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https://issues.apache.org/jira/browse/HDFS-6569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14058836#comment-14058836
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Kihwal Lee commented on HDFS-6569:
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Sorry for the delay. I looked at the patch and the approach is similar to what
I was thinking. I will work on it today.
> OOB message can't be sent to the client when DataNode shuts down for upgrade
> ----------------------------------------------------------------------------
>
> Key: HDFS-6569
> URL: https://issues.apache.org/jira/browse/HDFS-6569
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 3.0.0, 2.4.0
> Reporter: Brandon Li
> Assignee: Kihwal Lee
> Attachments: test-hdfs-6569.patch
>
>
> The socket is closed too early before the OOB message can be sent to client,
> which causes the write pipeline failure.
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