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From "Brandon Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6569) OOB message can't be sent to the client when DataNode shuts down for upgrade
Date Fri, 15 Aug 2014 23:44:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14099355#comment-14099355
] 

Brandon Li commented on HDFS-6569:
----------------------------------

Thank you, Kihwal, for the review. I've created HDFS-6856 to track the effort of sending OOB
ack asynchronously.
Uploaded a new patch to not send OOB twice.

> 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: Brandon Li
>         Attachments: HDFS-6569.001.patch, HDFS-6569.002.patch, HDFS-6569.003.patch, 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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