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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2507) HA: Allow saveNamespace operations to be canceled
Date Thu, 08 Mar 2012 06:55:10 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13225050#comment-13225050
] 

Hudson commented on HDFS-2507:
------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #1860 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/1860/])
    Moving HDFS-3036, HDFS-3014, HDFS-3003, HDFS-2878, HDFS-208, HDFS-2764, HDFS-2410, HDFS-2285,
HDFS-2507 to 0.23.3 section (Revision 1298274)

     Result = ABORTED
suresh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1298274
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

                
> HA: Allow saveNamespace operations to be canceled
> -------------------------------------------------
>
>                 Key: HDFS-2507
>                 URL: https://issues.apache.org/jira/browse/HDFS-2507
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: HA branch (HDFS-1623), 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: HA branch (HDFS-1623), 0.24.0, 0.23.3
>
>         Attachments: hdfs-2507.txt
>
>
> For HDFS-2291 (checkpointing in HA setup) we need to allow the StandbyNode to handle
a failover while it may be in the middle of saving a checkpoint. This implies that checkpoints
need to be abortable.
> This JIRA is to implement this functionality. Even though this is only needed for HA,
I think we should do the infrastructure in trunk to simplify future merges.

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