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https://issues.apache.org/jira/browse/KAFKA-5787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16142879#comment-16142879
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ASF GitHub Bot commented on KAFKA-5787:
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Github user asfgit closed the pull request at:
https://github.com/apache/kafka/pull/3736
> StoreChangeLogReader needs to restore partitions that were added post
> initialization
> ------------------------------------------------------------------------------------
>
> Key: KAFKA-5787
> URL: https://issues.apache.org/jira/browse/KAFKA-5787
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.11.0.1, 1.0.0
> Reporter: Damian Guy
> Assignee: Damian Guy
> Priority: Blocker
>
> Investigation of {{KStreamRepartitionJoinTest}} failures uncovered this bug.
> If a task fails during initialization due to a {{LockException}}, its
> changelog partitions are not immediately added to the
> {{StoreChangelogReader}} as the thread doesn't hold the lock. However
> {{StoreChangelogReader#restore}} will be called and it sets the initialized
> flag. On a subsequent successfull call to initialize the new tasks the
> partitions are added to the {{StoreChangelogReader}}, however as it is
> already initialized these new partitions will never be restored. So the task
> will remain in a non-running state forever
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