[YARN-9165] NPE which is similar to YARN-5918

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Duplicate
• Assignee: lujie
• Reporter: lujie
• Created: 31/Dec/18 14:44
• Updated: 03/Jan/19 08:49
• Resolved: 03/Jan/19 08:49

Description

2018-12-31 22:30:06,681 WARN org.apache.hadoop.ipc.Server: IPC Server handler 2 on default port 8030, call Call#23 Retry#0 org.apache.hadoop.yarn.api.ApplicationMasterProtocolPB.allocate from 10.3.1.15:52796
java.lang.NullPointerException
at org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils.createOpportunisticRmContainer(SchedulerUtils.java:576)
at org.apache.hadoop.yarn.server.resourcemanager.OpportunisticContainerAllocatorAMService.handleNewContainers(OpportunisticContainerAllocatorAMService.java:349)
at org.apache.hadoop.yarn.server.resourcemanager.OpportunisticContainerAllocatorAMService.access$100(OpportunisticContainerAllocatorAMService.java:94)
at org.apache.hadoop.yarn.server.resourcemanager.OpportunisticContainerAllocatorAMService$OpportunisticAMSProcessor.allocate(OpportunisticContainerAllocatorAMService.java:197)
at org.apache.hadoop.yarn.server.resourcemanager.AMSProcessingChain.allocate(AMSProcessingChain.java:92)
at org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService.allocate(ApplicationMasterService.java:424)
at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationMasterProtocolPBServiceImpl.allocate(ApplicationMasterProtocolPBServiceImpl.java:60)
at org.apache.hadoop.yarn.proto.ApplicationMasterProtocol$ApplicationMasterProtocolService$2.callBlockingMethod(ApplicationMasterProtocol.java:99)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:530)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1070)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:943)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:878)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1876)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2830)

this bug also happens in the latest trunk!

workload is 

$HADOOP_HOME/bin/hadoop jar $HADOOP_HOME/share/hadoop/mapreduce/hadoop-mapreduce-examples-$VERSION.jar pi -Dmapreduce.job.num-opportunistic-maps-percent="100" 50 100

while job is running , shutdown one NM

 also need inject sleep before AbstractYarnScheduler.getNode()

Issue Links

• is duplicated by: YARN-9164 Shutdown NM may cause NPE when opportunistic container scheduling is enabled