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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4676) TestHDFSFileSystemContract should set MiniDFSCluster variable to null to free up memory
Date Wed, 10 Apr 2013 14:08:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13627815#comment-13627815
] 

Hudson commented on HDFS-4676:
------------------------------

Integrated in Hadoop-Mapreduce-trunk #1395 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1395/])
    HDFS-4676. TestHDFSFileSystemContract should set MiniDFSCluster variable to null to free
up memory. Contributed by Suresh Srinivas. (Revision 1466099)

     Result = SUCCESS
suresh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1466099
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestHDFSFileSystemContract.java

                
> TestHDFSFileSystemContract should set MiniDFSCluster variable to null to free up memory
> ---------------------------------------------------------------------------------------
>
>                 Key: HDFS-4676
>                 URL: https://issues.apache.org/jira/browse/HDFS-4676
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>            Priority: Minor
>             Fix For: 2.0.5-beta
>
>         Attachments: HDFS-4676.patch
>
>
> TestHDFSFileSystemContract should reset the cluster member to null in order to  make
garbage collection quickly collect large chunk of memory associated with MiniDFSCluster. This
avoids OutOfMemory errors.
> See https://issues.apache.org/jira/browse/HDFS-4434?focusedCommentId=13624246&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13624246
and the next jenkins tests where the OOM was fixed.

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