FEs to achieve high availability of Doris.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="code-method">Code method<a href="#code-method" class="hash-link" aria-label="Direct link to Code method" title="Direct link to Code method">​</a></h2><p>Retry and load balance yourself in the application layer code. For example, if a connection is found to be down, it will automatically retry on other connections. Application layer code retry requires the application to configure multiple doris front-end node addresses.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="jdbc-connector">JDBC Connector<a href="#jdbc-connector" class="hash-link" aria-label="Direct link to JDBC Connector" title="Direct link to JDBC Connector">​</a></h2><p>If you use mysql jdbc connector to connect to Doris, you can use jdbc&#x27;s automatic retry mechanism:</p><div class="language-text codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">jdbc:mysql:loadbalance://[host:port],[host:port].../[database][?propertyName1][=propertyValue1][&amp;propertyName2][=propertyValue</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>For details, please refer to <a href="https://dev.mysql.com/doc/connector-j/5.1/en/connector-j-usagenotes-j2ee-concepts-managing-load-balanced-connections.html" target="_blank" rel="noopener noreferrer">Mysql official website document</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="proxysql-method">ProxySQL method<a href="#proxysql-method" class="hash-link" aria-label="Direct link to ProxySQL method" title="Direct link to ProxySQL method">​</a></h2><p>ProxySQL is a flexible and powerful MySQL proxy layer. It is a MySQL middleware that can be actually used in a production environment. It can realize read-write separation, support Query routing function, support dynamic designation of a certain SQL for cache, support dynamic loading configuration, failure Switching and some SQL filtering functions.</p><p>Doris&#x27;s FE process is responsible for receiving user connections and query requests. It itself is horizontally scalable and highly available, but it requires users to set up a proxy on multiple FEs to achieve automatic connection load balancing.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="install-proxysql-yum-way">Install ProxySQL (yum way)<a href="#install-proxysql-yum-way" class="hash-link" aria-label="Direct link to Install ProxySQL (yum way)" title="Direct link to Install ProxySQL (yum way)">​</a></h3><div class="language-shell codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-shell codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain"> Configure yum </span><span class="token builtin class-name" style="color:rgb(189, 147, 249)">source</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># vim /etc/yum.repos.d/proxysql.repo</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token plain">proxysql_repo</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token assign-left variable" style="color:rgb(189, 147, 249);font-style:italic">name</span><span class="token operator">=</span><span class="token plain"> ProxySQL YUM repository</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token assign-left variable" style="color:rgb(189, 147, 249);font-style:italic">baseurl</span><span class="token operator">=</span><span class="token plain">http://repo.proxysql.com/ProxySQL/proxysql-1.4.x/centos/</span><span class="token punctuation" style="color:rgb(248, 248, 242)">\</span><span class="token variable" style="color:rgb(189, 147, 249);font-style:italic">$releasever</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token assign-left variable" style="color:rgb(189, 147, 249);font-style:italic">gpgcheck</span><span class="token operator">=</span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token assign-left variable" style="color:rgb(189, 147, 249);font-style:italic">gpgkey</span><span class="token operator">=</span><span class="token plain">http://repo.proxysql.com/ProxySQL/repo_pub_key</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Perform installation</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># yum clean all</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># yum makecache</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># yum -y install proxysql</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">View version </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># proxysql --version</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">ProxySQL version </span><span class="token number">1.4</span><span class="token plain">.13-15-g69d4207, codename Truls</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Set up auto start</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># systemctl enable proxysql</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># systemctl start proxysql </span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># systemctl status proxysql</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">After startup, it will listen to two ports, the default is </span><span class="token number">6032</span><span class="token plain"> and </span><span class="token number">6033</span><span class="token plain">. Port </span><span class="token number">6032</span><span class="token plain"> is the management port of ProxySQL, and </span><span class="token number">6033</span><span class="token plain"> is the port </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">for</span><span class="token plain"> ProxySQL to provide external services </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">that is, the forwarding port connected to the real database of the forwarding backend</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain">.</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># netstat -tunlp</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Active Internet connections </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">only servers</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">tcp </span><span class="token number">0</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token number">0.0</span><span class="token plain">.0.0:6032 </span><span class="token number">0.0</span><span class="token plain">.0.0:* LISTEN </span><span class="token number">23940</span><span class="token plain">/proxysql </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">tcp </span><span class="token number">0</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token number">0.0</span><span class="token plain">.0.0:6033 </span><span class="token number">0.0</span><span class="token plain">.0.0:* LISTEN</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="proxysql-config">ProxySQL Config<a href="#proxysql-config" class="hash-link" aria-label="Direct link to ProxySQL Config" title="Direct link to ProxySQL Config">​</a></h3><p>ProxySQL has a configuration file <code>/etc/proxysql.cnf</code> and a configuration database file <code>/var/lib/proxysql/proxysql.db</code>. <strong>Special attention is needed here</strong>: If there is a <code>&quot;proxysql.db&quot;</code> file (under the <code>/var/lib/proxysql</code> directory), the ProxySQL service will only be read when it is started for the first time The <code>proxysql.cnf file</code> and parse it; after startup, the <code>proxysql.cnf</code> file will not be read! If you want the configuration in the proxysql.cnf file to take effect after restarting the proxysql service (that is, you want proxysql to read and parse the proxysql.cnf configuration file when it restarts), you need to delete <code>/var/lib/proxysql/proxysql first. db</code>database file, and then restart the proxysql service. This is equivalent to initializing the proxysql service, and a pure proxysql.db database file will be produced again (if proxysql related routing rules, etc. are configured before, it will be erased)</p><h4 class="anchor anchorWithStickyNavbar_LWe7" id="view-and-modify-configuration-files">View and modify configuration files<a href="#view-and-modify-configuration-files" class="hash-link" aria-label="Direct link to View and modify configuration files" title="Direct link to View and modify configuration files">​</a></h4><p>Here are mainly a few parameters, which have been commented out below, and you can modify them according to your needs</p><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-sql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token comment" style="color:rgb(98, 114, 164)"># egrep -v &quot;^#|^$&quot; /etc/proxysql.cnf</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">datadir</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&quot;/var/lib/proxysql&quot;</span><span class="token plain"> </span><span class="token comment" style="color:rgb(98, 114, 164)">#data dir</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">admin_variables</span><span class="token operator">=</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">{</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> admin_credentials</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&quot;admin:admin&quot;</span><span class="token plain"> </span><span class="token comment" style="color:rgb(98, 114, 164)">#User name and password for connecting to the management terminal</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> mysql_ifaces</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&quot;0.0.0.0:6032&quot;</span><span class="token plain"> </span><span class="token comment" style="color:rgb(98, 114, 164)">#Management port, used to connect to proxysql management database</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">}</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql_variables</span><span class="token operator">=</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">{</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> threads</span><span class="token operator">=</span><span class="token number">4</span><span class="token plain"> </span><span class="token comment" style="color:rgb(98, 114, 164)">#Specify the number of threads opened for the forwarding port</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> max_connections</span><span class="token operator">=</span><span class="token number">2048</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> default_query_delay</span><span class="token operator">=</span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> default_query_timeout</span><span class="token operator">=</span><span class="token number">36000000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> have_compress</span><span class="token operator">=</span><span class="token boolean">true</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> poll_timeout</span><span class="token operator">=</span><span class="token number">2000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> interfaces</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&quot;0.0.0.0:6033&quot;</span><span class="token plain"> </span><span class="token comment" style="color:rgb(98, 114, 164)">#Specify the forwarding port, used to connect to the back-end mysql database, which is equivalent to acting as a proxy</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> default_schema</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&quot;information_schema&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> stacksize</span><span class="token operator">=</span><span class="token number">1048576</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> server_version</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&quot;5.5.30&quot;</span><span class="token plain"> </span><span class="token comment" style="color:rgb(98, 114, 164)">#Specify the version of the backend mysql</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> connect_timeout_server</span><span class="token operator">=</span><span class="token number">3000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> monitor_username</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&quot;monitor&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> monitor_password</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&quot;monitor&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> monitor_history</span><span class="token operator">=</span><span class="token number">600000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> monitor_connect_interval</span><span class="token operator">=</span><span class="token number">60000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> monitor_ping_interval</span><span