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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5311) Replace SLOTS_MILLIS counters with MEM_MILLIS
Date Tue, 06 Aug 2013 23:31:48 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13731445#comment-13731445
] 

Arun C Murthy commented on MAPREDUCE-5311:
------------------------------------------

To Sandy's point - several folks do use mapred.cluster.(map,reduce).memory.mb, so it will
be a big BC break for them.

Also, what does this mean for BC after we spent all the time fixing MAPREDUCE-5108.
                
> Replace SLOTS_MILLIS counters with MEM_MILLIS
> ---------------------------------------------
>
>                 Key: MAPREDUCE-5311
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5311
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster
>    Affects Versions: 2.0.4-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Sandy Ryza
>            Priority: Blocker
>             Fix For: 2.1.0-beta
>
>         Attachments: MAPREDUCE-5311-1.patch, MAPREDUCE-5311.patch, MAPREDUCE-5311.patch
>
>
> Per discussion in MAPREDUCE-5310 and comments in the code we should remove all the related
logic and just leave the counter constant for backwards compatibility and deprecate the counter
constants.

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