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itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Migrate from firehose</span><meta itemprop="position" content="2"></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>Migrate from firehose to input source ingestion (legacy)</h1></header><p>Apache deprecated support for Druid firehoses in version 0.17. Support for firehose ingestion was removed in version 26.0.</p> |
| <p>Firehose ingestion doesn't work with newer Druid versions, so you must be using an ingestion spec with a defined input source before you upgrade.</p> |
| <h2 class="anchor anchorWithStickyNavbar_LWe7" id="migrate-from-firehose-ingestion-to-an-input-source">Migrate from firehose ingestion to an input source<a href="#migrate-from-firehose-ingestion-to-an-input-source" class="hash-link" aria-label="Direct link to Migrate from firehose ingestion to an input source" title="Direct link to Migrate from firehose ingestion to an input source"></a></h2> |
| <p>To migrate from firehose ingestion, you can use the Druid console to update your ingestion spec, or you can update it manually.</p> |
| <h3 class="anchor anchorWithStickyNavbar_LWe7" id="use-the-druid-console">Use the Druid console<a href="#use-the-druid-console" class="hash-link" aria-label="Direct link to Use the Druid console" title="Direct link to Use the Druid console"></a></h3> |
| <p>To update your ingestion spec using the Druid console, open the console and copy your spec into the <strong>Edit spec</strong> stage of the data loader.</p> |
| <p>Druid converts the spec into one with a defined input source. For example, it converts the <a href="#example-firehose-ingestion-spec">example firehose ingestion spec</a> below into the <a href="#example-ingestion-spec-after-migration">example ingestion spec after migration</a>.</p> |
| <p>If you're unable to use the console or you have problems with the console method, the alternative is to update your ingestion spec manually.</p> |
| <h3 class="anchor anchorWithStickyNavbar_LWe7" id="update-your-ingestion-spec-manually">Update your ingestion spec manually<a href="#update-your-ingestion-spec-manually" class="hash-link" aria-label="Direct link to Update your ingestion spec manually" title="Direct link to Update your ingestion spec manually"></a></h3> |
| <p>To update your ingestion spec manually, copy your existing spec into a new file. Refer to <a href="/docs/latest/ingestion/native-batch-firehose">Native batch ingestion with firehose (Deprecated)</a> for a description of firehose properties.</p> |
| <p>Edit the new file as follows:</p> |
| <ol> |
| <li>In the <code>ioConfig</code> component, replace the <code>firehose</code> definition with an <code>inputSource</code> definition for your chosen input source. See <a href="/docs/latest/ingestion/input-sources">Native batch input sources</a> for details.</li> |
| <li>Move the <code>timeStampSpec</code> definition from <code>parser.parseSpec</code> to the <code>dataSchema</code> component.</li> |
| <li>Move the <code>dimensionsSpec</code> definition from <code>parser.parseSpec</code> to the <code>dataSchema</code> component.</li> |
| <li>Move the <code>format</code> definition from <code>parser.parseSpec</code> to an <code>inputFormat</code> definition in <code>ioConfig</code>.</li> |
| <li>Delete the <code>parser</code> definition.</li> |
| <li>Save the file. |
| You can check the format of your new ingestion file against the <a href="#example-ingestion-spec-after-migration">migrated example</a> below.</li> |
| <li>Test the new ingestion spec with a temporary data source.</li> |
| <li>Once you've successfully ingested sample data with the new spec, stop firehose ingestion and switch to the new spec.</li> |
| </ol> |
| <p>When the transition is complete, you can upgrade Druid to the latest version. See the <a href="https://druid.apache.org/downloads.html" target="_blank" rel="noopener noreferrer">Druid release notes</a> for upgrade instructions.</p> |
| <h3 class="anchor anchorWithStickyNavbar_LWe7" id="example-firehose-ingestion-spec">Example firehose ingestion spec<a href="#example-firehose-ingestion-spec" class="hash-link" aria-label="Direct link to Example firehose ingestion spec" title="Direct link to Example firehose ingestion spec"></a></h3> |
| <p>An example firehose ingestion spec is as follows:</p> |
| <div class="language-json codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-json codeBlock_bY9V thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><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 property">"type"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"index"</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 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class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"count"</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 property">"name"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"count"</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 punctuation" 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class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">"fieldName"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"added"</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 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 property">"type"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"doubleSum"</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 property">"name"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"deleted"</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 property">"fieldName"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span 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string" style="color:rgb(195, 232, 141)">"NONE"</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 property">"intervals"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"2013-08-31/2013-09-01"</span><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, 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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><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="example-ingestion-spec-after-migration">Example ingestion spec after migration<a href="#example-ingestion-spec-after-migration" class="hash-link" aria-label="Direct link to Example ingestion spec after migration" title="Direct link to Example ingestion spec after migration"></a></h3> |
| <p>The following example illustrates the result of migrating the <a href="#example-firehose-ingestion-spec">example firehose ingestion spec</a> to a spec with an input source:</p> |
| <div class="language-json codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-json codeBlock_bY9V thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><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 property">"type"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"index"</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 property">"spec"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><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 property">"dataSchema"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><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 property">"dataSource"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"wikipedia"</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 property">"timestampSpec"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><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 property">"column"</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"timestamp"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token 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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 property">"dimensions"</span><span class="token operator" style="color:rgb(137, 221, 255)">:</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">[</span><span class="token string" style="color:rgb(195, 232, 141)">"country"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"page"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token string" style="color:rgb(195, 232, 141)">"language"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token string" style="color:rgb(195, 232, 141)">"user"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span 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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><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="learn-more">Learn more<a href="#learn-more" class="hash-link" aria-label="Direct link to Learn more" title="Direct link to Learn more"></a></h2> |
| <p>For more information, see the following pages:</p> |
| <ul> |
| <li><a href="/docs/latest/ingestion/">Ingestion</a>: Overview of the Druid ingestion process.</li> |
| <li><a href="/docs/latest/ingestion/native-batch">Native batch ingestion</a>: Description of the supported native batch indexing tasks.</li> |
| <li><a href="/docs/latest/ingestion/ingestion-spec">Ingestion spec reference</a>: Description of the components and properties in the ingestion spec.</li> |
| </ul></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/operations/rule-configuration"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Using rules to drop and retain data</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/docs/latest/operations/other-hadoop"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Working with different versions of Apache Hadoop</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="#migrate-from-firehose-ingestion-to-an-input-source" class="table-of-contents__link toc-highlight">Migrate from firehose ingestion to an input source</a><ul><li><a href="#use-the-druid-console" class="table-of-contents__link toc-highlight">Use the Druid console</a></li><li><a href="#update-your-ingestion-spec-manually" class="table-of-contents__link toc-highlight">Update your ingestion spec manually</a></li><li><a href="#example-firehose-ingestion-spec" class="table-of-contents__link toc-highlight">Example firehose ingestion spec</a></li><li><a href="#example-ingestion-spec-after-migration" class="table-of-contents__link toc-highlight">Example ingestion spec after migration</a></li></ul></li><li><a href="#learn-more" class="table-of-contents__link toc-highlight">Learn more</a></li></ul></div></div></div></div></main></div></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="footer__logo themedComponent_mlkZ themedComponent--light_NVdE"><img src="/img/favicon.png" class="footer__logo themedComponent_mlkZ themedComponent--dark_xIcU"></div><div class="footer__copyright">Copyright © 2025 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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