class="token operator">=</span><span class="token number">10000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> monitor_read_only_interval</span><span class="token operator">=</span><span class="token number">1500</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> monitor_read_only_timeout</span><span class="token operator">=</span><span class="token number">500</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> ping_interval_server_msec</span><span class="token operator">=</span><span class="token number">120000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> ping_timeout_server</span><span class="token operator">=</span><span class="token number">500</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> commands_stats</span><span class="token operator">=</span><span class="token boolean">true</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> sessions_sort</span><span class="token operator">=</span><span class="token boolean">true</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> connect_retries_on_failure</span><span class="token operator">=</span><span class="token number">10</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">}</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql_servers </span><span class="token operator">=</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql_users:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql_query_rules:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">scheduler</span><span class="token operator">=</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql_replication_hostgroups</span><span class="token operator">=</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h4 class="anchor anchorWithStickyNavbar_LWe7" id="connect-to-the-proxysql-management-port-test">Connect to the ProxySQL management port test<a href="#connect-to-the-proxysql-management-port-test" class="hash-link" aria-label="Direct link to Connect to the ProxySQL management port test" title="Direct link to Connect to the ProxySQL management port test">​</a></h4><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-sql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token comment" style="color:rgb(98, 114, 164)"># mysql -uadmin -padmin -P6032 -hdoris01</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">View</span><span class="token plain"> the global_variables </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> information </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> the main library </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">it </span><span class="token operator">is</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> this library </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">after</span><span class="token plain"> login </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">by</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">default</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">show</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">databases</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">-----+---------------+-------------------------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> seq </span><span class="token operator">|</span><span class="token plain"> name </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">file</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">-----+---------------+-------------------------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> main </span><span class="token operator">|</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">2</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">disk</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token operator">/</span><span class="token plain">var</span><span class="token operator">/</span><span class="token plain">lib</span><span class="token operator">/</span><span class="token plain">proxysql</span><span class="token operator">/</span><span class="token plain">proxysql</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain">db </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">3</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> stats </span><span class="token operator">|</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">4</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> monitor </span><span class="token operator">|</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">5</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> stats_history </span><span class="token operator">|</span><span class="token plain"> </span><span class="token operator">/</span><span class="token plain">var</span><span class="token operator">/</span><span class="token plain">lib</span><span class="token operator">/</span><span class="token plain">proxysql</span><span class="token operator">/</span><span class="token plain">proxysql_stats</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain">db </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">-----+---------------+-------------------------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">5</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">use</span><span class="token plain"> main</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Reading </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> information </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">for</span><span class="token plain"> completion </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> </span><span class="token operator">and</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">column</span><span class="token plain"> names</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">You can turn </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">off</span><span class="token plain"> this feature </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> get a quicker startup </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">with</span><span class="token plain"> </span><span class="token operator">-</span><span class="token plain">A</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Database</span><span class="token plain"> changed</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token plain">main</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">show</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">tables</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------------------------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">tables</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------------------------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> global_variables </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> mysql_collations </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> mysql_group_replication_hostgroups </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> mysql_query_rules </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> mysql_query_rules_fast_routing </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> mysql_replication_hostgroups </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> mysql_servers </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> mysql_users </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> proxysql_servers </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_checksums_values </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_global_variables </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_mysql_group_replication_hostgroups </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_mysql_query_rules </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_mysql_query_rules_fast_routing </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_mysql_replication_hostgroups </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_mysql_servers </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_mysql_users </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_proxysql_servers </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> runtime_scheduler </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> scheduler </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------------------------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">20</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h4 class="anchor anchorWithStickyNavbar_LWe7" id="proxysql-configuration-backend-doris-fe">ProxySQL configuration backend Doris FE<a href="#proxysql-configuration-backend-doris-fe" class="hash-link" aria-label="Direct link to ProxySQL configuration backend Doris FE" title="Direct link to ProxySQL configuration backend Doris FE">​</a></h4><p>Use the insert statement to add the host to the mysql_servers table, where: hostgroup_id is 10 for the write group, and 20 for the read group. We don&#x27;t need to read and write the license here, and it doesn&#x27;t matter which one can be set randomly.</p><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-sql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token plain">root</span><span class="token variable" style="color:rgb(189, 147, 249);font-style:italic">@mysql</span><span class="token operator">-</span><span class="token plain">proxy </span><span class="token operator">~</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token comment" style="color:rgb(98, 114, 164)"># mysql -uadmin -padmin -P6032 -h127.0.0.1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">insert</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">into</span><span class="token plain"> mysql_servers</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">hostgroup_id</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">hostname</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">port</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">values</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">10</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;192.168.9.211&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">9030</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">insert</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">into</span><span class="token plain"> mysql_servers</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">hostgroup_id</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">hostname</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">port</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">values</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">10</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;192.168.9.212&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">9030</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">insert</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">into</span><span class="token plain"> mysql_servers</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">hostgroup_id</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">hostname</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">port</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">values</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">10</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;192.168.9.213&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">9030</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">If</span><span class="token plain"> an error occurs during the insertion process:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">ERROR </span><span class="token number">1045</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token comment" style="color:rgb(98, 114, 164)">#2800): UNIQUE constraint failed: mysql_servers.hostgroup_id, mysql_servers.hostname, mysql_servers.port</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">It means that other configurations may have been defined before</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> you can clear this </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> </span><span class="token operator">or</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">delete</span><span class="token plain"> the configuration </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> the corresponding host</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">select</span><span class="token plain"> </span><span class="token operator">*</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">from</span><span class="token plain"> mysql_servers</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">delete</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">from</span><span class="token plain"> mysql_servers</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">6</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Check</span><span class="token plain"> whether these </span><span class="token number">3</span><span class="token plain"> nodes are inserted successfully </span><span class="token operator">and</span><span class="token plain"> their </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">status</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">select</span><span class="token plain"> </span><span class="token operator">*</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">from</span><span class="token plain"> mysql_servers\G</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"> </span><span class="token number">1.