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https://issues.apache.org/jira/browse/YARN-8025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16463744#comment-16463744
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Tao Yang commented on YARN-8025:
--------------------------------
Thanks [~cheersyang] for reminding me.
# Make sense to me. We can guaranteed that userLimitPerSchedulingMode is not
null with moving into the lock even if not needed for now.
# Gave a wrong reference before, it should be preComputedAllUserLimit
Will attach v2 patch to fix it.
> UsersManangers#getComputedResourceLimitForActiveUsers throws NPE due to
> preComputedActiveUserLimit is empty
> -----------------------------------------------------------------------------------------------------------
>
> Key: YARN-8025
> URL: https://issues.apache.org/jira/browse/YARN-8025
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Affects Versions: 3.2.0
> Reporter: Jiandan Yang
> Assignee: Tao Yang
> Priority: Major
> Attachments: YARN-8025.001.patch
>
>
> UsersManangers#getComputedResourceLimitForActiveUsers throws NPE when I run
> SLS.
> *preComputedActiveUserLimit* is not put any element in the code.
> {code:java}
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.UsersManager.getComputedResourceLimitForActiveUsers(UsersManager.java:511)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.getResourceLimitForActiveUsers(LeafQueue.java:1576)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.computeUserLimitAndSetHeadroom(LeafQueue.java:1517)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.assignContainers(LeafQueue.java:1190)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.assignContainersToChildQueues(ParentQueue.java:824)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.assignContainers(ParentQueue.java:630)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.allocateOrReserveNewContainers(CapacityScheduler.java:1834)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.allocateOrReserveNewContainers(CapacityScheduler.java:1802)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.allocateContainersOnMultiNodes(CapacityScheduler.java:1925)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.allocateContainersToNode(CapacityScheduler.java:1946)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.scheduleBasedOnNodeLabels(CapacityScheduler.java:732)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler$AsyncScheduleThread.run(CapacityScheduler.java:774)
> {code}
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