Sunil G created YARN-1980:
-----------------------------
Summary: Possible NPE in KillAMPreemptionPolicy related to
ProportionalCapacityPreemptionPolicy
Key: YARN-1980
URL: https://issues.apache.org/jira/browse/YARN-1980
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Affects Versions: 2.3.0
Reporter: Sunil G
I configured KillAMPreemptionPolicy for My Application Master and tried to
check preemption of queues.
In one scenario I have seen below NPE in my AM
014-04-24 15:11:08,860 ERROR [RMCommunicator Allocator]
org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator: ERROR IN CONTACTING
RM.
java.lang.NullPointerException
at
org.apache.hadoop.mapreduce.v2.app.rm.preemption.KillAMPreemptionPolicy.preempt(KillAMPreemptionPolicy.java:57)
at
org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.getResources(RMContainerAllocator.java:662)
at
org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.heartbeat(RMContainerAllocator.java:246)
at
org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator$1.run(RMCommunicator.java:267)
at java.lang.Thread.run(Thread.java:662)
I was using 2.2.0 and merged MAPREDUCE-5189 to see how AM preemption works.
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