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| GitHub |
| <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>IoTDB用户手册 (V0.12.x)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>IoTDB简介</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>快速上手</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>数据模式与概念</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>SQL命令行终端(CLI)</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>权限管理</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>IoTDB-SQL 语言</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>应用编程接口</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>用户定义函数(UDF)</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>通信服务协议</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>系统工具</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>端云协同</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>系统集成</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>集群搭建</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/zh/UserGuide/V0.12.x/Cluster/Cluster-Setup.html" aria-current="page" class="active sidebar-link">集群搭建</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>常见问题</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>附录</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><p><strong>集群模式目前是测试版！请谨慎在生产环境中使用。</strong></p> <h1 id="集群设置"><a href="#集群设置" class="header-anchor">#</a> 集群设置</h1> <p>安装环境请参考<a href="/zh/UserGuide/V0.12.x/QuickStart/QuickStart.html">快速上手/安装环境章节</a></p> <h2 id="前提条件"><a href="#前提条件" class="header-anchor">#</a> 前提条件</h2> <p>如果您在使用Windows系统，请安装MinGW，WSL或者git bash。</p> <h2 id="集群环境搭建"><a href="#集群环境搭建" class="header-anchor">#</a> 集群环境搭建</h2> <p>您可以搭建伪分布式模式或是分布式模式的集群，伪分布式模式和分布式模式的主要区别是配置文件中<code>seed_nodes</code>的不同，配置项含义请参考<a href="#%E9%85%8D%E7%BD%AE%E9%A1%B9">配置项</a>。 |
| 启动其中一个节点的服务，需要执行如下命令：</p> <div class="language-bash line-numbers-mode"><pre class="language-bash"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span> <span class="token function">nohup</span> sbin/start-node.sh <span class="token punctuation">[</span>printgc<span class="token punctuation">]</span> <span class="token punctuation">[</span><span class="token operator"><</span>conf_path<span class="token operator">></span><span class="token punctuation">]</span> <span class="token operator">></span>/dev/null <span class="token operator"><span class="token file-descriptor important">2</span>></span><span class="token file-descriptor important">&1</span> <span class="token operator">&</span> |
| |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span> sbin<span class="token punctuation">\</span>start-node.bat <span class="token punctuation">[</span>printgc<span class="token punctuation">]</span> <span class="token punctuation">[</span><span class="token operator"><</span>conf_path<span class="token operator">></span><span class="token punctuation">]</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><p><code>printgc</code>表示在启动的时候，会开启GC日志。 |
| <code><conf_path></code>使用<code>conf_path</code>文件夹里面的配置文件覆盖默认配置文件。</p> <h2 id="被覆盖的单机版选项"><a href="#被覆盖的单机版选项" class="header-anchor">#</a> 被覆盖的单机版选项</h2> <p>iotdb-engines.properties配置文件中的部分内容会不再生效：</p> <ul><li><p><code>enable_auto_create_schema</code> 不再生效，并被视为<code>false</code>. 应使用 iotdb-cluster.properties 中的<br> <code>enable_auto_create_schema</code> 来控制是否自动创建序列。</p></li> <li><p><code>is_sync_enable</code> 不再生效，并被视为 <code>false</code>.</p></li></ul> <h2 id="配置项"><a href="#配置项" class="header-anchor">#</a> 配置项</h2> <p>为方便IoTDB Server的配置与管理，IoTDB Server为用户提供三种配置项，使得您可以在启动服务或服务运行时对其进行配置。</p> <p>三种配置项的配置文件均位于IoTDB安装目录：<code>$IOTDB_HOME/conf</code>文件夹下,其中涉及server配置的共有4个文件，分别为：<code>iotdb-cluster.properties</code>、<code>iotdb-engine.properties</code>、<code>logback.xml</code> 和 <code>iotdb-env.sh</code>(Unix系统)/<code>iotdb-env.bat</code>(Windows系统), 您可以通过更改其中的配置项对系统运行的相关配置项进行配置。</p> <p>配置文件的说明如下：</p> <ul><li><p><code>iotdb-env.sh</code>/<code>iotdb-env.bat</code>：环境配置项的默认配置文件。您可以在文件中配置JAVA-JVM的相关系统配置项。</p></li> <li><p><code>iotdb-engine.properties</code>：IoTDB引擎层系统配置项的默认配置文件。您可以在文件中配置IoTDB引擎运行时的相关参数。此外，用户可以在文件中配置IoTDB存储时TsFile文件的相关信息，如每次将内存中的数据写入到磁盘前的缓存大小(<code>group_size_in_byte</code>)，内存中每个列打一次包的大小(<code>page_size_in_byte</code>)等。</p></li> <li><p><code>logback.xml</code>: 日志配置文件，比如日志级别等。