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KAFKA-17146 Include note to remove migration znode (#16770) 

When reverting the ZK migration, we must also remove the /migration ZNode in order to allow the migration to be re-attempted in the future.

Reviewers: Colin P. McCabe <cmccabe@apache.org>, Chia-Ping Tsai <chia7712@gmail.com>
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David Arthur 2024-08-04 15:13:26 -04:00 committed by GitHub
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@ -4108,7 +4108,10 @@ listeners=CONTROLLER://:9093
</li> </li>
<li> <li>
Using <code>zookeeper-shell.sh</code>, run <code>rmr /controller</code> so that one Using <code>zookeeper-shell.sh</code>, run <code>rmr /controller</code> so that one
of the brokers can become the new old-style controller. of the brokers can become the new old-style controller. Additionally, run
<code>get /migration</code> followed by <code>rmr /migration</code> to clear the
migration state from ZooKeeper. This will allow you to re-attempt the migration
in the future. The data read from "/migration" can be useful for debugging.
</li> </li>
<li> <li>
On each broker, remove the <code>zookeeper.metadata.migration.enable</code>, On each broker, remove the <code>zookeeper.metadata.migration.enable</code>,