ResourceManager NPE while handling NODE_UPDATE
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Key: MAPREDUCE-4144
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4144
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Reporter: Jason Lowe
Priority: Critical
The RM on one of our clusters has exited twice in the past few days because of
an NPE while trying to handle a NODE_UPDATE:
{noformat}
2012-04-12 02:09:01,672 FATAL
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in
handling event type NODE_UPDATE to the scheduler
[ResourceManager Event Processor]java.lang.NullPointerException
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.AppSchedulingInfo.allocateNodeLocal(AppSchedulingInfo.java:261)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.AppSchedulingInfo.allocate(AppSchedulingInfo.java:223)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApp.allocate(SchedulerApp.java:246)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.assignContainer(LeafQueue.java:1229)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.assignNodeLocalContainers(LeafQueue.java:1078)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.assignContainersOnNode(LeafQueue.java:1048)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.assignReservedContainer(LeafQueue.java:859)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.assignContainers(LeafQueue.java:756)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.nodeUpdate(CapacityScheduler.java:573)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:622)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:78)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:302)
at java.lang.Thread.run(Thread.java:619)
{noformat}
This is very similar to the failure reported in MAPREDUCE-3005.
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