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From Andrew Purtell <apurt...@yahoo.com>
Subject Re: org.apache.hadoop.hbase.UnknownScannerException
Date Thu, 06 Nov 2008 18:38:12 GMT
Have you tried increasing the regionserver timeout to be the same as your mapred task timeout?
This way scanners will live at least as long as your tasks. 

Maybe during your upgrade your conf was changed? 

   - Andy

> From: Edward J. Yoon <edwardyoon@apache.org>
> Subject: org.apache.hadoop.hbase.UnknownScannerException
> To: hbase-user@hadoop.apache.org, hama-dev@incubator.apache.org
> Date: Wednesday, November 5, 2008, 11:52 PM
>
> After upgrade hadoop to 0.18.2 from 0.18.1, I received an
> UnknownScannerException. And, Map in/output bytes are only
> 288 bytes.
> 
> Does anyone know about this?
> 


      

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