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role="alert"><div>This is documentation for <!-- -->Apache Hudi<!-- --> <b>0.12.2</b>, which is no longer actively maintained.</div><div class="margin-top--md">For up-to-date documentation, see the <b><a href="/docs/overview">latest version</a></b> (<!-- -->0.14.1<!-- -->).</div></div><div class="docItemContainer_oiyr"><article><span class="theme-doc-version-badge badge badge--secondary">Version: <!-- -->0.12.2</span><div class="tocCollapsible_aw-L theme-doc-toc-mobile tocMobile_Tx6Y"><button type="button" class="clean-btn tocCollapsibleButton_zr6a">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Query Engine Setup</h1></header><h2 class="anchor anchorWithStickyNavbar_y2LR" id="spark">Spark<a class="hash-link" href="#spark" title="Direct link to heading"></a></h2><p>The Spark Datasource API is a popular way of authoring Spark ETL pipelines. Hudi tables can be queried via the Spark datasource with a simple <code>spark.read.parquet</code>. |
| See the <a href="/docs/quick-start-guide">Spark Quick Start</a> for more examples of Spark datasource reading queries.</p><p>If your Spark environment does not have the Hudi jars installed, add <code>--jars <path to jar>/hudi-spark-bundle_2.11-<hudi version>.jar</code> to the classpath of drivers |
| and executors. Alternatively, hudi-spark-bundle can also fetched via the <code>--packages</code> options (e.g: <code>--packages org.apache.hudi:hudi-spark-bundle_2.11:0.5.3</code>).</p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="prestodb">PrestoDB<a class="hash-link" href="#prestodb" title="Direct link to heading"></a></h2><p>PrestoDB is a popular query engine, providing interactive query performance. |
| One can use both Hive or Hudi connector (Presto version 0.275 onwards) for querying Hudi tables. |
| Both connectors currently support snapshot querying on COPY_ON_WRITE tables, and |
| snapshot and read optimized queries on MERGE_ON_READ Hudi tables. </p><p>Since PrestoDB-Hudi integration has evolved over time, the installation |
| instructions for PrestoDB would vary based on versions. |
| Please check the below table for query types supported and installation instructions |
| for different versions of PrestoDB.</p><table><thead><tr><th><strong>PrestoDB Version</strong></th><th><strong>Installation description</strong></th><th><strong>Query types supported</strong></th></tr></thead><tbody><tr><td>< 0.233</td><td>Requires the <code>hudi-presto-bundle</code> jar to be placed into <code><presto_install>/plugin/hive-hadoop2/</code>, across the installation.</td><td>Snapshot querying on COW tables. Read optimized querying on MOR tables.</td></tr><tr><td>>= 0.233</td><td>No action needed. Hudi (0.5.1-incubating) is a compile time dependency.</td><td>Snapshot querying on COW tables. Read optimized querying on MOR tables.</td></tr><tr><td>>= 0.240</td><td>No action needed. Hudi 0.5.3 version is a compile time dependency.</td><td>Snapshot querying on both COW and MOR tables.</td></tr><tr><td>>= 0.268</td><td>No action needed. Hudi 0.9.0 version is a compile time dependency.</td><td>Snapshot querying on bootstrap tables.</td></tr><tr><td>>= 0.272</td><td>No action needed. Hudi 0.10.1 version is a compile time dependency.</td><td>File listing optimizations. Improved query performance.</td></tr><tr><td>>= 0.275</td><td>No action needed. Hudi 0.11.0 version is a compile time dependency.</td><td>All of the above. Native Hudi connector that is on par with Hive connector.</td></tr></tbody></table><p>To learn more about the usage of Hudi connector, please checkout <a href="https://prestodb.io/docs/current/connector/hudi.html" target="_blank" rel="noopener noreferrer">prestodb documentation</a>.</p><div class="admonition admonition-note alert alert--secondary"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="16" viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>note</h5></div><div class="admonition-content"><p>Incremental queries and point in time queries are not supported either through the Hive connector or Hudi connector. |
