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sidebar category 'Development'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="/docs/latest/release-info/release-notes">Release info</a></div></li><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-1 menu__list-item"><a class="menu__link" href="/docs/latest/misc/papers-and-talks">Papers</a></li></ul></nav></div></div></aside><main class="docMainContainer_gTbr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Getting started</span><meta itemprop="position" content="1"></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>Quickstart (local)</h1></header><p>This quickstart helps you install Apache Druid and introduces you to Druid ingestion and query features. For this tutorial, you need a machine with at least 6 GiB of RAM.</p><p>In this quickstart, you'll:</p><ul><li>install Druid</li><li>start up Druid services</li><li>use SQL to ingest and query data</li></ul><p>Druid supports a variety of ingestion options. Once you're done with this tutorial, refer to the |
| <a href="/docs/latest/ingestion/">Ingestion</a> page to determine which ingestion method is right for you.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="prerequisites">Prerequisites<a href="#prerequisites" class="hash-link" aria-label="Direct link to Prerequisites" title="Direct link to Prerequisites"></a></h2><p>You can follow these steps on a relatively modest machine, such as a workstation or virtual server with 6 GiB of RAM.</p><p>The software requirements for the installation machine are:</p><ul><li>Linux, Mac OS X, or other Unix-like OS. (Windows is not supported)</li><li><a href="/docs/latest/operations/java">Java 8u92+, 11, or 17</a></li><li>Python 3 (preferred) or Python 2</li><li>Perl 5</li></ul><p>Java must be available. Either it is on your path, or set one of the <code>JAVA_HOME</code> or <code>DRUID_JAVA_HOME</code> environment variables. |
| You can run <code>apache-druid-30.0.0/bin/verify-java</code> to verify Java requirements for your environment.</p><p>Before installing a production Druid instance, be sure to review the <a href="/docs/latest/operations/security-overview">security |
| overview</a>. In general, avoid running Druid as root user. Consider creating a |
| dedicated user account for running Druid. </p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="install-druid">Install Druid<a href="#install-druid" class="hash-link" aria-label="Direct link to Install Druid" title="Direct link to Install Druid"></a></h2><p>Download the <a href="https://www.apache.org/dyn/closer.cgi?path=/druid/30.0.0/apache-druid-30.0.0-bin.tar.gz" target="_blank" rel="noopener noreferrer">30.0.0 release</a> from Apache Druid. </p><p>In your terminal, extract the file and change directories to the distribution directory:</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><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:#bfc7d5"><span class="token function" style="color:rgb(130, 170, 255)">tar</span><span class="token plain"> -xzf apache-druid-30.0.0-bin.tar.gz</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token builtin class-name" style="color:rgb(255, 203, 107)">cd</span><span class="token plain"> apache-druid-30.0.0</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>The distribution directory contains <code>LICENSE</code> and <code>NOTICE</code> files and subdirectories for executable files, configuration files, sample data and more.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="start-up-druid-services">Start up Druid services<a href="#start-up-druid-services" class="hash-link" aria-label="Direct link to Start up Druid services" title="Direct link to Start up Druid services"></a></h2><p>Start up Druid services using the automatic single-machine configuration. |
| This configuration includes default settings that are appropriate for this tutorial, such as loading the <code>druid-multi-stage-query</code> extension by default so that you can use the MSQ task engine.</p><p>You can view the default settings in the configuration files located in <code>conf/druid/auto</code>.</p><p>From the apache-druid-30.0.0 package root, run the following command:</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><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:#bfc7d5"><span class="token plain">./bin/start-druid</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>This launches instances of ZooKeeper and the Druid services. |
| For example:</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><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:#bfc7d5"><span class="token plain">$ ./bin/start-druid</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Starting Apache Druid.</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Open http://localhost:8888/ </span><span class="token keyword" style="font-style:italic">in</span><span class="token plain"> your browser to access the web console.</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Or, </span><span class="token keyword" style="font-style:italic">if</span><span class="token plain"> you have enabled TLS, use https on port </span><span class="token number" style="color:rgb(247, 140, 108)">9088</span><span class="token plain">.</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Starting services with log directory </span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">/apache-druid-30.0.0/log</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain">.