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From Ted Yu <yuzhih...@gmail.com>
Subject Re: cannot invoke coprocessor in trunk
Date Wed, 18 Jul 2012 22:08:23 GMT
ClassNotFoundException ...

How did you load your coprocessor jar ?

On Wed, Jul 18, 2012 at 3:05 PM, Yin Huai <huaiyin.thu@gmail.com> wrote:

> Hello All,
>
> When I was trying to invoke coprocessor against trunk, I got the following
> error...
>
> 12/07/18 13:43:49 WARN client.HConnectionManager$HConnectionImplementation:
> Error executing for row
> java.util.concurrent.ExecutionException:
> org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after
> attempts=10, exceptions:
> Wed Jul 18 13:43:10 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> org.apache.hadoop.hbase.NotServingRegionException:
> org.apache.hadoop.hbase.NotServingRegionException: Region is not online:
> f9cd8c5c4e0c3bd4bab9ea57580bdb60
> Wed Jul 18 13:43:11 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> java.io.IOException:
> java.io.IOException: java.lang.ClassNotFoundException:
> coprocessor.simple.workload.RowCountTrunkProtocol
> Wed Jul 18 13:43:12 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> java.io.IOException:
> java.io.IOException: java.lang.ClassNotFoundException:
> coprocessor.simple.workload.RowCountTrunkProtocol
> Wed Jul 18 13:43:13 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> java.io.IOException:
> java.io.IOException: java.lang.ClassNotFoundException:
> coprocessor.simple.workload.RowCountTrunkProtocol
> Wed Jul 18 13:43:15 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> java.io.IOException:
> java.io.IOException: java.lang.ClassNotFoundException:
> coprocessor.simple.workload.RowCountTrunkProtocol
> Wed Jul 18 13:43:17 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> java.io.IOException:
> java.io.IOException: java.lang.ClassNotFoundException:
> coprocessor.simple.workload.RowCountTrunkProtocol
> Wed Jul 18 13:43:21 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> java.io.IOException:
> java.io.IOException: java.lang.ClassNotFoundException:
> coprocessor.simple.workload.RowCountTrunkProtocol
> Wed Jul 18 13:43:25 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> java.io.IOException:
> java.io.IOException: java.lang.ClassNotFoundException:
> coprocessor.simple.workload.RowCountTrunkProtocol
> Wed Jul 18 13:43:33 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> java.io.IOException:
> java.io.IOException: java.lang.ClassNotFoundException:
> coprocessor.simple.workload.RowCountTrunkProtocol
> Wed Jul 18 13:43:49 EDT 2012,
> org.apache.hadoop.hbase.ipc.ExecRPCInvoker$1@141dddba,
> java.io.IOException:
> java.io.IOException: java.lang.ClassNotFoundException:
> coprocessor.simple.workload.RowCountTrunkProtocol
>
> at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
> at java.util.concurrent.FutureTask.get(FutureTask.java:83)
>  at
>
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processExecs(HConnectionManager.java:2183)
> at org.apache.hadoop.hbase.client.HTable.coprocessorExec(HTable.java:1382)
>  at org.apache.hadoop.hbase.client.HTable.coprocessorExec(HTable.java:1362)
> at
> coprocessor.simple.workload.EndpointExample.main(EndpointExample.java:93)
>  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>  at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
>  at
>
> org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
>  at driver.Driver.main(Driver.java:19)
>
> The first error (NotServingRegionException) is caused by table splitting.
> But I do not know the reason of following errors. Seems that the client
> side has some issues on recognizing my coprocessor protocol.
>
> btw, I can run the same code against 0.94.
>
> Thanks,
>
> Yin
>

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