| However, it is in our roadmap and you can track the development under <a href="https://issues.apache.org/jira/browse/HUDI-3210" target="_blank" rel="noopener noreferrer">HUDI-3210</a>.</p><p>There is a known issue (<a href="https://issues.apache.org/jira/browse/HUDI-4290" target="_blank" rel="noopener noreferrer">HUDI-4290</a>) for a clustered Hudi table. Presto query using version 0.272 or later |
| may contain duplicates in results if clustering is enabled. This issue has been fixed in Hudi version 0.12.0 and we need to upgrade <code>hudi-presto-bundle</code> |
| in presto to version 0.12.0. It is tracked in <a href="https://issues.apache.org/jira/browse/HUDI-4605" target="_blank" rel="noopener noreferrer">HUDI-4605</a>.</p></div></div><h3 class="anchor anchorWithStickyNavbar_y2LR" id="presto-environment">Presto Environment<a class="hash-link" href="#presto-environment" title="Direct link to heading"></a></h3><ol><li>Configure Presto according to the <a href="https://prestodb.io/docs/current/installation/deployment.html" target="_blank" rel="noopener noreferrer">Presto configuration document</a>.</li><li>Configure hive catalog in <code> /presto-server-0.2xxx/etc/catalog/hive.properties</code> as follows:</li></ol><div class="codeBlockContainer_J+bg language-properties theme-code-block"><div class="codeBlockContent_csEI properties"><pre tabindex="0" class="prism-code language-properties codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">connector.name=hive-hadoop2</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">hive.metastore.uri=thrift://xxx.xxx.xxx.xxx:9083</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">hive.config.resources=.../hadoop-2.x/etc/hadoop/core-site.xml,.../hadoop-2.x/etc/hadoop/hdfs-site.xml</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><ol start="3"><li>Alternatively, configure hudi catalog in <code> /presto-server-0.2xxx/etc/catalog/hudi.properties</code> as follows:</li></ol><div class="codeBlockContainer_J+bg language-properties theme-code-block"><div class="codeBlockContent_csEI properties"><pre tabindex="0" class="prism-code language-properties codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">connector.name=hudi</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">hive.metastore.uri=thrift://xxx.xxx.xxx.xxx:9083</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">hive.config.resources=.../hadoop-2.x/etc/hadoop/core-site.xml,.../hadoop-2.x/etc/hadoop/hdfs-site.xml</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><h3 class="anchor anchorWithStickyNavbar_y2LR" id="query">Query<a class="hash-link" href="#query" title="Direct link to heading"></a></h3><p>Beginning query by connecting hive metastore with presto client. The presto client connection command is as follows:</p><div class="codeBlockContainer_J+bg language-bash theme-code-block"><div class="codeBlockContent_csEI bash"><pre tabindex="0" class="prism-code language-bash codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token comment" style="color:rgb(98, 114, 164)"># The presto client connection command where <catalog_name> is either hudi or hive,</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)"># and <schema_name> is the database name used in hive sync.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">./presto --server xxx.xxx.xxx.xxx:9999 --catalog </span><span class="token operator"><</span><span class="token plain">catalog_name</span><span class="token operator">></span><span class="token plain"> --schema </span><span class="token operator"><</span><span class="token plain">schema_name</span><span class="token operator">></span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><h2 class="anchor anchorWithStickyNavbar_y2LR" id="trino">Trino<a class="hash-link" href="#trino" title="Direct link to heading"></a></h2><p>Just like PrestoDB, there are two ways to query Hudi tables using Trino i.e. either using <a href="https://trino.io/docs/current/connector/hive.html" target="_blank" rel="noopener noreferrer">Hive</a> connector or the native |
