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https://issues.apache.org/jira/browse/HADOOP-11295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14325606#comment-14325606
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Tsuyoshi OZAWA commented on HADOOP-11295:
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[~kihwal] cc: [~ajisakaa] I checked this JIRA, and you did +1 for branch-2
commit. I cherry-picked from the commit
685af8a3d0504724fe588daf3722519fedc45b01 to branch-2 since it causes conflicts
of other commits. Please revert it if you find a problem.
> RPC Server Reader thread can't shutdown if RPCCallQueue is full
> ---------------------------------------------------------------
>
> Key: HADOOP-11295
> URL: https://issues.apache.org/jira/browse/HADOOP-11295
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Ming Ma
> Assignee: Ming Ma
> Fix For: 2.7.0
>
> Attachments: HADOOP-11295-2.patch, HADOOP-11295-3.patch,
> HADOOP-11295-4.patch, HADOOP-11295-5.patch, HADOOP-11295.006.patch,
> HADOOP-11295.patch
>
>
> If RPC server is asked to stop when RPCCallQueue is full, {{reader.join()}}
> will just wait there. That is because
> 1. The reader thread is blocked on {{callQueue.put(call);}}.
> 2. When RPC server is asked to stop, it will interrupt all handler threads
> and thus no threads will drain the callQueue.
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