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https://issues.apache.org/jira/browse/BOOKKEEPER-840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14358855#comment-14358855
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Flavio Junqueira commented on BOOKKEEPER-840:
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+1, looks good.
> Deadlock on flushLock on compaction
> -----------------------------------
>
> Key: BOOKKEEPER-840
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-840
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-server
> Reporter: Sijie Guo
> Assignee: Sijie Guo
> Priority: Critical
> Fix For: 4.4.0, 4.3.1
>
> Attachments: BOOKKEEPER-840.path
>
>
> the dead lock happens on entry log rolling and compaction.
> entry log rolling will lock entry logger then lock flushLock.
> compaction waiting for flush, will lock flushLock and then entry logger.
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