</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> </span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> hostgroup_id: </span><span class="token number">10</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> hostname: </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.211</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> port: </span><span class="token number">9030</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">status</span><span class="token plain">: ONLINE</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> weight: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> compression: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> max_connections: </span><span class="token number">1000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">max_replication_lag: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> use_ssl: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> max_latency_ms: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">comment</span><span class="token plain">:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"> </span><span class="token number">2.</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> </span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> hostgroup_id: </span><span class="token number">10</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> hostname: </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.212</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> port: </span><span class="token number">9030</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">status</span><span class="token plain">: ONLINE</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> weight: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> compression: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> max_connections: </span><span class="token number">1000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">max_replication_lag: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> use_ssl: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> max_latency_ms: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">comment</span><span class="token plain">:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"> </span><span class="token number">3.</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> </span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> hostgroup_id: </span><span class="token number">10</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> hostname: </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.213</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> port: </span><span class="token number">9030</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">status</span><span class="token plain">: ONLINE</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> weight: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> compression: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> max_connections: </span><span class="token number">1000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">max_replication_lag: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> use_ssl: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> max_latency_ms: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">comment</span><span class="token plain">:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">6</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">ERROR: </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">No</span><span class="token plain"> query specified</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">After</span><span class="token plain"> the above modification</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">load</span><span class="token plain"> it </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> RUNTIME </span><span class="token operator">and</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">save</span><span class="token plain"> it </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">disk</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"> The </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">following</span><span class="token plain"> two steps are very important</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> otherwise your configuration information will be gone </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">after</span><span class="token plain"> you </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">exit</span><span class="token plain"> </span><span class="token operator">and</span><span class="token plain"> must be saved</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">load</span><span class="token plain"> mysql servers </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> runtime</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.006</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">save</span><span class="token plain"> mysql servers </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">disk</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.348</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h4 class="anchor anchorWithStickyNavbar_LWe7" id="monitor-doris-fe-node-configuration">Monitor Doris FE node configuration<a href="#monitor-doris-fe-node-configuration" class="hash-link" aria-label="Direct link to Monitor Doris FE node configuration" title="Direct link to Monitor Doris FE node configuration">​</a></h4><p>After adding doris fe nodes, you also need to monitor these back-end nodes. For multiple FE high-availability load balancing environments on the backend, this is necessary because ProxySQL needs to be automatically adjusted by the read_only value of each node</p><p>Whether they belong to the read group or the write group.</p><p>First create a user name for monitoring on the back-end master main data node</p><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-sql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Execute</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">on</span><span class="token plain"> the node </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> the doris fe master master </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">database</span><span class="token plain">:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># mysql -P9030 -uroot -p </span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">create</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">user</span><span class="token plain"> monitor</span><span class="token variable" style="color:rgb(189, 147, 249);font-style:italic">@&#x27;192.168.9.%&#x27;</span><span class="token plain"> identified </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">by</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;P@ssword1!&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.03</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">grant</span><span class="token plain"> ADMIN_PRIV </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">on</span><span class="token plain"> </span><span class="token operator">*</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token operator">*</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> monitor</span><span class="token variable" style="color:rgb(189, 147, 249);font-style:italic">@&#x27;192.168.9.%&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.02</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Then</span><span class="token plain"> go back </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> the mysql</span><span class="token operator">-</span><span class="token plain">proxy proxy layer node </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> configure monitoring</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># mysql -uadmin -padmin -P6032 -h127.0.0.1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> mysql</span><span class="token operator">-</span><span class="token plain">monitor_username</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;monitor&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> mysql</span><span class="token operator">-</span><span class="token plain">monitor_password</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;P@ssword1!&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">After</span><span class="token plain"> modification</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">load</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> RUNTIME </span><span class="token operator">and</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">save</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">disk</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">load</span><span class="token plain"> mysql variables </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> runtime</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.001</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">save</span><span class="token plain"> mysql variables </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">disk</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">94</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.079</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Verify the monitoring results: The indicators </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> the ProxySQL monitoring module are stored </span><span class="token operator">in</span><span class="token plain"> the log </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> the monitor library</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">The </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">following</span><span class="token plain"> </span><span class="token operator">is</span><span class="token plain"> the monitoring </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> whether the connection </span><span class="token operator">is</span><span class="token plain"> normal </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">monitoring </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">connect</span><span class="token plain"> indicators</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain">:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Note: There may be many connect_errors</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> this </span><span class="token operator">is</span><span class="token plain"> because there </span><span class="token operator">is</span><span class="token plain"> an error </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">when</span><span class="token plain"> the monitoring information </span><span class="token operator">is</span><span class="token plain"> </span><span class="token operator">not</span><span class="token plain"> configured</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">After</span><span class="token plain"> the configuration</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">if</span><span class="token plain"> the result </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> connect_error </span><span class="token operator">is</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> it means normal</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">select</span><span class="token plain"> </span><span class="token operator">*</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">from</span><span class="token plain"> mysql_server_connect_log</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">---------------+------+------------------+-------------------------+---------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> hostname </span><span class="token operator">|</span><span class="token plain"> port </span><span class="token operator">|</span><span class="token plain"> time_start_us </span><span class="token operator">|</span><span class="token plain"> connect_success_time_us </span><span class="token operator">|</span><span class="token plain"> connect_error </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">---------------+------+------------------+-------------------------+---------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.211</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665195883957</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">762</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.212</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665195894099</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">399</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.213</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665195904266</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">483</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.211</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665255883715</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">824</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.212</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665255893942</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">656</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.211</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665495884125</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">615</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.212</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665495894254</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">441</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.213</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665495904479</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">638</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.211</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665512917846</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">487</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.212</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665512928071</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">994</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.213</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665512938268</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">613</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">---------------+------+------------------+-------------------------+---------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">20</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">The </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">following</span><span class="token plain"> </span><span class="token operator">is</span><span class="token plain"> the monitoring </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> heartbeat information </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">monitoring </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> ping indicators</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">select</span><span class="token plain"> </span><span class="token operator">*</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">from</span><span class="token plain"> mysql_server_ping_log</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">---------------+------+------------------+----------------------+------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> hostname </span><span class="token operator">|</span><span class="token plain"> port </span><span class="token operator">|</span><span class="token plain"> time_start_us </span><span class="token operator">|</span><span class="token plain"> ping_success_time_us </span><span class="token operator">|</span><span class="token plain"> ping_error </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">---------------+------+------------------+----------------------+------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.211</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665195883407</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">98</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.212</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665195885128</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">119</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.213</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665415889362</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">106</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.213</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1548665562898295</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">97</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">---------------+------+------------------+----------------------+------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">110</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.001</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">The read_only log </span><span class="token operator">is</span><span class="token plain"> also empty at this </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">time</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">normally</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">when</span><span class="token plain"> the new environment </span><span class="token operator">is</span><span class="token plain"> configured</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> this </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">read</span><span class="token operator">-</span><span class="token plain">only log </span><span class="token operator">is</span><span class="token plain"> empty</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">select</span><span class="token plain"> </span><span class="token operator">*</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">from</span><span class="token plain"> mysql_server_read_only_log</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Empty </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">All</span><span class="token plain"> </span><span class="token number">3</span><span class="token plain"> nodes are </span><span class="token operator">in</span><span class="token plain"> the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">group</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">with</span><span class="token plain"> hostgroup_id</span><span class="token operator">=</span><span class="token number">10.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Now</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">load</span><span class="token plain"> the modification </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> the mysql_replication_hostgroups </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> just now </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> RUNTIME </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> take effect</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">load</span><span class="token plain"> mysql servers </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> runtime</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.003</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">save</span><span class="token plain"> mysql servers </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">disk</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.361</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">select</span><span class="token plain"> hostgroup_id</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">hostname</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">port</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">status</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">weight </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">from</span><span class="token plain"> mysql_servers</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------+---------------+------+--------+--------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> hostgroup_id </span><span class="token operator">|</span><span class="token plain"> hostname </span><span class="token operator">|</span><span class="token plain"> port </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">status</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> weight </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------+---------------+------+--------+--------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">10</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.211</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> ONLINE </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">20</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.212</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> ONLINE </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">20</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">192.168</span><span class="token number">.9</span><span class="token number">.213</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">9030</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> ONLINE </span><span class="token operator">|</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------+---------------+------+--------+--------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">3</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h4 class="anchor anchorWithStickyNavbar_LWe7" id="configure-doris-users">Configure Doris users<a href="#configure-doris-users" class="hash-link" aria-label="Direct link to Configure Doris users" title="Direct link to Configure Doris users">​</a></h4><p>All the above configurations are about the back-end Doris FE node. Now you can configure the SQL statements, including: the user who sends the SQL statement, the routing rules of the SQL statement, the cache of the SQL query, the rewriting of the SQL statement, and so on.</p><p>This section is the user configuration used by the SQL request, such as the root user. This requires that we need to add relevant users to the back-end Doris FE node first. Here are examples of two user names root and doris.</p><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-sql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">First</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">execute</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">on</span><span class="token plain"> the Doris FE master master </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">database</span><span class="token plain"> node:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token comment" style="color:rgb(98, 114, 164)"># mysql -P9030 -uroot -p</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">create</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">user</span><span class="token plain"> doris</span><span class="token variable" style="color:rgb(189, 147, 249);font-style:italic">@&#x27;%&#x27;</span><span class="token plain"> identified </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">by</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;P@ssword1!&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> warning </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.04</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">grant</span><span class="token plain"> ADMIN_PRIV </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">on</span><span class="token plain"> </span><span class="token operator">*</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token operator">*</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> doris</span><span class="token variable" style="color:rgb(189, 147, 249);font-style:italic">@&#x27;%&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> warning </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.03</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Then</span><span class="token plain"> go back </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> the mysql</span><span class="token operator">-</span><span class="token plain">proxy proxy layer node</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> configure the mysql_users </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token operator">and</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">add</span><span class="token plain"> the two users just now </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">admin</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">insert</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">into</span><span class="token plain"> mysql_users</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">username</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">password</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">default_hostgroup</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">values</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;root&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">10</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.001</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">admin</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">insert</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">into</span><span class="token plain"> mysql_users</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">username</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">password</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain">default_hostgroup</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">values</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;doris&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;P@ssword1!