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https://issues.apache.org/jira/browse/MAPREDUCE-6703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15292491#comment-15292491
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Jian He commented on MAPREDUCE-6703:
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I see, just few minor comments:
- could you add comments to the newly added config about what this config means
?
- Here, we can just call addOpportunisticResourceRequest and so
addContainerReq method does not need to be refactored.
{code}
maps.put(event.getAttemptID(), request);
addContainerReq(request, ExecutionType.OPPORTUNISTIC);
{code}
> Add flag to allow MapReduce AM to request for OPPORTUNISTIC containers
> ----------------------------------------------------------------------
>
> Key: MAPREDUCE-6703
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6703
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Arun Suresh
> Assignee: Arun Suresh
> Attachments: MAPREDUCE-6703.001.patch
>
>
> YARN-2882 and YARN-4335 introduces the concept of container ExecutionTypes
> and specifically OPPORTUNISTIC containers.
> The default ExecutionType is GUARANTEED. This JIRA proposes to allow users to
> provide hints via config to the MR framework as to the number of containers
> it would like to schedule as OPPORTUNISTIC.
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