[jira] Created: (HADOOP-2693) [hbase] NPE in getClosestRowBefore

[hbase] NPE in getClosestRowBefore
----------------------------------

                 Key: HADOOP-2693
                 URL: https://issues.apache.org/jira/browse/HADOOP-2693
             Project: Hadoop Core
          Issue Type: Bug
          Components: contrib/hbase
            Reporter: stack


Just saw this in a load test:

{code}
2008-01-23 22:43:42,831 INFO org.apache.hadoop.ipc.Server: IPC Server handler 8 on 60020, call getClosestRowBefore(.META.,,1, TestTable,,999999999999999, 9223372036854775807) from XX.XX.XX.141:49068: error: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.lang.NullPointerException
        at org.apache.hadoop.io.Text.compareTo(Text.java:278)
        at org.apache.hadoop.hbase.HStore.getRowKeyAtOrBefore(HStore.java:1846)
        at org.apache.hadoop.hbase.HRegion.getClosestRowBefore(HRegion.java:1109)
        at org.apache.hadoop.hbase.HRegionServer.getClosestRowBefore(HRegionServer.java:1434)
        at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.hbase.ipc.HbaseRPC$Server.call(HbaseRPC.java:413)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:908)
{code}

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stack commented on HADOOP-2693:
-------------------------------

This is what it looks like client-side:
{code}
08/01/23 22:44:13 ERROR hbase.PerformanceEvaluation: Failed
java.io.IOException: java.io.IOException: java.lang.NullPointerException

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at org.apache.hadoop.hbase.RemoteExceptionHandler.decodeRemoteException(RemoteExceptionHandler.java:82)
        at org.apache.hadoop.hbase.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:469)
        at org.apache.hadoop.hbase.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:343)
        at org.apache.hadoop.hbase.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:306)
        at org.apache.hadoop.hbase.HTable.<init>(HTable.java:90)
        at org.apache.hadoop.hbase.PerformanceEvaluation$Test.testSetup(PerformanceEvaluation.java:308)
        at org.apache.hadoop.hbase.PerformanceEvaluation$Test.test(PerformanceEvaluation.java:323)
        at org.apache.hadoop.hbase.PerformanceEvaluation.runOneClient(PerformanceEvaluation.java:525)
        at org.apache.hadoop.hbase.PerformanceEvaluation.runNIsOne(PerformanceEvaluation.java:546)
        at org.apache.hadoop.hbase.PerformanceEvaluation.runTest(PerformanceEvaluation.java:568)
        at org.apache.hadoop.hbase.PerformanceEvaluation.doCommandLine(PerformanceEvaluation.java:663)
        at org.apache.hadoop.hbase.PerformanceEvaluation.main(PerformanceEvaluation.java:682)
{code}

> [hbase] NPE in getClosestRowBefore
> ----------------------------------
>
>                 Key: HADOOP-2693
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2693
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hbase
>            Reporter: stack
>
> Just saw this in a load test:
> {code}
> 2008-01-23 22:43:42,831 INFO org.apache.hadoop.ipc.Server: IPC Server handler 8 on 60020, call getClosestRowBefore(.META.,,1, TestTable,,999999999999999, 9223372036854775807) from XX.XX.XX.141:49068: error: java.io.IOException: java.lang.NullPointerException
> java.io.IOException: java.lang.NullPointerException
>         at org.apache.hadoop.io.Text.compareTo(Text.java:278)
>         at org.apache.hadoop.hbase.HStore.getRowKeyAtOrBefore(HStore.java:1846)
>         at org.apache.hadoop.hbase.HRegion.getClosestRowBefore(HRegion.java:1109)
>         at org.apache.hadoop.hbase.HRegionServer.getClosestRowBefore(HRegionServer.java:1434)
>         at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.hbase.ipc.HbaseRPC$Server.call(HbaseRPC.java:413)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:908)
> {code}

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