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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5519) Change JobClient to use YarnClient to interact with RM
Date Sun, 22 Sep 2013 21:39:03 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13774097#comment-13774097

Jian He commented on MAPREDUCE-5519:

ahh, thanks for clarifying.
Currently, MR JobClient is switching among RM/JHS(if AM not available) and AM to get Job state
and progress, which should be a generic behavior for all types of application Clients. Probably
we can make YarnClient support such functionality that saves user effort from switching back
and forth. Maybe directly creates an AM proxy that if AM not available, internally redirects
to RM or generic AHS for progress and also handles the retry logic.
Updated the title.
> Change JobClient to use YarnClient to interact with RM
> ------------------------------------------------------
>                 Key: MAPREDUCE-5519
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5519
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Jian He

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