</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Running command</span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">zk</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain">: bin/run-zk conf</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Running command</span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">broker</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain">: bin/run-druid broker /apache-druid-30.0.0/conf/druid/single-server/quickstart </span><span class="token string" style="color:rgb(195, 232, 141)">'-Xms1187m -Xmx1187m -XX:MaxDirectMemorySize=791m'</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Running command</span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">router</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain">: bin/run-druid router /apache-druid-30.0.0/conf/druid/single-server/quickstart </span><span class="token string" style="color:rgb(195, 232, 141)">'-Xms128m -Xmx128m'</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Running command</span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">coordinator-overlord</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain">: bin/run-druid coordinator-overlord /apache-druid-30.0.0/conf/druid/single-server/quickstart </span><span class="token string" style="color:rgb(195, 232, 141)">'-Xms1290m -Xmx1290m'</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Running command</span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">historical</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain">: bin/run-druid historical /apache-druid-30.0.0/conf/druid/single-server/quickstart </span><span class="token string" style="color:rgb(195, 232, 141)">'-Xms1376m -Xmx1376m -XX:MaxDirectMemorySize=2064m'</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">Tue Nov </span><span class="token number" style="color:rgb(247, 140, 108)">29</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">16</span><span class="token plain">:31:06 </span><span class="token number" style="color:rgb(247, 140, 108)">2022</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain"> Running command</span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain">middleManager</span><span class="token punctuation" style="color:rgb(199, 146, 234)">]</span><span class="token plain">: bin/run-druid middleManager /apache-druid-30.0.0/conf/druid/single-server/quickstart </span><span class="token string" style="color:rgb(195, 232, 141)">'-Xms64m -Xmx64m'</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">'-Ddruid.worker.capacity=2 -Ddruid.indexer.runner.javaOptsArray=["-server","-Duser.timezone=UTC","-Dfile.encoding=UTF-8","-XX:+ExitOnOutOfMemoryError","-Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager","-Xms256m","-Xmx256m","-XX:MaxDirectMemorySize=256m"]'</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>Druid may use up to 80% of the total available system memory. |
| To explicitly set the total memory available to Druid, pass a value for the memory parameter. For example, <code>./bin/start-druid -m 16g</code>. </p><p>Druid stores all persistent state data, such as the cluster metadata store and data segments, in <code>apache-druid-30.0.0/var</code>. |
| Each service writes to a log file under <code>apache-druid-30.0.0/log</code>.</p><p>At any time, you can revert Druid to its original, post-installation state by deleting the entire <code>var</code> directory. You may want to do this, for example, between Druid tutorials or after experimentation, to start with a fresh instance. </p><p>To stop Druid at any time, use CTRL+C in the terminal. This exits the <code>bin/start-druid</code> script and terminates all Druid processes.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="open-the-web-console">Open the web console<a href="#open-the-web-console" class="hash-link" aria-label="Direct link to Open the web console" title="Direct link to Open the web console"></a></h2><p>After starting the Druid services, open the <a href="/docs/latest/operations/web-console">web console</a> at <a href="http://localhost:8888" target="_blank" rel="noopener noreferrer">http://localhost:8888</a>. </p><p><img loading="lazy" alt="web console" src="/assets/images/tutorial-quickstart-01-55397fb67d2b63fa55d39770575a846f.png" title="web console" width="1250" height="740" class="img_ev3q"></p><p>It may take a few seconds for all Druid services to finish starting, including the <a href="/docs/latest/design/router">Druid router</a>, which serves the console. If you attempt to open the web console before startup is complete, you may see errors in the browser. Wait a few moments and try again.</p><p>In this quickstart, you use the the web console to perform ingestion. The MSQ task engine specifically uses the <strong>Query</strong> view to edit and run SQL queries. |
| For a complete walkthrough of the <strong>Query</strong> view as it relates to the multi-stage query architecture and the MSQ task engine, see <a href="/docs/latest/operations/web-console">UI walkthrough</a>.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="load-data">Load data<a href="#load-data" class="hash-link" aria-label="Direct link to Load data" title="Direct link to Load data"></a></h2><p>The Druid distribution bundles the <code>wikiticker-2015-09-12-sampled.json.gz</code> sample dataset that you can use for testing. The sample dataset is located in the <code>quickstart/tutorial/</code> folder, accessible from the Druid root directory, and represents Wikipedia page edits for a given day. </p><p>Follow these steps to load the sample Wikipedia dataset:</p><ol><li><p>In the <strong>Query</strong> view, click <strong>Connect external data</strong>.