[ 
https://issues.apache.org/jira/browse/YARN-8025?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Eric Payne updated YARN-8025:
-----------------------------
    Environment:     (was: 
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}
)

> 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
>            Reporter: Jiandan Yang 
>            Priority: Major
>




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