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MINOR: update kraft dynamic voter set doc (#20401) 

Update the KRaft dynamic voter set documentation. In Kafka 4.1, we
introduced a powerful new feature that enables seamless migration from a
static voter set to a dynamic voter set.

Reviewers: Ken Huang <s7133700@gmail.com>, TengYao Chi
<kitingiao@gmail.com>, Chia-Ping Tsai <chia7712@gmail.com>
This commit is contained in:
Kuan-Po Tseng 2025-08-26 01:31:07 +08:00 committed by Chia-Ping Tsai
parent b14efd8750
commit 9575cbbc80
1 changed files with 1 additions and 3 deletions
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@ -4106,11 +4106,9 @@ Feature: metadata.version SupportedMinVersion: 3.3-IV3 SupportedMaxVers
<pre><code class="language-bash">
$ bin/kafka-storage.sh format -t KAFKA_CLUSTER_ID --feature kraft.version=1 -c controller.properties
Cannot set kraft.version to 1 unless KIP-853 configuration is present. Try removing the --feature flag for kraft.version.
</code></pre><p>
Note: Currently it is <b>not</b> possible to convert clusters using a static controller quorum to
use a dynamic controller quorum. This function will be supported in the future release.
Note: To migrate from static voter set to dynamic voter set, please refer to the <a href="#kraft_upgrade">Upgrade</a> section.
<h5 class="anchor-heading"><a id="kraft_reconfig_add" class="anchor-link"></a><a href="#kraft_reconfig_add">Add New Controller</a></h5>
If a dynamic controller cluster already exists, it can be expanded by first provisioning a new controller using the <a href="#kraft_nodes_observers">kafka-storage.sh tool</a> and starting the controller.