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From "Kathey Marsden (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-614) Execution failed because of a Distributed Protocol Error
Date Tue, 25 Oct 2005 17:29:57 GMT
    [ http://issues.apache.org/jira/browse/DERBY-614?page=comments#action_12355877 ] 

Kathey Marsden commented on DERBY-614:
--------------------------------------

Your steps 1 and 2 sound like a good approach to me.  It would be good to get input from others.
 I know Oyvind,  Rick  and Francois have been dabbling in DRDA. Opinions?

MAXBLKEXT I think would only be relevant if you took the alternate approach of trying to push
the remaining data out to the client when splitQRYDTA is called and not save it for later.
 That approach might be a can of worms as I don't know that the client is set up to handle
it, since it is currently sending MAXBLKEXT as zero.


> Execution failed because of a Distributed Protocol Error
> --------------------------------------------------------
>
>          Key: DERBY-614
>          URL: http://issues.apache.org/jira/browse/DERBY-614
>      Project: Derby
>         Type: Bug
>   Components: Network Server
>     Versions: 10.1.1.0
>  Environment: Linux 2.4, Sun JDK 1.4.2_07, full SYSINFO will be attached.
>     Reporter: Bryan Pendleton
>  Attachments: clientSideTrace.txt, clientStack.txt, derby-614.zip, derbyTrace.txt, query.txt,
serverSideTrace.txt, sysinfo.derby
>
> I am intermittently receiving Distributed Protocol Error exceptions in my client code.
Simultaneously,
> my derby.log is recording Distributed Protocol Error exceptions on the server side.
> I cannot reliably reproduce this problem. 
> However, the problem always occurs in the same section of my application, so I can at
least
> describe that section of my application. (I'll do so in an attachment).
> Here is the error I receive on the server side. Sometimes, the CODPNT is 2116 and the
> Error Code Value is 1d, rather than 2114 and e.
> 2005-10-05 02:10:23.663 GMT Thread[DRDAConnThread_2,5,main] (DATABASE = BuildFar
> m), (DRDAID = GA0A0026.P7E6-4182154075488704215{136532}), Execution failed becau
> se of a Distributed Protocol Error:  DRDA_Proto_SYNTAXRM; CODPNT arg  = 2114; Er
> ror Code Value = e
> Execution failed because of a Distributed Protocol Error:  DRDA_Proto_SYNTAXRM;
> CODPNT arg  = 2114; Error Code Value = e
> 2005-10-05 02:10:23.663 GMT Thread[DRDAConnThread_2,5,main] (DATABASE = BuildFar
> m), (DRDAID = GA0A0026.P7E6-4182154075488704215{136532}), null
> null
> org.apache.derby.impl.drda.DRDAProtocolException
>         at org.apache.derby.impl.drda.DRDAConnThread.throwSyntaxrm(Unknown Sourc
> e)
>         at org.apache.derby.impl.drda.DRDAConnThread.missingCodePoint(Unknown So
> urce)
>         at org.apache.derby.impl.drda.DRDAConnThread.parseCNTQRY(Unknown Source)
>         at org.apache.derby.impl.drda.DRDAConnThread.splitQRYDTA(Unknown Source)
>         at org.apache.derby.impl.drda.DRDAConnThread.writeFDODTA(Unknown Source)
>         at org.apache.derby.impl.drda.DRDAConnThread.writeQRYDTA(Unknown Source)
>         at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown Sou
> rce)
>         at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)

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