caozhiqiang created YARN-11488:
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Summary: Handling CONTAINER_EXPIRED event will throw NEP if the
reservation is removed from node
Key: YARN-11488
URL: https://issues.apache.org/jira/browse/YARN-11488
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Affects Versions: 3.4.0
Reporter: caozhiqiang
Assignee: caozhiqiang
In AbstractYarnScheduler::completeOustandingUpdatesWhichAreReserved(), after
getReservedContainer(), there is a certain possibility that the
reservedContainer is removed by scheduler. It will throw NEP and
resourcemanager would crash like below log.
{code:java}
// code placeholder
2023-05-07 02:04:38,201 FATAL [SchedulerEventDispatcher:Event Processor]
org.apache.hadoop.yarn.event.EventDispatcher: Error in handling event type
CONTAINER_EXPIRED to the Event Dispatcher
java.lang.NullPointerException
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.completeOustandingUpdatesWhichAreReserved(AbstractYarnScheduler.java:725)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.completedContainer(AbstractYarnScheduler.java:686)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1927)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:172)
at
org.apache.hadoop.yarn.event.EventDispatcher$EventProcessor.run(EventDispatcher.java:74)
at java.lang.Thread.run(Thread.java:748)
2023-05-07 02:04:38,201 INFO [SchedulerEventDispatcher:Event Processor]
org.apache.hadoop.yarn.event.EventDispatcher: Exiting, bbye..
{code}
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