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https://issues.apache.org/jira/browse/HBASE-25631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17324978#comment-17324978
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Xiaolin Ha commented on HBASE-25631:
------------------------------------
There is a dead lock between AsyncFSWAL#waitForSafePoint() and
AsyncFSWAL#consume() when calling AsyncFSWAL#doShutdown(). Only consume() can
signal condition of `readyForRollingCond`. This is the jstack logs when the RS
can not exit and holds for hours. [^jst]
> Non-daemon threads make regionserver cannot exit completely
> ------------------------------------------------------------
>
> Key: HBASE-25631
> URL: https://issues.apache.org/jira/browse/HBASE-25631
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 2.0.0, 1.4.7
> Environment:
>
> Reporter: Xiaolin Ha
> Assignee: Xiaolin Ha
> Priority: Major
> Attachments: 1614845335795-image.png, 1614857532776-image.png, jst
>
>
> When regionserver abort by some errors, the process cannot exit completely.
> Error logs and jstack of regionserver process are as follows,
> !1614857532776-image.png|width=823,height=364!
> * !1614845335795-image.png|width=532,height=330!
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