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https://issues.apache.org/jira/browse/TRAFODION-2348?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sean Broeder reassigned TRAFODION-2348:
---------------------------------------

    Assignee: Sean Broeder

> TransactionState.hasConflict gets a null pointer exception
> ----------------------------------------------------------
>
>                 Key: TRAFODION-2348
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-2348
>             Project: Apache Trafodion
>          Issue Type: Bug
>          Components: dtm
>    Affects Versions: any, 2.1-incubating
>            Reporter: Sean Broeder
>            Assignee: Sean Broeder
>             Fix For: 1.3-incubating
>
>
> In the middle of hasConflict the TransactionState object compares its 
> writeOrder list to various other transactions.  In this case, we get a Null 
> pointer exception in the trasnaction to check against, so we return true to 
> has conflict and the transaction aborts.
> 2016-11-07 20:00:28,673 WARN 
> org.apache.hadoop.hbase.regionserver.transactional.TransactionState: 
> TrxTransactionState hasConflict: 
> Unable to get row - this Transaction [[transactionId: 12919375954 regionTX: 
> false status: PENDING neverReadOnly: false scan Size: 28 write Size: 14 
> startSQ: 34310]] 
> checkAgainst Transaction [[transactionId: 17214542234 regionTX: false status: 
> ABORTED neverReadOnly: false scan Size: 0 write Size: 0 startSQ: 34296 
> commitedSQ:34314]]  Exception:
> java.lang.NullPointerException
>         at 
> org.apache.hadoop.hbase.regionserver.transactional.TrxTransactionState.hasConflict(TrxTransactionState.java:469)
>         at 
> org.apache.hadoop.hbase.regionserver.transactional.TrxTransactionState.hasConflict(TrxTransactionState.java:438)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionEndpoint.hasConflict(TrxRegionEndpoint.java:6389)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionEndpoint.commitRequest(TrxRegionEndpoint.java:6138)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionEndpoint.commitRequest(TrxRegionEndpoint.java:6077)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionEndpoint.commitRequest(TrxRegionEndpoint.java:894)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.generated.TrxRegionProtos$TrxRegionService.callMethod(TrxRegionProtos.java:49510)
>         at 
> org.apache.hadoop.hbase.regionserver.HRegion.execService(HRegion.java:7054)
>         at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.execServiceOnRegion(RSRpcServices.java:1746)
>         at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.execService(RSRpcServices.java:1728)
>         at 
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:31447)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2035)
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:107)
>         at 
> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:130)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:107)
>         at java.lang.Thread.run(Thread.java:745)
> 2016-11-07 20:00:28,674 ERROR 
> org.apache.hadoop.hbase.regionserver.transactional.TransactionState: 
> TrxTransactionState hasConflict: 
> Returning true. This transaction [transactionId: 12919375954 regionTX: false 
> status: PENDING neverReadOnly: false scan Size: 28 write Size: 14 startSQ: 
> 34310] Caught exception from transaction [transactionId: 17214542234 
> regionTX: false status: ABORTED neverReadOnly: false scan Size: 0 write Size: 
> 0 startSQ: 34296 commitedSQ:34314], regionInfo is 
> [TRAFODION.JAVABENCH.OE_ORDERLINE_192,\x00\x00\x00\x1D\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,1478575978122.228b0109fcab4c57c25d7f1326f40f4e.],
>  exception
> java.lang.NullPointerException
>         at 
> org.apache.hadoop.hbase.regionserver.transactional.TrxTransactionState.hasConflict(TrxTransactionState.java:469)
>         at 
> org.apache.hadoop.hbase.regionserver.transactional.TrxTransactionState.hasConflict(TrxTransactionState.java:438)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionEndpoint.hasConflict(TrxRegionEndpoint.java:6389)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionEndpoint.commitRequest(TrxRegionEndpoint.java:6138)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionEndpoint.commitRequest(TrxRegionEndpoint.java:6077)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionEndpoint.commitRequest(TrxRegionEndpoint.java:894)
>         at 
> org.apache.hadoop.hbase.coprocessor.transactional.generated.TrxRegionProtos$TrxRegionService.callMethod(TrxRegionProtos.java:49510)
>         at 
> org.apache.hadoop.hbase.regionserver.HRegion.execService(HRegion.java:7054)
>         at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.execServiceOnRegion(RSRpcServices.java:1746)
>         at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.execService(RSRpcServices.java:1728)
>         at 
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:31447)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2035)
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:107)
>         at 
> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:130)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:107)
>         at java.lang.Thread.run(Thread.java:745)



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