&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">10</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">admin</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">load</span><span class="token plain"> mysql users </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> runtime</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.001</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">admin</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">save</span><span class="token plain"> mysql users </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">disk</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.108</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">The mysql_users </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> has many </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">fields</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"> The three main </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">fields</span><span class="token plain"> are username</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> password</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token operator">and</span><span class="token plain"> default_hostgroup:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token operator">-</span><span class="token plain">username: The username used </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">by</span><span class="token plain"> the front</span><span class="token operator">-</span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">end</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">connect</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> ProxySQL </span><span class="token operator">and</span><span class="token plain"> ProxySQL </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> route </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">SQL</span><span class="token plain"> statements </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> MySQL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token operator">-</span><span class="token plain">password: the password corresponding </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">user</span><span class="token plain"> name</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"> It can be a plain </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">text</span><span class="token plain"> password </span><span class="token operator">or</span><span class="token plain"> a </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">hash</span><span class="token plain"> password</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">If</span><span class="token plain"> you want </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">use</span><span class="token plain"> the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">hash</span><span class="token plain"> password</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> you can </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">execute</span><span class="token plain"> it </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">on</span><span class="token plain"> a MySQL node </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">first</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">select</span><span class="token plain"> password</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">PASSWORD</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token operator">and</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">then</span><span class="token plain"> copy the encryption result </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> this field</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token operator">-</span><span class="token plain">default_hostgroup: The </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">default</span><span class="token plain"> routing destination </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> the username</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">For</span><span class="token plain"> example</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">when</span><span class="token plain"> the field </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">value</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> the specified root </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">user</span><span class="token plain"> </span><span class="token operator">is</span><span class="token plain"> </span><span class="token number">10</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">SQL</span><span class="token plain"> statement sent </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">by</span><span class="token plain"> the root </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">user</span><span class="token plain"> </span><span class="token operator">is</span><span class="token plain"> used </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">by</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">default</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token operator">In</span><span class="token plain"> this </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">case</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> it will be routed </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> a node </span><span class="token operator">in</span><span class="token plain"> the hostgroup_id</span><span class="token operator">=</span><span class="token number">10</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">group</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">admin</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">select</span><span class="token plain"> </span><span class="token operator">*</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">from</span><span class="token plain"> mysql_users\G</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"> </span><span class="token number">1.</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> </span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> username: root</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> password: </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> active: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> use_ssl: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> default_hostgroup: </span><span class="token number">10</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> default_schema: </span><span class="token boolean">NULL</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> schema_locked: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">transaction_persistent: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> fast_forward: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> backend: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> frontend: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> max_connections: </span><span class="token number">10000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"> </span><span class="token number">2.</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> </span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token operator">*</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> username: doris</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> password: P</span><span class="token variable" style="color:rgb(189, 147, 249);font-style:italic">@ssword1</span><span class="token operator">!</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> active: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> use_ssl: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> default_hostgroup: </span><span class="token number">10</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> default_schema: </span><span class="token boolean">NULL</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> schema_locked: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">transaction_persistent: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> fast_forward: </span><span class="token number">0</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> backend: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> frontend: </span><span class="token number">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> max_connections: </span><span class="token number">10000</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">2</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.000</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Although the mysql_users </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> </span><span class="token operator">is</span><span class="token plain"> </span><span class="token operator">not</span><span class="token plain"> described </span><span class="token operator">in</span><span class="token plain"> detail here</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> only users </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">with</span><span class="token plain"> active</span><span class="token operator">=</span><span class="token number">1</span><span class="token plain"> are valid users</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token operator">and</span><span class="token plain"> the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">default</span><span class="token plain"> active </span><span class="token operator">is</span><span class="token plain"> </span><span class="token number">1.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">load</span><span class="token plain"> mysql users </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> runtime</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.001</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">MySQL </span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">none</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">save</span><span class="token plain"> mysql users </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">disk</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.123</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">In</span><span class="token plain"> this way</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> you can </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">use</span><span class="token plain"> the doris username </span><span class="token operator">and</span><span class="token plain"> password </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">connect</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> ProxySQL through the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">sql</span><span class="token plain"> client</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h4 class="anchor anchorWithStickyNavbar_LWe7" id="connect-to-doris-through-proxysql-for-testing">Connect to Doris through ProxySQL for testing<a href="#connect-to-doris-through-proxysql-for-testing" class="hash-link" aria-label="Direct link to Connect to Doris through ProxySQL for testing" title="Direct link to Connect to Doris through ProxySQL for testing">​</a></h4><p>Next, use the root user and doris user to test whether they can be routed to the default hostgroup_id=10 (it is a write group) to read data. The following is connected through the forwarding port 6033, the connection is forwarded to the real back-end database!