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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-577) Name node doesn't always properly recognize health of data node
Date Fri, 28 Aug 2009 18:48:32 GMT

    [ https://issues.apache.org/jira/browse/HDFS-577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748938#action_12748938
] 

Allen Wittenauer commented on HDFS-577:
---------------------------------------

(FWIW, I haven't had a chance to see if this issue impacts the job/task trackers, so in HDFS
this bug goes for now...)

> Name node doesn't always properly recognize health of data node
> ---------------------------------------------------------------
>
>                 Key: HDFS-577
>                 URL: https://issues.apache.org/jira/browse/HDFS-577
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Allen Wittenauer
>
> The one-way communication (data node -> name node) for node health does not guarantee
that the data node is actually healthy.

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