</p></li><li><p>Select the <strong>Local disk</strong> tile and enter the following values:</p><ul><li><p><strong>Base directory</strong>: <code>quickstart/tutorial/</code></p></li><li><p><strong>File filter</strong>: <code>wikiticker-2015-09-12-sampled.json.gz</code> </p></li></ul><p><img loading="lazy" alt="Data location" src="/assets/images/tutorial-quickstart-02-02e231b09af60b9b3e84a66bf3742b49.png" title="Data location" width="1250" height="740" class="img_ev3q"></p><p>Entering the base directory and <a href="https://commons.apache.org/proper/commons-io/apidocs/org/apache/commons/io/filefilter/WildcardFileFilter.html" target="_blank" rel="noopener noreferrer">wildcard file filter</a> separately, as afforded by the UI, allows you to specify multiple files for ingestion at once.</p></li><li><p>Click <strong>Connect data</strong>. </p></li><li><p>On the <strong>Parse</strong> page, you can examine the raw data and perform the following optional actions before loading data into Druid: </p><ul><li>Expand a row to see the corresponding source data.</li><li>Customize how the data is handled by selecting from the <strong>Input format</strong> options.</li><li>Adjust the primary timestamp column for the data. |
| Druid requires data to have a primary timestamp column (internally stored in a column called <code>__time</code>). |
| If your dataset doesn't have a timestamp, Druid uses the default value of <code>1970-01-01 00:00:00</code>.</li></ul><p><img loading="lazy" alt="Data sample" src="/assets/images/tutorial-quickstart-03-ca6142482a661095586235c8a9327067.png" title="Data sample" width="1250" height="740" class="img_ev3q"></p></li><li><p>Click <strong>Done</strong>. You're returned to the <strong>Query</strong> view that displays the newly generated query. |
| The query inserts the sample data into the table named <code>wikiticker-2015-09-12-sampled</code>.</p><details class="details_lb9f alert alert--info details_b_Ee" data-collapsed="true"><summary>Show the query</summary><div><div class="collapsibleContent_i85q"><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><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:#bfc7d5"><span class="token keyword" style="font-style:italic">REPLACE</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">INTO</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"wikiticker-2015-09-12-sampled"</span><span class="token plain"> OVERWRITE </span><span class="token keyword" style="font-style:italic">ALL</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">WITH</span><span class="token plain"> input_data </span><span class="token keyword" style="font-style:italic">AS</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token keyword" style="font-style:italic">SELECT</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">*</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">FROM</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">TABLE</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> EXTERN</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">'{"type":"local","baseDir":"quickstart/tutorial/","filter":"wikiticker-2015-09-12-sampled.json.gz"}'</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">'{"type":"json"}'</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">'[{"name":"time","type":"string"},{"name":"channel","type":"string"},{"name":"cityName","type":"string"},{"name":"comment","type":"string"},{"name":"countryIsoCode","type":"string"},{"name":"countryName","type":"string"},{"name":"isAnonymous","type":"string"},{"name":"isMinor","type":"string"},{"name":"isNew","type":"string"},{"name":"isRobot","type":"string"},{"name":"isUnpatrolled","type":"string"},{"name":"metroCode","type":"long"},{"name":"namespace","type":"string"},{"name":"page","type":"string"},{"name":"regionIsoCode","type":"string"},{"name":"regionName","type":"string"},{"name":"user","type":"string"},{"name":"delta","type":"long"},{"name":"added","type":"long"},{"name":"deleted","type":"long"}]'</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">SELECT</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> TIME_PARSE</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"time"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">AS</span><span class="token plain"> __time</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> channel</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> cityName</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">comment</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> countryIsoCode</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> countryName</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> isAnonymous</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> isMinor</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> isNew</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> isRobot</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> isUnpatrolled</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> metroCode</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> namespace</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> page</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> regionIsoCode</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> regionName</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">user</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> delta</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> added</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> deleted</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">FROM</span><span class="token plain"> input_data</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain">PARTITIONED </span><span class="token keyword" style="font-style:italic">BY</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">DAY</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></div></div></details></li><li><p>Optionally, click <strong>Preview</strong> to see the general shape of the data before you ingest it.