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From Guilherme Germoglio <germog...@gmail.com>
Subject Re: Scanner Exception
Date Thu, 03 Jun 2010 20:23:45 GMT
please check if the jars needed for your custom filter implementation are in
hbase's classpath

On Thu, Jun 3, 2010 at 5:16 PM, Raghava Mutharaju <m.vijayaraghava@gmail.com
> wrote:

> Hi all,
>
>      I wrote a custom filter and used it with scan. I am getting the
> following exceptions. If I use any built-in filters, it works fine. I
> searched around and one of the suggestions was to increase the lease
> timeout. Since it works fine for built-in filters, I am assuming that this
> is not the case. Is it that there is something wrong with my filter
> implementation?
>
> Regards,
> Raghava.
>
> Master log:
>
> org.apache.hadoop.hbase.UnknownScannerException: Name: -1
>        at
> org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1889)
>        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.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:657)
>        at
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
> 2010-06-03 16:02:10,775 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server handler 9 on 60770, call next(-1, 1) from 130.108.56.225:61091:
> error: org.apache.hadoop.hbase.UnknownScannerException: Name: -1
>
>
> Console:
>
> Exception in thread "main"
> org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to contact
> region server 130.108.56.225:60770 for region table1,,1274648045785, row
> '',
> but failed after 10 attempts.
> Exceptions:
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
> java.io.IOException: Call to /130.108.56.225:60770 failed on local
> exception: java.io.EOFException
>
>    at
>
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegionServerWithRetries(HConnectionManager.java:1055)
>    at
>
> org.apache.hadoop.hbase.client.HTable$ClientScanner.nextScanner(HTable.java:2003)
>    at
>
> org.apache.hadoop.hbase.client.HTable$ClientScanner.initialize(HTable.java:1923)
>    at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:403)
>    at
> org.knoesis.reasoning.MR.FilterReadClient.main(FilterReadClient.java:58)
>
> Line 58 above has a call to getScanner(CustomFilterInstance) of HTable.
>



-- 
Guilherme

msn: guigermoglio@hotmail.com
homepage: http://sites.google.com/site/germoglio/

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