[HDFS-14902] RBF: NullPointer When Misconfigured

• Type: Sub-task
• Status: Patch Available
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.2.0
• Component/s: rbf
• Assignee: Takanobu Asanuma
• Reporter: David Mollitor
• Created: 08/Oct/19 15:22
• Updated: 14/Mar/20 13:39

Description

Admittedly the server was mis-configured, but this should be a bit more elegant.

2019-10-08 11:19:52,505 ERROR router.NamenodeHeartbeatService: Unhandled exception updating NN registration for null:null
java.lang.NullPointerException
	at org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos$NamenodeMembershipRecordProto$Builder.setServiceAddress(HdfsServerFederationProtos.java:3831)
	at org.apache.hadoop.hdfs.server.federation.store.records.impl.pb.MembershipStatePBImpl.setServiceAddress(MembershipStatePBImpl.java:119)
	at org.apache.hadoop.hdfs.server.federation.store.records.MembershipState.newInstance(MembershipState.java:108)
	at org.apache.hadoop.hdfs.server.federation.resolver.MembershipNamenodeResolver.registerNamenode(MembershipNamenodeResolver.java:259)
	at org.apache.hadoop.hdfs.server.federation.router.NamenodeHeartbeatService.updateState(NamenodeHeartbeatService.java:223)
	at org.apache.hadoop.hdfs.server.federation.router.NamenodeHeartbeatService.periodicInvoke(NamenodeHeartbeatService.java:159)
	at org.apache.hadoop.hdfs.server.federation.router.PeriodicService$1.run(PeriodicService.java:178)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)