</p><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-sql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token comment" style="color:rgb(98, 114, 164)">#mysql -uroot -p -P6033 -hdoris01 -e &quot;show databases;&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Enter password: </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">ERROR </span><span class="token number">9001</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">HY000</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> at line </span><span class="token number">1</span><span class="token plain">: Max </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">connect</span><span class="token plain"> timeout reached </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">while</span><span class="token plain"> reaching hostgroup </span><span class="token number">10</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">after</span><span class="token plain"> </span><span class="token number">10000</span><span class="token plain">ms</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">At this </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">time</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> an error was found</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token operator">and</span><span class="token plain"> it was </span><span class="token operator">not</span><span class="token plain"> forwarded </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">real</span><span class="token plain"> doris fe </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">on</span><span class="token plain"> the backend</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Through the log</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> you can see that there </span><span class="token operator">is</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> autocommit</span><span class="token operator">=</span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">open</span><span class="token plain"> the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">transaction</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Check</span><span class="token plain"> the configuration found:</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">-</span><span class="token plain">forward_autocommit</span><span class="token operator">=</span><span class="token boolean">false</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">-</span><span class="token plain">autocommit_false_is_transaction</span><span class="token operator">=</span><span class="token boolean">false</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">We don’t need </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">read</span><span class="token plain"> </span><span class="token operator">and</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">write</span><span class="token plain"> separation here</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> just turn these two parameters </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">into</span><span class="token plain"> </span><span class="token boolean">true</span><span class="token plain"> directly through the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">following</span><span class="token plain"> statement</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">UPDATE</span><span class="token plain"> global_variables </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">SET</span><span class="token plain"> variable_value</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;true&#x27;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">WHERE</span><span class="token plain"> variable_name</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;mysql-forward_autocommit&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.00</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">UPDATE</span><span class="token plain"> global_variables </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">SET</span><span class="token plain"> variable_value</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;true&#x27;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">WHERE</span><span class="token plain"> variable_name</span><span class="token operator">=</span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;mysql-autocommit_false_is_transaction&#x27;</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.01</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">LOAD</span><span class="token plain"> MYSQL VARIABLES </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">TO</span><span class="token plain"> RUNTIME</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">0</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.00</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">SAVE</span><span class="token plain"> MYSQL VARIABLES </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">TO</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DISK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Query OK</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">98</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> affected </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.12</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Then</span><span class="token plain"> we try again </span><span class="token operator">and</span><span class="token plain"> it shows success</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token plain">root</span><span class="token variable" style="color:rgb(189, 147, 249);font-style:italic">@doris01</span><span class="token plain"> </span><span class="token operator">~</span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token comment" style="color:rgb(98, 114, 164)"># mysql -udoris -pP@ssword1! -P6033 -h192.168.9.211 -e &quot;show databases;&quot;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Warning: </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Using</span><span class="token plain"> a password </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">on</span><span class="token plain"> the command line interface can be insecure</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Database</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> doris_audit_db </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> information_schema </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> retail </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------------+</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>OK, that&#x27;s the end, you can use Mysql client, JDBC, etc. to connect to ProxySQL to operate your doris.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="nginx-tcp-reverse-proxy-method">Nginx TCP reverse proxy method<a href="#nginx-tcp-reverse-proxy-method" class="hash-link" aria-label="Direct link to Nginx TCP reverse proxy method" title="Direct link to Nginx TCP reverse proxy method">​</a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="overview">Overview<a href="#overview" class="hash-link" aria-label="Direct link to Overview" title="Direct link to Overview">​</a></h3><p>Nginx can implement load balancing of HTTP and HTTPS protocols, as well as load balancing of TCP protocol. So, the question is, can the load balancing of the Apache Doris database be achieved through Nginx? The answer is: yes. Next, let&#x27;s discuss how to use Nginx to achieve load balancing of Apache Doris.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="environmental-preparation">Environmental preparation<a href="#environmental-preparation" class="hash-link" aria-label="Direct link to Environmental preparation" title="Direct link to Environmental preparation">​</a></h3><p><strong>Note: Using Nginx to achieve load balancing of Apache Doris database, the premise is to build an Apache Doris environment. The IP and port of Apache Doris FE are as follows. Here I use one FE to demonstrate, multiple FEs only You need to add multiple FE IP addresses and ports in the configuration</strong></p><p>The Apache Doris and port to access MySQL through Nginx are shown below.</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">IP: 172.31.7.119 </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">端口: 9030</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="install-dependencies">Install dependencies<a href="#install-dependencies" class="hash-link" aria-label="Direct link to Install dependencies" title="Direct link to Install dependencies">​</a></h3><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token function" style="color:rgb(80, 250, 123)">sudo</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">apt-get</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">install</span><span class="token plain"> build-essential</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token function" style="color:rgb(80, 250, 123)">sudo</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">apt-get</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">install</span><span class="token plain"> libpcre3 libpcre3-dev </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token function" style="color:rgb(80, 250, 123)">sudo</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">apt-get</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">install</span><span class="token plain"> zlib1g-dev</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token function" style="color:rgb(80, 250, 123)">sudo</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">apt-get</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">install</span><span class="token plain"> openssl libssl-dev</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="install-nginx">Install Nginx<a href="#install-nginx" class="hash-link" aria-label="Direct link to Install Nginx" title="Direct link to Install Nginx">​</a></h3><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token function" style="color:rgb(80, 250, 123)">sudo</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">wget</span><span class="token plain"> http://nginx.org/download/nginx-1.18.0.tar.gz</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token function" style="color:rgb(80, 250, 123)">sudo</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">tar</span><span class="token plain"> zxvf nginx-1.18.0.tar.gz</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token builtin class-name" style="color:rgb(189, 147, 249)">cd</span><span class="token plain"> nginx-1.18.0</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token function" style="color:rgb(80, 250, 123)">sudo</span><span class="token plain"> ./configure --prefix</span><span class="token operator">=</span><span class="token plain">/usr/local/nginx --with-stream --with-http_ssl_module --with-http_gzip_static_module --with-http_stub_status_module</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token function" style="color:rgb(80, 250, 123)">sudo</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">make</span><span class="token plain"> </span><span class="token operator">&amp;&amp;</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">make</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">install</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="configure-reverse-proxy">Configure reverse proxy<a href="#configure-reverse-proxy" class="hash-link" aria-label="Direct link to Configure reverse proxy" title="Direct link to Configure reverse proxy">​</a></h3><p>Here is a new configuration file</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token function" style="color:rgb(80, 250, 123)">vim</span><span class="token plain"> /usr/local/nginx/conf/default.conf</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>Then add the following in it</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">events </span><span class="token punctuation" style="color:rgb(248, 248, 242)">{</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">worker_connections </span><span class="token number">1024</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">}</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">stream </span><span class="token punctuation" style="color:rgb(248, 248, 242)">{</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> upstream mysqld </span><span class="token punctuation" style="color:rgb(248, 248, 242)">{</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token builtin class-name" style="color:rgb(189, 147, 249)">hash</span><span class="token plain"> </span><span class="token variable" style="color:rgb(189, 147, 249);font-style:italic">$remote_addr</span><span class="token plain"> consistent</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> server </span><span class="token number">172.31</span><span class="token plain">.7.119:9030 </span><span class="token assign-left variable" style="color:rgb(189, 147, 249);font-style:italic">weight</span><span