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https://issues.apache.org/jira/browse/MAPREDUCE-5870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14743154#comment-14743154
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Jian He commented on MAPREDUCE-5870:
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I earlier thought we can keep backward compatible with the enum priority, but
now am thinking the value of doing this. This does bring extra complexity to
support both. [~jlowe], do you know if there are many apps from MR1 are
actually expecting this enum based priority to work ? Since priority is never
supported since hadoop 2 for such a long time, I'm thinking if we can deprecate
the old API and claim only support integers to be simple and clear.
> Support for passing Job priority through Application Submission Context in
> Mapreduce Side
> -----------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5870
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5870
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client
> Reporter: Sunil G
> Assignee: Sunil G
> Attachments: 0001-MAPREDUCE-5870.patch, 0002-MAPREDUCE-5870.patch,
> 0003-MAPREDUCE-5870.patch, 0004-MAPREDUCE-5870.patch,
> 0005-MAPREDUCE-5870.patch, 0006-MAPREDUCE-5870.patch, Yarn-2002.1.patch
>
>
> Job Prioirty can be set from client side as below [Configuration and api].
> a. JobConf.getJobPriority() and
> Job.setPriority(JobPriority priority)
> b. We can also use configuration
> "mapreduce.job.priority".
> Now this Job priority can be passed in Application Submission
> context from Client side.
> Here we can reuse the MRJobConfig.PRIORITY configuration.
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