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Date: Sat, 15 Oct 2011 13:53:13 +0000 (UTC)
From: "Hudson (Commented) (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-3057) Job History Server goes of
 OutOfMemory with 1200 Jobs and Heap Size set to 10 GB
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-3057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13128187#comment-13128187 ] 

Hudson commented on MAPREDUCE-3057:
-----------------------------------

Integrated in Hadoop-Hdfs-trunk #831 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/831/])
    MAPREDUCE-3057. Job History Server goes of OutOfMemory with 1200 Jobs and Heap Size set to 10 GB. (Eric Payne via mahadev)

mahadev : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1183545
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/JobHistory.java

                
> Job History Server goes of OutOfMemory with 1200 Jobs and Heap Size set to 10 GB
> --------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3057
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3057
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobhistoryserver, mrv2
>    Affects Versions: 0.23.0
>            Reporter: Karam Singh
>            Assignee: Eric Payne
>            Priority: Blocker
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-3057.v1.txt
>
>
> History server was started with -Xmx10000m
> Ran GridMix V3 with 1200 Jobs trace in STRESS mode on 350 nodes with each node 4 NMS.
> All jobs finished as reported by RM Web UI and HADOOP_MAPRED_HOME/bin/mapred job -list all
> But found that GridMix job client was stuck while trying connect to HistoryServer
> Then tried to do HADOOP_MAPRED_HOME/bin/mapred job -status jobid
> JobClient also got stuck while looking for token to connect to History server
> Then looked at History Server logs and found History is trowing "java.lang.OutOfMemoryError: GC overhead limit exceeded" error.
> With 10GB of Heap space and 1200 Jobs, History Server should not go out of memory .
> No matter what are the type of jobs.

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