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https://issues.apache.org/jira/browse/HBASE-8873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13715803#comment-13715803
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Lars Hofhansl commented on HBASE-8873:
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Why would this be a 0.94 issue only? I see the same synchronization missing in
trunk (it just more complicated in trunk because of the compaction policies).
Also, it seems there are other places were we miss synchronization:
exploringCompactionSelection, completeCompaction, compactionSelection,
> minor concurrent issue about filesCompacting
> --------------------------------------------
>
> Key: HBASE-8873
> URL: https://issues.apache.org/jira/browse/HBASE-8873
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.95.1, 0.94.9
> Reporter: Liang Xie
> Assignee: Liang Xie
> Attachments: HBase-8873-0.94.txt
>
>
> i am reading compaction code, seems there's a minor thread-safe issue on
> filesCompacting in both 0.94 and trunk, we guard it with synchronized/lock,
> except needsCompaction() function. and the fix should sth like this:
> synchronized (filesCompacting) {
> ...
> }
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