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https://issues.apache.org/jira/browse/YARN-4052?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chang Li updated YARN-4052:
---------------------------
    Attachment: YARN-4052.3.patch

fix the whitespace issue in .3 patch.
[~jlowe], could you help review the latest patch? Thanks!

> Set SO_KEEPALIVE on NM servers
> ------------------------------
>
>                 Key: YARN-4052
>                 URL: https://issues.apache.org/jira/browse/YARN-4052
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.7.1
>            Reporter: Nathan Roberts
>            Assignee: Chang Li
>         Attachments: YARN-4052.2.patch, YARN-4052.3.patch, YARN-4052.patch
>
>
> Shuffle handler does not set SO_KEEPALIVE so we've seen cases where 
> FDs/sockets get stuck in ESTABLISHED state indefinitely because the server 
> did not see the client leave (network cut or otherwise). 



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