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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-17572) HMaster: Caught throwable while processing event C_M_MERGE_REGION
Date Thu, 09 Feb 2017 21:50:42 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell resolved HBASE-17572.
------------------------------------
    Resolution: Fixed

Pushed, re-resolving

> HMaster: Caught throwable while processing event C_M_MERGE_REGION
> -----------------------------------------------------------------
>
>                 Key: HBASE-17572
>                 URL: https://issues.apache.org/jira/browse/HBASE-17572
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.3.0
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>             Fix For: 1.4.0, 1.3.1
>
>         Attachments: HBASE-17572-branch-1.3.patch
>
>
> Running ITBLL 1B rows against branch-1.3 compiled against Hadoop 2.7.3 with the noKill
monkey policy, I see both masters go down with
> master.HMaster: Caught throwable while processing event C_M_MERGE_REGION
> java.lang.reflect.UndeclaredThrowableException
> In ServerManager#sendRegionsMerge we call ProtobufUtil#mergeRegions, which does a doAs,
and the code within that block invokes RSRpcServices#mergeRegions, but is not resilient against
RegionOpeningException ("region is opening")
> An UndeclaredThrowableException is "thrown by a method invocation on a proxy instance
if its invocation handler's invoke method throws a checked exception (a Throwable that is
not assignable to RuntimeException or Error) that is not assignable to any of the exception
types declared in the throws clause of the method that was invoked on the proxy instance and
dispatched to the invocation handler." (http://docs.oracle.com/javase/7/docs/api/java/lang/reflect/UndeclaredThrowableException.html)
>  
> {noformat}
> 2017-01-31 07:21:17,495 FATAL [MASTER_TABLE_OPERATIONS-node-1:16000-0] master.HMaster:
Caught throwable while processing event C_M_MERGE_REGION
> java.lang.reflect.UndeclaredThrowableException
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1737)
>         at org.apache.hadoop.hbase.protobuf.ProtobufUtil.mergeRegions(ProtobufUtil.java:1990)
>         at org.apache.hadoop.hbase.master.ServerManager.sendRegionsMerge(ServerManager.java:925)
>         at org.apache.hadoop.hbase.master.handler.DispatchMergingRegionHandler.process(DispatchMergingRegionHandler.java:153)
>         at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:129)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>         at java.lang.Thread.run(Thread.java:745)
> Caused by: com.google.protobuf.ServiceException: org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(org.apache.hadoop.hbase.exceptions.RegionOpeningException):
org.apache.hadoop.hbase.exceptions.RegionOpeningException: Region IntegrationTestBigLinkedList,|\xFFnk\x1C\x85<[\x1Ef\xFDE\xF9\xAA\xAC\x08,1485846598043.f56ad22121e872777468020c4452a7c7.
is opening on node-2.cluster,16020,1485822382322
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:2964)
>         at org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegion(RSRpcServices.java:1139)
>         at org.apache.hadoop.hbase.regionserver.RSRpcServices.mergeRegions(RSRpcServices.java:1497)
>         at org.apache.hadoop.hbase.protobuf.generated.AdminProtos$AdminService$2.callBlockingMethod(AdminProtos.java:22749)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2355)
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:123)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:188)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:168)
>         at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:244)
>         at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:340)
>         at org.apache.hadoop.hbase.protobuf.generated.AdminProtos$AdminService$BlockingStub.mergeRegions(AdminProtos.java:23695)
>         at org.apache.hadoop.hbase.protobuf.ProtobufUtil$1.run(ProtobufUtil.java:1993)
>         at org.apache.hadoop.hbase.protobuf.ProtobufUtil$1.run(ProtobufUtil.java:1990)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:422)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1719)
>         ... 7 more
> Caused by: org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(org.apache.hadoop.hbase.exceptions.RegionOpeningException):
org.apache.hadoop.hbase.exceptions.RegionOpeningException: Region IntegrationTestBigLinkedList,|\xFFnk\x1C\x85<[\x1Ef\xFDE\xF9\xAA\xAC\x08,1485846598043.f56ad22121e872777468020c4452a7c7.
is opening on node-2.cluster,16020,1485822382322
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:2964)
>         at org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegion(RSRpcServices.java:1139)
>         at org.apache.hadoop.hbase.regionserver.RSRpcServices.mergeRegions(RSRpcServices.java:1497)
>         at org.apache.hadoop.hbase.protobuf.generated.AdminProtos$AdminService$2.callBlockingMethod(AdminProtos.java:22749)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2355)
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:123)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:188)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:168)
>         at org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1286)
>         at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:231)
>         ... 14 more
> {noformat}



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