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From "Robert Kanter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6765) MR should not schedule container requests in cases where reducer or mapper containers demand resource larger than the maximum supported
Date Tue, 27 Sep 2016 00:28:20 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15524609#comment-15524609
] 

Robert Kanter commented on MAPREDUCE-6765:
------------------------------------------

It overall looks good to me. But is there anyway to reduce the amount of duplicate code? The
{{handleMapContainerRequest}} and {{handleReduceContainerRequest}} methods are very similar.

> MR should not schedule container requests in cases where reducer or mapper containers
demand resource larger than the maximum supported
> ---------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6765
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6765
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mr-am
>    Affects Versions: 2.7.2
>            Reporter: Haibo Chen
>            Assignee: Haibo Chen
>            Priority: Minor
>             Fix For: 2.9.0
>
>         Attachments: mapreduce6765.001.patch, mapreduce6765.002.patch, mapreduce6765.003.patch,
mapreduce6765.004.patch
>
>
> When mapper or reducer containers request resource larger than the maxResourceRequest
in the cluster, job is to be killed. In such cases, it is unnecessary to still schedule container
requests.  



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