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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5164) deleteSnapshot should check if OperationCategory.WRITE is possible before taking write lock
Date Sat, 07 Sep 2013 13:32:57 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13761028#comment-13761028
] 

Hudson commented on HDFS-5164:
------------------------------

SUCCESS: Integrated in Hadoop-Hdfs-trunk #1515 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1515/])
HDFS-5164.  DeleteSnapshot should check if OperationCategory.WRITE is possible before taking
write lock (contributed by Colin Patrick McCabe) (cmccabe: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1520492)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java

                
> deleteSnapshot should check if OperationCategory.WRITE is possible before taking write
lock
> -------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5164
>                 URL: https://issues.apache.org/jira/browse/HDFS-5164
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.3.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>             Fix For: 2.3.0
>
>         Attachments: HDFS-5164.001.patch
>
>
> deleteSnapshot should check if OperationCategory.WRITE is possible before taking the
write lock, to help avoid lock contention

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