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https://issues.apache.org/jira/browse/MAPREDUCE-6304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14546479#comment-14546479
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Naganarasimha G R commented on MAPREDUCE-6304:
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Thanks for replying [~wangda]
bq. Thanks for replying, it's glad to hear such cases are already addressed.
:)
bq. I think that will be problematic if we enable_any_resource_request_only,
now we calculate pending-resource-by-label only for ANY request. I think it's
fine to me to leave behind the node-local/rack-local out of partition issue. MR
job can still get start and running.
I am ok with not adding, but my intention was not to add node-local/rack-local
resource requests at all so that it there are no issues with the ones mentioned
in YARN-2694. Also in small clusters(<50) all are in the same rack i.e. default
rack and suppose i want to run the reducers in the nodes with good HW config
(high mem/fast cpu) then this kind of config might be helpful.
> 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
> Labels: mapreduce
> Attachments: MAPREDUCE-6304.20150410-1.patch,
> MAPREDUCE-6304.20150411-1.patch, MAPREDUCE-6304.20150501-1.patch,
> MAPREDUCE-6304.20150510-1.patch, MAPREDUCE-6304.20150511-1.patch,
> MAPREDUCE-6304.20150512-1.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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