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https://issues.apache.org/jira/browse/MAPREDUCE-2788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13127982#comment-13127982
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Ahmed Radwan commented on MAPREDUCE-2788:
-----------------------------------------
Yes CS.allocate() already calls normalizeRequests(..), no need to change
anything there. But the call scenario described in my previous comment is the
one causing the problem, not CS.allocate(..), it is the CS.addApplication(..).
The latest patch fix to CS.addApplication(..) to also normalize requests is the
one required. What do you think?
> LeafQueue.assignContainer() can cause a crash if
> request.getCapability().getMemory() == 0
> -----------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2788
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2788
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Reporter: Ahmed Radwan
> Assignee: Ahmed Radwan
> Priority: Critical
> Attachments: MAPREDUCE-2788.patch, MAPREDUCE-2788_rev2.patch,
> MAPREDUCE-2788_rev3.patch
>
>
> The assignContainer() method in
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue
> can cause the scheduler to crash if the ResourseRequest capability memory ==
> 0 (divide by zero).
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