David Arthur created KAFKA-16463:
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Summary: Automatically delete metadata log directory on ZK brokers
Key: KAFKA-16463
URL: https://issues.apache.org/jira/browse/KAFKA-16463
Project: Kafka
Issue Type: Improvement
Reporter: David Arthur
Assignee: David Arthur
Fix For: 3.8.0
Throughout the process of a ZK to KRaft migration, the operator has the choice
to revert back to ZK mode. Once this is done, there will be a copy of the
metadata log on each broker in the cluster.
In order to re-attempt the migration in the future, this metadata log needs to
be deleted. This can be pretty burdensome to the operator for large clusters.
To improve this, we can automatically delete any metadata log present during
startup of a ZK broker. This is safe to do because the ZK broker will just
re-replicate the metadata log from the active controller.
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