ppatierno commented on code in PR #15193:
URL: https://github.com/apache/kafka/pull/15193#discussion_r1452070809
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docs/ops.html:
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@@ -3956,25 +3956,31 @@ <h3>Reverting to ZooKeeper mode During the
Migration</h3>
While the cluster is still in migration mode, it is possible to revert to
ZK mode. In order to do this:
<ol>
<li>
- For each KRaft broker:
+ If you have brokers in KRaft mode, for each one:
<ul>
<li>Stop the broker.</li>
<li>Remove the __cluster_metadata directory on the broker.</li>
- <li>Remove the <code>zookeeper.metadata.migration.enable</code>
configuration and the KRaft controllers related configurations like
<code>controller.quorum.voters</code>
- and <code>controller.listener.names</code> from the broker
configuration properties file.</li>
- <li>Restart the broker in ZooKeeper mode.</li>
+ <li>Reconfigure the broker so that it will restart in ZK mode, by
removing process.roles
+ and re-adding zookeeper.connect, and so forth.</li>
Review Comment:
Isn't this wrong? You can rollback when you are in "dual-write" and in this
state you still have zookeeper.connect and you don't have process.roles yet.
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