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https://issues.apache.org/jira/browse/HADOOP-12464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14948605#comment-14948605
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Steve Loughran commented on HADOOP-12464:
-----------------------------------------
Linking to the issues I've seen with hanging on shutdown. Do these stack traces
match what you've seen?
We could have a test for this BTW: find a free port, create an hdfs client of
hdfs://localhost/$port, try to use it and then try to shut down the FS
> Interrupted client may try to fail-over and retry
> -------------------------------------------------
>
> Key: HADOOP-12464
> URL: https://issues.apache.org/jira/browse/HADOOP-12464
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Reporter: Kihwal Lee
> Attachments: HADOOP-12464.patch
>
>
> When an IPC client is interrupted, it sometimes try to fail-over to a
> different namenode and retry. We've seen this causing hang during shutdown.
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