</p></li> <li><p><code>iotdb-cluster.properties</code>: IoTDB集群所需要的一些配置。</p></li></ul> <p><code>iotdb-engine.properties</code>、<code>iotdb-env.sh</code>/<code>iotdb-env.bat</code> 两个配置文件详细说明请参考<a href="/zh/UserGuide/V0.12.x/Appendix/Config-Manual.html">附录/配置手册</a>，下面描述的配置项是在<code>iotdb-cluster.properties</code>文件中的，也可以直接查看<a href="https://github.com/apache/iotdb/blob/master/cluster/src/assembly/resources/conf/iotdb-cluster.properties" target="_blank" rel="noopener noreferrer">配置文件<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a> 中的注释。</p> <ul><li>internal_ip</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">internal_ip</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">IOTDB 集群各个节点之间内部通信的IP地址，比如心跳、snapshot快照、raft log等</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">127.0.0.1</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效，集群建立后不可再修改</td></tr></tbody></table> <ul><li>internal_meta_port</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">internal_meta_port</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">IoTDB meta服务端口，用于元数据组（又称集群管理组）通信，元数据组管理集群配置和存储组信息<strong>IoTDB将为每个meta服务自动创建心跳端口。默认meta服务心跳端口为<code>internal_meta_port+1</code>，请确认这两个端口不是系统保留端口并且未被占用</strong></td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">9003</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效，集群建立后不可再修改</td></tr></tbody></table> <ul><li>internal_data_port</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">internal_data_port</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">IoTDB data服务端口，用于数据组通信，数据组管理数据模式和数据的存储<strong>IoTDB将为每个data服务自动创建心跳端口。默认的data服务心跳端口为<code>internal_data_port+1</code>。请确认这两个端口不是系统保留端口并且未被占用</strong></td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">40010</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效，集群建立后不可再修改</td></tr></tbody></table> <ul><li>open_server_rpc_port</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">open_server_rpc_port</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">是否打开单机模块的rpc port，用于调试模式，如果设置为true，则单机模块的rpc port设置为<code>rpc_port (in iotdb-engines.properties) + 1</code></td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Boolean</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">false</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效，集群建立后不可再修改</td></tr></tbody></table> <ul><li>seed_nodes</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">seed_nodes</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">集群中节点的地址，<code>{IP/DOMAIN}:internal_meta_port</code>格式，用逗号分割；对于伪分布式模式，可以都填写<code>localhost</code>，或是<code>127.0.0.1</code> 或是混合填写，但是不能够出现真实的ip地址；对于分布式模式，支持填写real ip 或是hostname，但是不能够出现<code>localhost</code>或是<code>127.0.0.1</code>。当使用<code>start-node.sh(.bat)</code>启动节点时，此配置意味着形成初始群集的节点，每个节点的<code>seed_nodes</code>应该一致，否则群集将初始化失败；当使用<code>add-node.sh(.bat)</code>添加节点到集群中时，此配置项可以是集群中已经存在的任何节点，不需要是用<code>start-node.sh(bat)</code>构建初始集群的节点。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">127.0.0.1:9003,127.0.0.1:9005,127.0.0.1:9007</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>rpc_thrift_compression_enable</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">rpc_thrift_compression_enable</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">是否开启thrift压缩通信，<strong>注意这个参数要各个节点保持一致，也要与客户端保持一致，同时也要与<code>iotdb-engine.properties</code>中<code>rpc_thrift_compression_enable</code>参数保持一致</strong></td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Boolean</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">false</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效，需要整个集群同时更改</td></tr></tbody></table> <ul><li>default_replica_num</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">default_replica_num</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">集群副本数</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">3</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效，集群建立后不可更改</td></tr></tbody></table> <ul><li>cluster_name</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">cluster_name</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">集群名称，集群名称用以标识不同的集群，<strong>一个集群中所有节点的cluster_name都应相同</strong></td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">default</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>connection_timeout_ms</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