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Posted to mapreduce-issues@hadoop.apache.org by "Hemanth Yamijala (JIRA)" <ji...@apache.org> on 2012/09/11 06:50:07 UTC

[jira] [Commented] (MAPREDUCE-4649) mr-jobhistory-daemon.sh needs to be updated post YARN-1

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13452714#comment-13452714 ] 

Hemanth Yamijala commented on MAPREDUCE-4649:
---------------------------------------------

On this topic, what is the purpose of mr-jobhistory-daemon ? Is it just for starting the history server ? If yes, then should we really pass in the command to start, like:

mr-jobhistory-daemon.sh start historyserver

Can't it just be:

mr-jobhistory-daemon.sh start

and 'historyserver' is passed internally ? 
                
> mr-jobhistory-daemon.sh needs to be updated post YARN-1
> -------------------------------------------------------
>
>                 Key: MAPREDUCE-4649
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4649
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobhistoryserver
>    Affects Versions: 0.23.3, 2.0.2-alpha
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>
> Even today, JHS is assuming that YARN_HOME will be same as HADOOP_MAPRED_HOME besides other such assumptions. We need to fix it.

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