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From "Fei Hui (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13898) should set HADOOP_JOB_HISTORYSERVER_HEAPSIZE only if it's empty on branch2
Date Tue, 13 Dec 2016 07:31:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15744443#comment-15744443
] 

Fei Hui commented on HADOOP-13898:
----------------------------------

cc [~aw] 

> should set HADOOP_JOB_HISTORYSERVER_HEAPSIZE only if it's empty on branch2
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-13898
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13898
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: scripts
>    Affects Versions: 2.9.0
>            Reporter: Fei Hui
>            Assignee: Fei Hui
>         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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