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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1505) saveNamespace appears to succeed even if all directories fail to save
Date Tue, 11 Jan 2011 21:47:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12980353#action_12980353
] 

Allen Wittenauer commented on HDFS-1505:
----------------------------------------

> I agree saveNamespace should throw an exception if it fails all to save to any image
directory. 

If that kills the namenode, then no, definitely not.  I'd much rather have the discretion
to schedule the NN shutdown rather than have it just die.  Yes, there is a risk with only
one image being active.  But that should be an ops call, not a dev one.

> saveNamespace appears to succeed even if all directories fail to save
> ---------------------------------------------------------------------
>
>                 Key: HDFS-1505
>                 URL: https://issues.apache.org/jira/browse/HDFS-1505
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.22.0, 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Jakob Homan
>            Priority: Blocker
>             Fix For: 0.22.0
>
>         Attachments: hdfs-1505-test.txt
>
>
> After HDFS-1071, saveNamespace now appears to "succeed" even if all of the individual
directories failed to save.

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