">connection_timeout_ms</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">同一个raft组各个节点之间的心跳超时时间，单位毫秒</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">20000</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>read_operation_timeout_ms</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">read_operation_timeout_ms</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">读取操作超时时间，仅用于内部通信，不适用于整个操作，单位毫秒</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">30000</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>write_operation_timeout_ms</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">write_operation_timeout_ms</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">写入操作超时时间，仅用于内部通信，不适用于整个操作，单位毫秒</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">30000</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>min_num_of_logs_in_mem</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">min_num_of_logs_in_mem</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">删除日志操作执行后，内存中保留的最多的提交的日志的数量。增大这个值将减少在CatchUp使用快照的机会，但也会增加内存占用量</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">100</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>max_num_of_logs_in_mem</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">max_num_of_logs_in_mem</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">当内存中已提交的日志条数达到这个值之后，就会触发删除日志的操作，增大这个值将减少在CatchUp使用快照的机会，但也会增加内存占用量</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">1000</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>log_deletion_check_interval_second</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">log_deletion_check_interval_second</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">检查删除日志任务的时间间隔，每次删除日志任务将会把已提交日志超过min_num_of_logs_in_mem条的最老部分删除，单位秒</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">60</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>enable_auto_create_schema</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">enable_auto_create_schema</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">是否支持自动创建schema，<strong>这个值会覆盖<code>iotdb-engine.properties</code>中<code>enable_auto_create_schema</code>的配置</strong></td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">BOOLEAN</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">true</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>consistency_level</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">consistency_level</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">读一致性，目前支持3种一致性：strong、mid、weak。strong consistency每次操作都会尝试与Leader同步以获取最新的数据，如果失败（超时），则直接向用户返回错误； mid consistency每次操作将首先尝试与Leader进行同步，但是如果失败（超时），它将使用本地当前数据向用户提供服务； weak consistency不会与Leader进行同步，而只是使用本地数据向用户提供服务</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">strong、mid、weak</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">mid</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <ul><li>is_enable_raft_log_persistence</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">is_enable_raft_log_persistence</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">是否开启raft log持久化</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">BOOLEAN</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">true</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务生效</td></tr></tbody></table> <h2 id="开启gc日志"><a href="#开启gc日志" class="header-anchor">#</a> 开启GC日志</h2> <p>GC日志默认是关闭的。为了性能调优，用户可能会需要收集GC信息。 |
| 若要打开GC日志，则需要在启动IoTDB Server的时候加上<code>printgc</code>参数：</p> <div class="language-bash line-numbers-mode"><pre class="language-bash"><code><span class="token function">nohup</span> sbin/start-node.sh printgc <span class="token operator">></span>/dev/null <span class="token operator"><span class="token file-descriptor important">2</span>></span><span class="token file-descriptor important">&1</span> <span class="token operator">&</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>或者</p> <div class="language-bash line-numbers-mode"><pre class="language-bash"><code>sbin<span class="token punctuation">\</span>start-node.bat printgc |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>GC日志会被存储在<code>IOTDB_HOME/logs/</code>下面。</p></div> <div class="page-nav"><p class="inner"><span class="prev"> |
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