</p></li><li><p>Edit the first line of the query and change the default destination datasource name from <code>wikiticker-2015-09-12-sampled</code> to <code>wikipedia</code>.</p></li><li><p>Click <strong>Run</strong> to execute the query. The task may take a minute or two to complete. When done, the task displays its duration and the number of rows inserted into the table. The view is set to automatically refresh, so you don't need to refresh the browser to see the status change.</p><p> <img loading="lazy" alt="Run query" src="/assets/images/tutorial-quickstart-04-10eea489c28fe821798a99cd69f18ea6.png" title="Run query" width="1250" height="740" class="img_ev3q"></p><p>A successful task means that Druid data servers have picked up one or more segments.</p></li></ol><h2 class="anchor anchorWithStickyNavbar_LWe7" id="query-data">Query data<a href="#query-data" class="hash-link" aria-label="Direct link to Query data" title="Direct link to Query data"></a></h2><p>Once the ingestion job is complete, you can query the data. </p><p>In the <strong>Query</strong> view, run the following query to produce a list of top channels:</p><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><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:#bfc7d5"><span class="token keyword" style="font-style:italic">SELECT</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> channel</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">COUNT</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token operator" style="color:rgb(137, 221, 255)">*</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">FROM</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"wikipedia"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">GROUP</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">BY</span><span class="token plain"> channel</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">ORDER</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">BY</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">COUNT</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token operator" style="color:rgb(137, 221, 255)">*</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">DESC</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><img loading="lazy" alt="Query view" src="/assets/images/tutorial-quickstart-05-85c807249150e21f285bbbbff7dc9a4a.png" title="Query view" width="1250" height="740" class="img_ev3q"></p><p>Congratulations! You've gone from downloading Druid to querying data with the MSQ task engine in just one quickstart.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="next-steps">Next steps<a href="#next-steps" class="hash-link" aria-label="Direct link to Next steps" title="Direct link to Next steps"></a></h2><p>See the following topics for more information:</p><ul><li><a href="/docs/latest/querying/sql">Druid SQL overview</a> or the <a href="/docs/latest/tutorials/tutorial-query">Query tutorial</a> to learn about how to query the data you just ingested.</li><li><a href="/docs/latest/ingestion/">Ingestion overview</a> to explore options for ingesting more data.</li><li><a href="/docs/latest/tutorials/tutorial-msq-extern">Tutorial: Load files using SQL</a> to learn how to generate a SQL query that loads external data into a Druid datasource.</li><li><a href="/docs/latest/tutorials/tutorial-batch-native">Tutorial: Load data with native batch ingestion</a> to load and query data with Druid's native batch ingestion feature.</li><li><a href="/docs/latest/tutorials/tutorial-kafka">Tutorial: Load stream data from Apache Kafka</a> to load streaming data from a Kafka topic.</li><li><a href="/docs/latest/configuration/extensions">Extensions</a> for details on Druid extensions.</li></ul><p>Remember that after stopping Druid services, you can start clean next time by deleting the <code>var</code> directory from the Druid root directory and running the <code>bin/start-druid</code> script again. You may want to do this before using other data ingestion tutorials, since they use the same Wikipedia datasource.</p></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/docs/latest/design/"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Introduction to Apache Druid</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/docs/latest/operations/single-server"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Single server deployment</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#prerequisites" class="table-of-contents__link toc-highlight">Prerequisites</a></li><li><a href="#install-druid" class="table-of-contents__link toc-highlight">Install Druid</a></li><li><a href="#start-up-druid-services" class="table-of-contents__link toc-highlight">Start up Druid services</a></li><li><a href="#open-the-web-console" class="table-of-contents__link toc-highlight">Open the web console</a></li><li><a href="#load-data" class="table-of-contents__link toc-highlight">Load data</a></li><li><a href="#query-data" class="table-of-contents__link toc-highlight">Query data</a></li><li><a href="#next-steps" class="table-of-contents__link toc-highlight">Next steps</a></li></ul></div></div></div></div></main></div></div><footer class="footer"><div class="container container-fluid"><div class="footer__bottom text--center"><div class="margin-bottom--sm"><img src="/img/favicon.png" class="themedImage_ToTc themedImage--light_HNdA footer__logo"><img src="/img/favicon.png" class="themedImage_ToTc themedImage--dark_i4oU footer__logo"></div><div class="footer__copyright">Copyright © 2023 Apache Software Foundation. Except where otherwise noted, licensed under CC BY-SA 4.0. Apache Druid, Druid, and the Druid logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</div></div></div></footer></div> |
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