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https://issues.apache.org/jira/browse/YARN-10226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Peter Bacsko updated YARN-10226:
--------------------------------
Attachment: (was: YARN-10234-002.patch)
> NPE in Capacity Scheduler while using %primary_group queue mapping
> ------------------------------------------------------------------
>
> Key: YARN-10226
> URL: https://issues.apache.org/jira/browse/YARN-10226
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler
> Reporter: Peter Bacsko
> Assignee: Peter Bacsko
> Priority: Critical
> Fix For: 3.3.0, 3.4.0
>
> Attachments: YARN-10226-001.patch
>
>
> If we use the following queue mapping:
> {{u:%user:%primary_group}}
> then we get a NPE inside ResourceManager:
> {noformat}
> 2020-04-06 11:59:13,883 ERROR resourcemanager.ResourceManager
> (ResourceManager.java:serviceStart(881)) - Failed to load/recover state
> java.lang.NullPointerException
> at
> java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueManager.getQueue(CapacitySchedulerQueueManager.java:138)
> at
> org.apache.hadoop.yarn.server.resourcemanager.placement.UserGroupMappingPlacementRule.getContextForPrimaryGroup(UserGroupMappingPlacementRule.java:163)
> at
> org.apache.hadoop.yarn.server.resourcemanager.placement.UserGroupMappingPlacementRule.getPlacementForUser(UserGroupMappingPlacementRule.java:118)
> at
> org.apache.hadoop.yarn.server.resourcemanager.placement.UserGroupMappingPlacementRule.getPlacementForApp(UserGroupMappingPlacementRule.java:227)
> at
> org.apache.hadoop.yarn.server.resourcemanager.placement.PlacementManager.placeApplication(PlacementManager.java:67)
> at
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.placeApplication(RMAppManager.java:827)
> at
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.createAndPopulateNewRMApp(RMAppManager.java:378)
> at
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recoverApplication(RMAppManager.java:367)
> at
> org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.recover(RMAppManager.java:594)
> ...
> {noformat}
> We to check if parent queue is null in
> {{UserGroupMappingPlacementRule.getContextForPrimaryGroup()}}.
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