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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5789) Some of snapshot APIs missing checkOperation double check in fsn
Date Sat, 25 Jan 2014 13:30:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13881866#comment-13881866
] 

Hudson commented on HDFS-5789:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk #1678 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1678/])
HDFS-5789. Some of snapshot APIs missing checkOperation double check in fsn. Contributed by
Uma Maheswara Rao G. (umamahesh: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1560731)
* /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


> Some of snapshot APIs missing checkOperation double check in fsn
> ----------------------------------------------------------------
>
>                 Key: HDFS-5789
>                 URL: https://issues.apache.org/jira/browse/HDFS-5789
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 3.0.0
>            Reporter: Uma Maheswara Rao G
>            Assignee: Uma Maheswara Rao G
>             Fix For: 3.0.0, 2.3.0
>
>         Attachments: HDFS-5789.patch
>
>
> HDFS-4591 introduced double checked for HA state while taking fsn lock.
> checkoperation made before actually taking lock and after the lock again.
> This pattern missed in some of the snapshot APIs and cache management related APIs.



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