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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5514) FSNamesystem's fsLock should allow custom implementation
Date Fri, 06 Dec 2013 11:02:02 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13841183#comment-13841183
] 

Hudson commented on HDFS-5514:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk #413 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/413/])
Neglected to add new file in HDFS-5514 (daryn) (daryn: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1548167)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystemLock.java
HDFS-5514. FSNamesystem's fsLock should allow custom implementation (daryn) (daryn: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1548161)
* /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
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSNamesystem.java


> FSNamesystem's fsLock should allow custom implementation
> --------------------------------------------------------
>
>                 Key: HDFS-5514
>                 URL: https://issues.apache.org/jira/browse/HDFS-5514
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>             Fix For: 3.0.0, 2.4.0
>
>         Attachments: HDFS-5514.patch, HDFS-5514.patch
>
>
> Changing {{fsLock}} from a {{ReentrantReadWriteLock}} to an API compatible class that
encapsulates the rwLock will allow for more sophisticated locking implementations such as
fine grain locking.



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