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https://issues.apache.org/jira/browse/YARN-3977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641178#comment-14641178
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Wangda Tan commented on YARN-3977:
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[~curino],
The loop is to apply parameters such as {{naturalTerminationFactor}} to
per-queue-per-partition before doing preemption. And the implementation assumes
TempQueuePerPartition.leafQueue under same LeafQueue is same. I guess maybe the
problem is caused by PlanQueue implementation (I guess you're doing tests for
reservation system). TempQueuePerPartition.leafQueue will only be set if it's a
LeafQueue (search for {{TempQueuePerPartition#setLeafQueue}}).
Thoughts?
> NPE in ProportionalCapacityPreemptionPolicy
> -------------------------------------------
>
> Key: YARN-3977
> URL: https://issues.apache.org/jira/browse/YARN-3977
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Carlo Curino
>
> There seems to be an NPE in the ProportionalCapacityPreemptionPolicy near
> 643, likely due to getQueuePartitions() returning a null.
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