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https://issues.apache.org/jira/browse/KAFKA-4735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15855007#comment-15855007
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ASF GitHub Bot commented on KAFKA-4735:
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Github user asfgit closed the pull request at:
https://github.com/apache/kafka/pull/2504
> Fix deadlock issue during MM shutdown
> -------------------------------------
>
> Key: KAFKA-4735
> URL: https://issues.apache.org/jira/browse/KAFKA-4735
> Project: Kafka
> Issue Type: Bug
> Reporter: Dong Lin
> Assignee: Dong Lin
>
> In https://issues.apache.org/jira/browse/KAFKA-4521 we fixed a potential
> message reorder bug in MM. However, the patch introduced another bug that can
> cause deadlock during MM shutdown. The deadlock will happen if zookeeper
> listener thread call requestAndWaitForCommit() after MirrorMaker thread has
> already exited loop of consuming and producing messages.
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