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https://issues.apache.org/jira/browse/MAPREDUCE-6304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14514669#comment-14514669
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Wangda Tan commented on MAPREDUCE-6304:
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Hi [~Naganarasimha],
Just took a look at the patch, some comments about syntax:
- Beyond AM/Job node-labels setting, should we support Mapper/Reducer setting?
- When job and AM (or mapper/reducer) set together, AM (or mapper/reducer)'s
node-label-expression should overwrite job's setting.
- If we need support mapper/reducer's node-label-expression. We may need add
some changes in MR AM side and some tests.
Any ideas? [~lohit].
> Specifying node labels when submitting MR jobs
> ----------------------------------------------
>
> Key: MAPREDUCE-6304
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6304
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Reporter: Jian Fang
> Assignee: Naganarasimha G R
> Fix For: 2.8.0
>
> Attachments: MAPREDUCE-6304.20150410-1.patch,
> MAPREDUCE-6304.20150411-1.patch
>
>
> Per the discussion on YARN-796, we need a mechanism in MAPREDUCE to specify
> node labels when submitting MR jobs.
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