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