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HBase, mail # user - Calling endpoint fails


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Re: Calling endpoint fails
Ted Yu 2013-07-10, 14:26
bq. IPC server unable to read call parameters: Error in readFields.......

Was there more in the stack trace ?

Did your Endpoint coprocessor serialize/deserialize additional parameter(s)
?

On Wed, Jul 10, 2013 at 5:15 AM, Amit Sela <[EMAIL PROTECTED]> wrote:

> Hi all,
>
> I'm trying to deploy an EndPoint Coprocessor I wrote. This isn't the first
> one I'm writing and deploying but I can't seem to find the problem here.
> I pack the code in a JAR, copy it to HDFS and load it to the table from
> shell (with full URI of course).
>
> When  I try to execute the endpoint (which execute a scan using
> InternalScanner) I get nothing for a few seconds and then I get exceptions:
>
> HConnectionImplementation » Error executing for row "start_key"
> RetriesExhaustedException: Failed after attempts=10, exceptions:
> IOException: IPC server unable to read call parameters: Error in
> readFields.......*10 times*
> *
> *
> at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252)
> at java.util.concurrent.FutureTask.get(FutureTask.java:111)
> at
>
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processExecs(HConnectionManager.java:1453)
> at org.apache.hadoop.hbase.client.HTable.coprocessorExec(HTable.java:1236)
> at org.apache.hadoop.hbase.client.HTable.coprocessorExec(HTable.java:1216)
> at
>
> org.apache.hadoop.hbase.client.HTablePool$PooledHTable.coprocessorExec(HTablePool.java:481)
> at
>
> com.infolinks.redmap.services.impl.utils.TestExecutor.testHBaseCPScan(TestExecutor.java:171)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
>
> Is there something I missed in deployment ?
> Thanks,
>
> Amit.
>