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https://issues.apache.org/jira/browse/HADOOP-10219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14950431#comment-14950431
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Steve Loughran commented on HADOOP-10219:
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+ you may need a check that you aren't trying to interrupt yourself in
{{interruptConnectingThread()}}
> ipc.Client.setupIOstreams() needs to check for ClientCache.stopClient
> requested shutdowns
> ------------------------------------------------------------------------------------------
>
> Key: HADOOP-10219
> URL: https://issues.apache.org/jira/browse/HADOOP-10219
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 2.2.0, 2.6.0
> Reporter: Steve Loughran
> Attachments: HADOOP-10219.patch
>
>
> When {{ClientCache.stopClient()}} is called to stop the IPC client, if the
> client
> is blocked spinning due to a connectivity problem, it does not exit until the
> policy has timed out -so the stopClient() operation can hang for an extended
> period of time.
> This can surface in the shutdown hook of FileSystem.cache.closeAll()
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