diff --git a/docs/ops.html b/docs/ops.html index 6a2de5f68b898..e8309187a5686 100644 --- a/docs/ops.html +++ b/docs/ops.html @@ -3731,10 +3731,7 @@

ZooKeeper Deprecation

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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 current missing features for more information.

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ZooKeeper mode was deprecated in Apache Kafka 3.5. Apache Kafka version 4.0 removed support for ZooKeeper mode.

Migration

Users are recommended to begin planning for migration to KRaft and also begin testing to provide any feedback. Refer to ZooKeeper to KRaft Migration for details on how to perform a live migration from ZooKeeper to KRaft and current limitations.

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The Kafka controllers store all the metadata for the cluster in memory and on disk. We believe that for a typical Kafka cluster 5GB of main memory and 5GB of disk space on the metadata log director is sufficient. -

Missing Features

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The following features are not fully implemented in KRaft mode:

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ZooKeeper to KRaft Migration

Terminology

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Limitations

Brokers with broken log directories will only be able to migrate to KRaft once the directories are repaired. For further details refer to KAFKA-16431. -
  • As noted above, some features are not fully implemented in KRaft mode. If you are - using one of those features, you will not be able to migrate to KRaft yet.
  • There is a known inconsistency between ZK and KRaft modes in the arguments passed to an AlterConfigPolicy, when an OpType.SUBTRACT is processed. diff --git a/docs/toc.html b/docs/toc.html index c05de6d17f0e2..f203974dc085c 100644 --- a/docs/toc.html +++ b/docs/toc.html @@ -175,7 +175,6 @@
  • Storage Tool
  • Debugging
  • Deploying Considerations -
  • Missing Features
  • ZooKeeper to KRaft Migration