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mjsax merged 1 commit into from
Jul 25, 2023
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MINOR: fix docs markup #14085

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25 changes: 12 additions & 13 deletions docs/ops.html
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Expand Up @@ -3465,21 +3465,20 @@ <h3 class="anchor-heading"><a id="zk" class="anchor-link"></a><a href="#zk">6.9
<h4 class="anchor-heading"><a id="zkversion" class="anchor-link"></a><a href="#zkversion">Stable version</a></h4>
The current stable branch is 3.5. Kafka is regularly updated to include the latest release in the 3.5 series.

<h4 class="anchor-heading"><a href="#zk_depr" class="anchor-link">ZooKeeper Deprecation</a></h4>

<p>With the release of Apache Kafka 3.5, Zookeeper is now marked deprecated. Removal of ZooKeeper is planned in the next major release of Apache Kafka (version 4.0), which is scheduled to happen no sooner than April 2024. During the deprecation phase, ZooKeeper is still supported for metadata management of Kafka clusters, but it is not recommended for new deployments. There is a small subset of features that remain to be implemented in KRaft, see <a href="#kraft_missing" class="anchor-link">current missing features</a> for more information.</p>

<h5 class="anchor-heading"><a href="#zk_depr_migration" class="anchor-link">Migration</a></h5>

<p>Migration of an existing ZooKeeper based Kafka cluster to KRaft is currently Preview and we expect it to be ready for production usage in version 3.6. Users are recommended to begin planning for migration to KRaft and also begin testing to provide any feedback. Refer to <a href="#kraft_zk_migration">ZooKeeper to KRaft Migration</a> for details on how to perform a live migration from ZooKeeper to KRaft and current limitations.</p>

<h5 class="anchor-heading"><a href="#zk_depr_3xsupport" class="anchor-link">3.x and ZooKeeper Support</a></h5>

<p>The final 3.x minor release, that supports ZooKeeper mode, will receive critical bug fixes and security fixes for 12 months after its release.</p>
<h4 class="anchor-heading"><a id="zk_depr" class="anchor-link"></a><a href="#zk_depr">ZooKeeper Deprecation</a></h4>
<p>With the release of Apache Kafka 3.5, Zookeeper is now marked deprecated. Removal of ZooKeeper is planned in the next major release of Apache Kafka (version 4.0),
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@ex172000 ex172000 Jul 25, 2023

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nit: marked as deprecated?

which is scheduled to happen no sooner than April 2024. During the deprecation phase, ZooKeeper is still supported for metadata management of Kafka clusters,
but it is not recommended for new deployments. There is a small subset of features that remain to be implemented in KRaft
see <a href="#kraft_missing">current missing features</a> for more information.</p>

<h5 class="anchor-heading"><a id="zk_depr_migration" class="anchor-link"></a><a href="#zk_drep_migration">Migration</a></h5>
<p>Migration of an existing ZooKeeper based Kafka cluster to KRaft is currently Preview and we expect it to be ready for production usage in version 3.6. Users are recommended to begin planning for migration to KRaft and also begin testing to provide any feedback. Refer to <a href="#kraft_zk_migration">ZooKeeper to KRaft Migration</a> for details on how to perform a live migration from ZooKeeper to KRaft and current limitations.</p>

<h5 class="anchor-heading"><a href="#zk_depr_timeline" class="anchor-link">ZooKeeper and KRaft timeline</a></h5>
<h5 class="anchor-heading"><a id="zk_depr_3xsupport" class="anchor-link"></a><a href="#zk_depr_3xsupport">3.x and ZooKeeper Support</a></h5>
<p>The final 3.x minor release, that supports ZooKeeper mode, will receive critical bug fixes and security fixes for 12 months after its release.</p>

<p>For details and updates on tentative timelines for ZooKeeper removal and planned KRaft feature releases, refer to <a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-833%3A+Mark+KRaft+as+Production+Ready">KIP-833</a>.</p>
<h5 class="anchor-heading"><a id="zk_depr_timeline" class="anchor-link"></a><a href="#zk_depr_timeline">ZooKeeper and KRaft timeline</a></h5>
<p>For details and updates on tentative timelines for ZooKeeper removal and planned KRaft feature releases, refer to <a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-833%3A+Mark+KRaft+as+Production+Ready">KIP-833</a>.</p>

<h4 class="anchor-heading"><a id="zkops" class="anchor-link"></a><a href="#zkops">Operationalizing ZooKeeper</a></h4>
Operationally, we do the following for a healthy ZooKeeper installation:
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1 change: 1 addition & 0 deletions docs/toc.html
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Expand Up @@ -153,6 +153,7 @@
<li><a href="#zk">6.9 ZooKeeper</a>
<ul>
<li><a href="#zkversion">Stable Version</a>
<li><a href="#zk_depr">ZooKeeper Deprecation</a>
<li><a href="#zkops">Operationalization</a>
</ul>
</li>
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