| <a href="https://trino.io/docs/current/connector/hudi.html" target="_blank" rel="noopener noreferrer">Hudi</a> connector (available since version 398). However, since version 411, Hive connector redirects to Hudi catalog for reading Hudi tables.</p><h3 class="anchor anchorWithStickyNavbar_y2LR" id="hive-connector">Hive Connector<a class="hash-link" href="#hive-connector" title="Direct link to heading"></a></h3><table><thead><tr><th><strong>Trino Version</strong></th><th><strong>Installation description</strong></th><th><strong>Query types supported</strong></th></tr></thead><tbody><tr><td>< 406</td><td>Requires the <code>hudi-trino-bundle</code> jar to be placed into <code><trino_install>/plugin/hive</code></td><td>Snapshot querying on COW tables. Read optimized querying on MOR tables.</td></tr><tr><td>> = 406</td><td>Requires the <code>hudi-trino-bundle</code> jar to be placed into <code><trino_install>/plugin/hive</code></td><td>Snapshot querying on COW tables. Read optimized querying on MOR tables. <strong>Redirection to Hudi catalog also supported.</strong></td></tr><tr><td>> = 411</td><td>NA</td><td>Snapshot querying on COW tables. Read optimized querying on MOR tables. Hudi tables can be <strong>only</strong> queried by <a href="https://trino.io/docs/current/connector/hive.html#table-redirection" target="_blank" rel="noopener noreferrer">table redirection</a>.</td></tr></tbody></table><p>If you are using Trino version 411 or greater, and also using Hive connector to query Hudi tables, please set the below config to support table redirection.</p><div class="codeBlockContainer_J+bg theme-code-block"><div class="codeBlockContent_csEI"><pre tabindex="0" class="prism-code language-undefined codeBlock_rtdJ thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_1zSZ"><span class="token-line" style="color:#F8F8F2"><span class="token plain">hive.hudi-catalog-name=hudi</span><br></span></code></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_M3SB clean-btn">Copy</button></div></div><p>It is recommended to use <code>hudi-trino-bundle</code> version 0.12.2 or later for optimal query performance with Hive connector.</p><h3 class="anchor anchorWithStickyNavbar_y2LR" id="hudi-connector">Hudi Connector<a class="hash-link" href="#hudi-connector" title="Direct link to heading"></a></h3><table><thead><tr><th><strong>Trino Version</strong></th><th><strong>Installation description</strong></th><th><strong>Query types supported</strong></th></tr></thead><tbody><tr><td>< 398</td><td>NA - can only use Hive connector to query Hudi tables</td><td>Same as that of Hive connector version < 406.</td></tr><tr><td>> = 398</td><td>NA - no need to place bundle jars manually, as they are compile-time dependency</td><td>Snapshot querying on COW tables. Read optimized querying on MOR tables.</td></tr></tbody></table><p>To learn more about the usage of Hudi connector, please check out |
| the <a href="https://trino.io/docs/current/connector/hudi.html" target="_blank" rel="noopener noreferrer">connector documentation</a>. Both the connectors are on par in |
| terms of query support, i.e. 'Snapshot' queries for COW tables and 'Read Optimized' queries for MOR |
| tables. We have an active <a href="https://github.com/trinodb/trino/pull/16034" target="_blank" rel="noopener noreferrer">PR</a> under review to bring the performance of |
| Hudi connector on par with Hive connector. Furthermore, we |
| expect <a href="https://github.com/trinodb/trino/pull/14786" target="_blank" rel="noopener noreferrer">MOR table snapshot query</a> support will soon be added to the Hudi |
| connector.</p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="hive">Hive<a class="hash-link" href="#hive" title="Direct link to heading"></a></h2><p>In order for Hive to recognize Hudi tables and query correctly,</p><ul><li>the HiveServer2 needs to be provided with the <code>hudi-hadoop-mr-bundle-x.y.z-SNAPSHOT.jar</code> in its <a href="https://www.cloudera.com/documentation/enterprise/5-6-x/topics/cm_mc_hive_udf.html#concept_nc3_mms_lr" target="_blank" rel="noopener noreferrer">aux jars path</a>. This will ensure the input format |
| classes with its dependencies are available for query planning & execution.</li><li>For MERGE_ON_READ tables, additionally the bundle needs to be put on the hadoop/hive installation across the cluster, so that queries can pick up the custom RecordReader as well.</li></ul><p>In addition to setup above, for beeline cli access, the <code>hive.input.format</code> variable needs to be set to the fully qualified path name of the |
