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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-16520) NullPointerException in ProcedureExecutor#isProcedureOwner()
Date Mon, 29 Aug 2016 20:37:21 GMT
Ted Yu created HBASE-16520:
------------------------------

             Summary: NullPointerException in ProcedureExecutor#isProcedureOwner()
                 Key: HBASE-16520
                 URL: https://issues.apache.org/jira/browse/HBASE-16520
             Project: HBase
          Issue Type: Bug
            Reporter: Ted Yu


I was trying to abort a procedure which led to master shutdown.
Toward tail of the master log, I saw:
{code}
2016-08-29 20:25:26,180 ERROR [B.fifo.QRpcServer.handler=16,queue=1,port=20000] coprocessor.CoprocessorHost:
The coprocessor org.apache.ranger.authorization.hbase.RangerAuthorizationCoprocessor threw
   java.lang.NullPointerException
java.lang.NullPointerException
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.isProcedureOwner(ProcedureExecutor.java:653)
        at org.apache.ranger.authorization.hbase.RangerAuthorizationCoprocessor.preAbortProcedure(RangerAuthorizationCoprocessor.java:835)
        at org.apache.ranger.authorization.hbase.RangerAuthorizationCoprocessor.preAbortProcedure(RangerAuthorizationCoprocessor.java:3107)
        at org.apache.hadoop.hbase.master.MasterCoprocessorHost$47.call(MasterCoprocessorHost.java:601)
        at org.apache.hadoop.hbase.master.MasterCoprocessorHost.execOperation(MasterCoprocessorHost.java:1146)
        at org.apache.hadoop.hbase.master.MasterCoprocessorHost.preAbortProcedure(MasterCoprocessorHost.java:597)
        at org.apache.hadoop.hbase.master.HMaster.abortProcedure(HMaster.java:2654)
        at org.apache.hadoop.hbase.master.MasterRpcServices.abortProcedure(MasterRpcServices.java:1070)
        at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java:57274)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2127)
{code}
Under /procedures.jsp (after restart), the procedure I tried to abort had null as Owner.



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