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https://issues.apache.org/jira/browse/KAFKA-6650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jun Rao resolved KAFKA-6650.
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Resolution: Fixed
Fix Version/s: 2.0.0
merged the PR to trunk.
> The controller should be able to handle a partially deleted topic
> -----------------------------------------------------------------
>
> Key: KAFKA-6650
> URL: https://issues.apache.org/jira/browse/KAFKA-6650
> Project: Kafka
> Issue Type: Bug
> Reporter: Lucas Wang
> Assignee: Lucas Wang
> Priority: Minor
> Fix For: 2.0.0
>
>
> A previous controller could have deleted some partitions of a topic from ZK,
> but not all partitions, and then died.
> In that case, the new controller should be able to handle the partially
> deleted topic, and finish the deletion.
> In the current code base, if there is no leadership info for a replica's
> partition, the transition to OfflineReplica state for the replica will fail.
> Afterwards the transition to ReplicaDeletionStarted will fail as well since
> the only valid previous state for ReplicaDeletionStarted is OfflineReplica.
> Furthermore, it means the topic deletion will never finish.
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