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Posted to issues@hbase.apache.org by "Pankaj Kumar (Jira)" <ji...@apache.org> on 2020/04/03 08:37:00 UTC
[jira] [Commented] (HBASE-24074) ConcurrentModificationException
occured in ReplicationSourceManager while refreshing the peer
[ https://issues.apache.org/jira/browse/HBASE-24074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17074411#comment-17074411 ]
Pankaj Kumar commented on HBASE-24074:
--------------------------------------
This bug is not aplicable to master branch since we are using iterator there..
[https://github.com/apache/hbase/blob/4565f74af2e9c6f1b3e069cb36e9cad40289337c/hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceManager.java#L455]
> ConcurrentModificationException occured in ReplicationSourceManager while refreshing the peer
> ---------------------------------------------------------------------------------------------
>
> Key: HBASE-24074
> URL: https://issues.apache.org/jira/browse/HBASE-24074
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Reporter: Pankaj Kumar
> Assignee: Pankaj Kumar
> Priority: Major
>
> Peer update failed with ConcurrentModificationException,
> {noformat}
> 2020-03-28 11:36:49,770 | WARN | RpcServer.default.FPBQ.Fifo.handler=49,queue=4,port=hm_port | Refresh peer peer1 for UPDATE_CONFIG on rs_host,rs_port,1585228936395 failed | org.apache.hadoop.hbase.master.replication.RefreshPeerProcedure.complete(RefreshPeerProcedure.java:114)
> java.util.ConcurrentModificationException via szvphispra08478,21302,1585228936395:java.util.ConcurrentModificationException:
> at org.apache.hadoop.hbase.procedure2.RemoteProcedureException.fromProto(RemoteProcedureException.java:124)
> at org.apache.hadoop.hbase.master.MasterRpcServices.lambda$reportProcedureDone$4(MasterRpcServices.java:2576)
> at java.util.ArrayList.forEach(ArrayList.java:1257)
> at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1082)
> at org.apache.hadoop.hbase.master.MasterRpcServices.reportProcedureDone(MasterRpcServices.java:2571)
> at org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:15341)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:133)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:338)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:318)
> Caused by: java.util.ConcurrentModificationException:
> at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909)
> at java.util.ArrayList$Itr.next(ArrayList.java:859)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSourceManager.refreshSources(ReplicationSourceManager.java:399)
> at org.apache.hadoop.hbase.replication.regionserver.PeerProcedureHandlerImpl.updatePeerConfig(PeerProcedureHandlerImpl.java:123)
> at org.apache.hadoop.hbase.replication.regionserver.RefreshPeerCallable.call(RefreshPeerCallable.java:68)
> at org.apache.hadoop.hbase.replication.regionserver.RefreshPeerCallable.call(RefreshPeerCallable.java:34)
> at org.apache.hadoop.hbase.regionserver.handler.RSProcedureHandler.process(RSProcedureHandler.java:47)
> at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
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