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https://issues.apache.org/jira/browse/HDFS-8894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15029472#comment-15029472
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Kanaka Kumar Avvaru commented on HDFS-8894:
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Thanks for review [~andrew.wang]. Sorry for late response, was occupied with
some other priorities. Please review the updated patch.
> Set SO_KEEPALIVE on DN server sockets
> -------------------------------------
>
> Key: HDFS-8894
> URL: https://issues.apache.org/jira/browse/HDFS-8894
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.7.1
> Reporter: Nathan Roberts
> Assignee: Kanaka Kumar Avvaru
> Attachments: HDFS-8894-01.patch, HDFS-8894-01.patch,
> HDFS-8894-02.patch, HDFS-8894-03.patch, HDFS-8894-04.patch
>
>
> SO_KEEPALIVE is not set on things like datastreamer sockets which can cause
> lingering ESTABLISHED sockets when there is a network glitch.
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