David Arthur created KAFKA-15605:
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Summary: Topic marked for deletion are incorrectly migrated to
KRaft
Key: KAFKA-15605
URL: https://issues.apache.org/jira/browse/KAFKA-15605
Project: Kafka
Issue Type: Bug
Components: controller, kraft
Affects Versions: 3.6.0
Reporter: David Arthur
Fix For: 3.6.1
When migrating topics from ZooKeeper, the KRaft controller reads all the topic
and partition metadata from ZK directly. This includes topics which have been
marked for deletion by the ZK controller.
Since the client request to delete these topics has already been returned as
successful, it would be confusing to the client that the topic still existed.
An operator or application would need to issue another topic deletion to remove
these topics once the controller had moved to KRaft. If they tried to create a
new topic with the same name, they would receive a TOPIC_ALREADY_EXISTS error.
The migration logic should carry over pending topic deletions and resolve them
either as part of the migration or shortly after.
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