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https://issues.apache.org/jira/browse/HBASE-21441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16677825#comment-16677825
]
Duo Zhang commented on HBASE-21441:
-----------------------------------
Tried locally, TestSyncReplicationStandbyKillMaster passed.
Pushed to master.
Thanks [~zghaobac] for reviewing.
> NPE if RS restarts between REFRESH_PEER_SYNC_REPLICATION_STATE_ON_RS_BEGIN
> and TRANSIT_PEER_NEW_SYNC_REPLICATION_STATE
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-21441
> URL: https://issues.apache.org/jira/browse/HBASE-21441
> Project: HBase
> Issue Type: Sub-task
> Components: Replication
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 3.0.0
>
> Attachments: HBASE-21441.patch
>
>
> {noformat}
> 2018-11-06,12:55:25,980 WARN
> [RpcServer.default.FPBQ.Fifo.handler=251,queue=11,port=17100]
> org.apache.hadoop.hbase.master.replication.RefreshPeerProcedure: Refresh peer
> TestPeer for TRANSIT_SYNC_REPLICATION_STATE on
> c4-hadoop-tst-st54.bj,17200,1541479922465 failed
> java.lang.NullPointerException via
> c4-hadoop-tst-st54.bj,17200,1541479922465:java.lang.NullPointerException:
> at
> org.apache.hadoop.hbase.procedure2.RemoteProcedureException.fromProto(RemoteProcedureException.java:124)
> at
> org.apache.hadoop.hbase.master.MasterRpcServices.lambda$reportProcedureDone$4(MasterRpcServices.java:2303)
> at java.util.ArrayList.forEach(ArrayList.java:1249)
> at
> java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080)
> at
> org.apache.hadoop.hbase.master.MasterRpcServices.reportProcedureDone(MasterRpcServices.java:2298)
> at
> org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:13149)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:338)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:318)
> Caused by: java.lang.NullPointerException:
> at
> org.apache.hadoop.hbase.wal.SyncReplicationWALProvider.peerSyncReplicationStateChange(SyncReplicationWALProvider.java:303)
> at
> org.apache.hadoop.hbase.replication.regionserver.PeerProcedureHandlerImpl.transitSyncReplicationPeerState(PeerProcedureHandlerImpl.java:216)
> at
> org.apache.hadoop.hbase.replication.regionserver.RefreshPeerCallable.call(RefreshPeerCallable.java:74)
> at
> org.apache.hadoop.hbase.replication.regionserver.RefreshPeerCallable.call(RefreshPeerCallable.java:34)
> at
> org.apache.hadoop.hbase.regionserver.handler.RSProcedureHandler.process(RSProcedureHandler.java:47)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
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