| inputformat <code>org.apache.hudi.hadoop.HoodieParquetInputFormat</code>. For Tez, additionally the <code>hive.tez.input.format</code> needs to be set |
| to <code>org.apache.hadoop.hive.ql.io.HiveInputFormat</code>. Then proceed to query the table like any other Hive table.</p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="redshift-spectrum">Redshift Spectrum<a class="hash-link" href="#redshift-spectrum" title="Direct link to heading"></a></h2><p>Copy on Write Tables in Apache Hudi versions 0.5.2, 0.6.0, 0.7.0, 0.8.0, 0.9.0, 0.10.x, 0.11.x and 0.12.x can be queried via Amazon Redshift Spectrum external tables. |
| To be able to query Hudi versions 0.10.0 and above please try latest versions of Redshift.</p><div class="admonition admonition-note alert alert--secondary"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="16" viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>note</h5></div><div class="admonition-content"><p>Hudi tables are supported only when AWS Glue Data Catalog is used. It's not supported when you use an Apache Hive metastore as the external catalog.</p></div></div><p>Please refer to <a href="https://docs.aws.amazon.com/redshift/latest/dg/c-spectrum-external-tables.html#c-spectrum-column-mapping-hudi" target="_blank" rel="noopener noreferrer">Redshift Spectrum Integration with Apache Hudi</a> |
| for more details.</p><h2 class="anchor anchorWithStickyNavbar_y2LR" id="doris">Doris<a class="hash-link" href="#doris" title="Direct link to heading"></a></h2><p>Copy on Write Tables in Hudi version 0.10.0 can be queried via Doris external tables starting from Doris version 1.1. |
| Please refer to <a href="https://doris.apache.org/docs/ecosystem/external-table/hudi-external-table/" target="_blank" rel="noopener noreferrer">Doris Hudi external table</a> |
| for more details on the setup. </p><div class="admonition admonition-note alert alert--secondary"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="14" height="16" viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>note</h5></div><div class="admonition-content"><p>The current default supported version of Hudi is 0.10.0 and has not been tested in other versions. More versions will be supported in the future.</p></div></div><h2 class="anchor anchorWithStickyNavbar_y2LR" id="starrocks">StarRocks<a class="hash-link" href="#starrocks" title="Direct link to heading"></a></h2><p>For Copy-on-Write tables StarRocks provides support for Snapshot queries and for Merge-on-Read tables, StarRocks provides support for Snapshot and Read Optimized queries. |
| Please refer <a href="https://docs.starrocks.io/docs/data_source/catalog/hudi_catalog/" target="_blank" rel="noopener noreferrer">StarRocks docs</a> for more details.</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/hudi/tree/asf-site/website/versioned_docs/version-0.12.2/query_engine_setup.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_mS5F" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_mt2f"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><div class="pagination-nav__item"><a class="pagination-nav__link" href="/docs/0.12.2/configurations"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">All Configurations</div></a></div><div class="pagination-nav__item pagination-nav__item--next"><a class="pagination-nav__link" href="/docs/0.12.2/performance"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Performance</div></a></div></nav></div></div><div class="col col--3"><div class="tableOfContents_vrFS thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#spark" class="table-of-contents__link toc-highlight">Spark</a></li><li><a href="#prestodb" class="table-of-contents__link toc-highlight">PrestoDB</a><ul><li><a href="#presto-environment" class="table-of-contents__link toc-highlight">Presto Environment</a></li><li><a href="#query" class="table-of-contents__link toc-highlight">Query</a></li></ul></li><li><a href="#trino" class="table-of-contents__link 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