Error While Writing Record

oldforum

• July 16, 2007 00:00

• Answered

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Hi,
Exception : java.nio.BufferOverflowException
What i assume is , This Exception is coming at time of Port.writeRecord method. Sometimes, while processing i m not getting this error and some times i m getting this error for same data file and graph file.

What could be the possible reason for
different output on different occasions?

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  oldforum

  • July 16, 2007 08:23

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  I had BufferOverflowException in Merge Component - when its processing many records and also waiting on the previous component to finish processing.
  
  By taking out the Mege component to new phase, I could resolve this issue.
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  oldforum

  • July 16, 2007 08:23

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  Hi David,
  
  
  
  For debugging i changed following lines in Graph/BufferdEdge packBuffer() method.
  
  This:" if (dataBuffer.remaining()==0 || readPosition==position)" was changed with
  "if (readPosition==position)" and it went through fine uptil now.
  
  Ranvir
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  oldforum

  • July 16, 2007 08:23

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  Hello Ranvir !
  
  In general, this may mean that the data you are processing is quite large (data records) and sometimes does not fit into the internal buffer - set to 8192. Of course, it may mean that there is some internal error, but I would need more details to provide qualified guess.
  
  If you have the source code of Clover, go to org.jetel.data.Defaults and increase MAX_RECORD_SIZE and FIELD_BUFFER_LENGTH.
  
  I have posted something regarding these compile-time constants to this conference some time ago.
  
  David.
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  oldforum

  • July 16, 2007 08:23

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  Hello Ranvir !
  
  Could you please describe a bit more the problem & the fix ?
  
  Thanks a lot !
  
  David.
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  oldforum

  • July 16, 2007 08:23

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  Hello !
  
  Can you possibly send the graph layout to david.pavlis<at>centrum.cz ?
  
  That would help me investigate the problem.
  
  Thanks,
  
  David.

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