class="token operator">=</span><span class="token number">1</span><span class="token plain"> </span><span class="token assign-left variable" style="color:rgb(189, 147, 249);font-style:italic">max_fails</span><span class="token operator">=</span><span class="token number">2</span><span class="token plain"> </span><span class="token assign-left variable" style="color:rgb(189, 147, 249);font-style:italic">fail_timeout</span><span class="token operator">=</span><span class="token plain">60s</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token comment" style="color:rgb(98, 114, 164)">## Note: If there are multiple FEs, just load them here. </span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">}</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token comment" style="color:rgb(98, 114, 164)">### Configuration for proxy port, timeout, etc. </span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> server </span><span class="token punctuation" style="color:rgb(248, 248, 242)">{</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> listen </span><span class="token number">6030</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> proxy_connect_timeout 300s</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> proxy_timeout 300s</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> proxy_pass mysqld</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">}</span><span class="token plain"> </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="start-nginx">Start Nginx<a href="#start-nginx" class="hash-link" aria-label="Direct link to Start Nginx" title="Direct link to Start Nginx">​</a></h3><p>Start the specified configuration file</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token builtin class-name" style="color:rgb(189, 147, 249)">cd</span><span class="token plain"> /usr/local/nginx</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">/usr/local/nginx/sbin/nginx -c conf.d/default.conf</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="verify">verify<a href="#verify" class="hash-link" aria-label="Direct link to verify" title="Direct link to verify">​</a></h3><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql -uroot -P6030 -h172.31.7.119</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>Parameter explanation: </p><blockquote><ul><li>-u specifies the Doris username </li><li>-p specifies the Doris password, my password here is empty, so there is no </li><li>-h specifies the Nginx proxy server IP</li><li>-P specifies the port</li></ul></blockquote><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-sql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql </span><span class="token operator">-</span><span class="token plain">uroot </span><span class="token operator">-</span><span class="token plain">P6030 </span><span class="token operator">-</span><span class="token plain">h172</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token number">31.7</span><span class="token number">.119</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Welcome </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> the MySQL monitor</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"> Commands </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">end</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">with</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"> </span><span class="token operator">or</span><span class="token plain"> \g</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Your MySQL connection id </span><span class="token operator">is</span><span class="token plain"> </span><span class="token number">13</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Server version: </span><span class="token number">5.1</span><span class="token number">.0</span><span class="token plain"> Doris version </span><span class="token number">0.15</span><span class="token number">.1</span><span class="token operator">-</span><span class="token plain">rc09</span><span class="token operator">-</span><span class="token plain">Unknown</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Copyright </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">c</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token number">2000</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> </span><span class="token number">2022</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"> Oracle </span><span class="token operator">and</span><span class="token operator">/</span><span class="token operator">or</span><span class="token plain"> its affiliates</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Oracle </span><span class="token operator">is</span><span class="token plain"> a registered trademark </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> Oracle Corporation </span><span class="token operator">and</span><span class="token operator">/</span><span class="token operator">or</span><span class="token plain"> its</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">affiliates</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"> Other names may be trademarks </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> their respective</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">owners</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Type</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;help;&#x27;</span><span class="token plain"> </span><span class="token operator">or</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;\h&#x27;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">for</span><span class="token plain"> help</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Type</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">&#x27;\c&#x27;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> clear the </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">current</span><span class="token plain"> input statement</span><span class="token punctuation" style="color:rgb(248, 248, 242)">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">show</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">databases</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Database</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> information_schema </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> test </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">--------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">2</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.00</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">use</span><span class="token plain"> test</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Reading </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> information </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">for</span><span class="token plain"> completion </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">of</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">table</span><span class="token plain"> </span><span class="token operator">and</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">column</span><span class="token plain"> names</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">You can turn </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">off</span><span class="token plain"> this feature </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">to</span><span class="token plain"> get a quicker startup </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">with</span><span class="token plain"> </span><span class="token operator">-</span><span class="token plain">A</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Database</span><span class="token plain"> changed</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">show</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">tables</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> Tables_in_test </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> dwd_product_live </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">------------------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">1</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">row</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.00</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mysql</span><span class="token operator">&gt;</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">desc</span><span class="token plain"> dwd_product_live</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">-----------------+---------------+------+-------+---------+---------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> Field </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Type</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">Null</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Key</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">Default</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Extra </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">-----------------+---------------+------+-------+---------+---------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> dt </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DATE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">true</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> proId </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">true</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> authorId </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">true</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> roomId </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">true</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> proTitle </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">VARCHAR</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">1024</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> proLogo </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">VARCHAR</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">1024</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> shopId </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> shopTitle </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">VARCHAR</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">1024</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> profrom </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">INT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> proCategory </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> proPrice </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DECIMAL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">18</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">2</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> couponPrice </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DECIMAL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">18</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">2</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> livePrice </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DECIMAL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">18</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">2</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> volume </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> addedTime </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> offTimeUnix </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> offTime </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> createTime </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> createTimeUnix </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> amount </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DECIMAL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">18</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">2</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> views </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> commissionPrice </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DECIMAL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">18</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">2</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> proCostPrice </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DECIMAL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">18</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">2</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> proCode </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">VARCHAR</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">1024</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> proStatus </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">INT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">status</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">INT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> maxPrice </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DECIMAL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">18</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">2</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> liveView </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> firstCategory </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> secondCategory </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> thirdCategory </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> fourCategory </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> minPrice </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">DECIMAL</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">18</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token number">2</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> liveVolume </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> liveClick </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> extensionId </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">VARCHAR</span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">128</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> beginTime </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> roomTitle </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">TEXT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> beginTimeUnix </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">|</span><span class="token plain"> nickname </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">TEXT</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> Yes </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">false</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token boolean">NULL</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token operator">|</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token operator">+</span><span class="token comment" style="color:rgb(98, 114, 164)">-----------------+---------------+------+-------+---------+---------+</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token number">40</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">rows</span><span class="token plain"> </span><span class="token operator">in</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">set</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token number">0.06</span><span class="token plain"> sec</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="haproxy-way">Haproxy way<a href="#haproxy-way" class="hash-link" aria-label="Direct link to Haproxy way" title="Direct link to Haproxy way">​</a></h2><p>HAProxy is a free and open source software written in C language that provides high availability, load balancing, and application proxy based on TCP and HTTP.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="install">Install<a href="#install" class="hash-link" aria-label="Direct link to Install" title="Direct link to Install">​</a></h3><ol><li><p>Download HAProxy</p><p>download link: <a href="https://src.fedoraproject.org/repo/pkgs/haproxy/" target="_blank" rel="noopener noreferrer">https://src.fedoraproject.org/repo/pkgs/haproxy/</a></p></li><li><p>Unzip</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">tar -zxvf haproxy-2.6.15.tar.gz -C /opt/</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mv haproxy-2.6.15 haproxy</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Compile</p><p>Enter the haproxy directory</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">yum install gcc gcc-c++ -y</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">make TARGET=linux-glibc PREFIX=/usr/local/haproxy</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">make install PREFIX=/usr/local/haproxy</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li></ol><h3 class="anchor anchorWithStickyNavbar_LWe7" id="configuration">Configuration<a href="#configuration" class="hash-link" aria-label="Direct link to Configuration" title="Direct link to Configuration">​</a></h3><ol><li><p>Configure the haproxy.conf file</p><p>vim /etc/rsyslog.d/haproxy.conf</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">$ModLoad imudp </span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">$UDPServerRun 514</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">local0.* /usr/local/haproxy/logs/haproxy.log</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">&amp;~</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Enable remote logging</p><p>vim /etc/sysconfig/rsyslog</p><p><code>SYSLOGD_OPTIONS=&quot;-c 2 -r -m 0&quot; </code></p><p>Parameter analysis:</p><ul><li><p>-c 2 Use compatibility mode, default is -c 5. -r turns on remote logging</p></li><li><p>-m 0 mark timestamp. The unit is minutes. When it is 0, it means the function is disabled.</p></li></ul></li><li><p>Make changes effective</p><p><code>systemctl restart rsyslog</code></p></li></ol><ol start="4"><li><p>Edit load balancing file</p><p>vim /usr/local/haproxy/haproxy.cfg</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">#</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"># haproxy is deployed on 172.16.0.3, this machine, and is used to proxy 172.16.0.8, 172.16.0.6, 172.16.0.4, the three machines where fe is deployed.</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">#</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">global</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">maxconn 2000</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">ulimit-n 40075</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">log 127.0.0.1 local0 info</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">uid 200</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">gid 200</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">chroot /var/empty</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">daemon</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">group haproxy</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">user haproxy</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">defaults</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"># Global log configuration</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">log global</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mode http</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">retries 3 # health examination. If the connection fails three times, the server is considered unavailable, mainly through the subsequent check.</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">option redispatch # Redirect to other healthy servers after service becomes unavailable</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"># Timeout configuration</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">timeout connect 5000</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">timeout client 5000</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">timeout server 5000</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">timeout check 2000</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">frontend agent-front</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">bind *:9030 # Translation port on proxy machine</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mode tcp</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">default_backend forward-fe</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">backend forward-fe</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mode tcp</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">balance roundrobin</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">server fe-1 172.16.0.8:9030 weight 1 check inter 3000 rise 2 fall 3</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">server fe-2 172.16.0.4:9030 weight 1 check inter 3000 rise 2 fall 3</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">server fe-3 172.16.0.6:9030 weight 1 check inter 3000 rise 2 fall 3</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">listen http_front # haproxy client page</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">bind *:8888 # IP address of HAProxy WEB</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">mode http</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">log 127.0.0.1 local0 err</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">option httplog</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">stats uri /haproxy # The url of the customized page (that is, the address when accessing is: 172.16.0.3:8888/haproxy)</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">stats auth admin:admin # Control panel account password Account: admin</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">stats refresh 10s</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">stats enable</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li></ol><h3 class="anchor anchorWithStickyNavbar_LWe7" id="start-up">Start up<a href="#start-up" class="hash-link" aria-label="Direct link to Start up" title="Direct link to Start up">​</a></h3><ol><li><p>Start service</p><p><code> /opt/haproxy/haproxy -f /usr/local/haproxy/haproxy.cfg</code></p></li></ol></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/docs/admin-manual/cluster-management/elastic-expansion"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Elastic scaling</div></a><a class="pagination-nav__link pagination-nav__link--next" 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m448.512-382.976c20.992 0 38.4 16.896 38.4 38.4 0 20.992-16.896 38.4-38.4 38.4H284.16c-20.992 0-38.4-16.896-38.4-38.4 0-20.992 16.896-38.4 38.4-38.4h318.976z m-153.088 191.488c20.992 0 38.4 16.896 38.4 38.4 0 20.992-16.896 38.4-38.4 38.4H284.16c-20.992 0-38.4-16.896-38.4-38.4 0-20.992 16.896-38.4 38.4-38.4h165.888z m0 0" p-id="8501" fill="currentColor"></path></svg></a><span class="ml-4">On This Page</span><ul class="table-of-contents table-of-contents__left-border"><li><a href="#code-method" class="table-of-contents__link toc-highlight">Code method</a></li><li><a href="#jdbc-connector" class="table-of-contents__link toc-highlight">JDBC Connector</a></li><li><a href="#proxysql-method" class="table-of-contents__link toc-highlight">ProxySQL method</a><ul><li><a href="#install-proxysql-yum-way" class="table-of-contents__link toc-highlight">Install ProxySQL (yum way)</a></li><li><a href="#proxysql-config" class="table-of-contents__link toc-highlight">ProxySQL Config</a></li></ul></li><li><a href="#nginx-tcp-reverse-proxy-method" class="table-of-contents__link toc-highlight">Nginx TCP reverse proxy method</a><ul><li><a href="#overview" class="table-of-contents__link toc-highlight">Overview</a></li><li><a href="#environmental-preparation" class="table-of-contents__link toc-highlight">Environmental preparation</a></li><li><a href="#install-dependencies" class="table-of-contents__link toc-highlight">Install dependencies</a></li><li><a href="#install-nginx" class="table-of-contents__link toc-highlight">Install Nginx</a></li><li><a href="#configure-reverse-proxy" class="table-of-contents__link toc-highlight">Configure reverse proxy</a></li><li><a href="#start-nginx" class="table-of-contents__link toc-highlight">Start Nginx</a></li><li><a href="#verify" class="table-of-contents__link toc-highlight">verify</a></li></ul></li><li><a href="#haproxy-way" class="table-of-contents__link toc-highlight">Haproxy way</a><ul><li><a href="#install" class="table-of-contents__link toc-highlight">Install</a></li><li><a href="#configuration" class="table-of-contents__link toc-highlight">Configuration</a></li><li><a href="#start-up" class="table-of-contents__link toc-highlight">Start up</a></li></ul></li></ul></div></div></div></div></main></div></div></div><div class="footer pt-16 pb-10"><div class="container"><div class="footer-box"><div class="left"><img src="/images/asf_logo_apache.svg" alt="" class="themedImage_ToTc themedImage--light_HNdA footer__logo"><img src="/images/asf_logo_apache.svg" alt="" class="themedImage_ToTc themedImage--dark_i4oU footer__logo"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">ASF</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://www.apache.org/" target="_blank" rel="noopener noreferrer" class="footer__link-item">Foundation<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path 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