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https://issues.apache.org/jira/browse/HDFS-14704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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CR Hota reassigned HDFS-14704:
------------------------------
Assignee: xuzq
> RBF：NnId should not be null in NamenodeHeartbeatService
> -------------------------------------------------------
>
> Key: HDFS-14704
> URL: https://issues.apache.org/jira/browse/HDFS-14704
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: rbf
> Reporter: xuzq
> Assignee: xuzq
> Priority: Major
> Attachments: HDFS-14704-trunk-001.patch
>
>
> NnId should not be null in NamenodeHeartbeatService.
> If NnId is null, it will also print the error message like:
> {code:java}
> 2019-08-06 10:38:07,455 ERROR router.NamenodeHeartbeatService
> (NamenodeHeartbeatService.java:updateState(229)) - Unhandled exception
> updating NN registration for ns1: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:267)
> 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){code}
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