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From "Fei Hui (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6822) should set HADOOP_JOB_HISTORYSERVER_HEAPSIZE only if it's empty on branch2
Date Wed, 14 Dec 2016 02:18:58 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15746973#comment-15746973
] 

Fei Hui commented on MAPREDUCE-6822:
------------------------------------

Thanks [~raviprak]

> should set HADOOP_JOB_HISTORYSERVER_HEAPSIZE only if it's empty on branch2
> --------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6822
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6822
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: scripts
>    Affects Versions: 2.9.0
>            Reporter: Fei Hui
>             Fix For: 2.9.0
>
>         Attachments: HADOOP-13898-branch-2.001.patch, HADOOP-13898-branch-2.002.patch
>
>
> In mapred-env, set HADOOP_JOB_HISTORYSERVER_HEAPSIZE 1000 by default, That is incorrect.
> We should set it 1000 by default only if it's empty. 
> Because if you run  'HADOOP_JOB_HISTORYSERVER_HEAPSIZE =512 $HADOOP_HOME/sbin/mr-jobhistory-daemon.sh
start historyserver', HADOOP_JOB_HISTORYSERVER_HEAPSIZE  will be set 1000, rather than 512.



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