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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4845) ClusterStatus.getMaxMemory() and getUsedMemory() exist in MR1 but not MR2
Date Wed, 05 Dec 2012 23:23:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13510896#comment-13510896
] 

Hadoop QA commented on MAPREDUCE-4845:
--------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12556024/MAPREDUCE-4845-branch-1.patch
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3094//console

This message is automatically generated.
                
> ClusterStatus.getMaxMemory() and getUsedMemory() exist in MR1 but not MR2 
> --------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4845
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4845
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: client
>    Affects Versions: 1.1.1, 2.0.2-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: MAPREDUCE-4845-branch-1.patch, MAPREDUCE-4845.patch
>
>
> For backwards compatibility, these methods should exist in both MR1 and MR2.
> Confusingly, these methods return the max memory and used memory of the jobtracker, not
the entire cluster.
> I'd propose to add them to MR2 and return -1, and deprecate them in both MR1 and MR2.
 Alternatively, I could add plumbing to get the resource manager memory stats.

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