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ORA-03114: NOT CONNECTED TO ORACLE

I'm running a long job from a web application with a IIS / vb.net mid tier and an oracle backend.

The web app runs in IIS as high isolated.

After many minutes (not sure how many yet), the thing comes back with ORA-03114: NOT CONNECTED TO ORACLE

Are there any configuration parameters either in IIS or ORACLE or other things I can set that might fix this?  

thanks
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Hi Richard.

Thanks for this. The sql gave me
F:\oracle\admin\DBNAME\bdump

So I went there and theres a alert_dbname.log which hasn't been updated for 7 days, I checked its contents as well and thats also 7 days old at the bottom

Other than that theres trc files the latest of which is 3 days ago.

thanks
Paul
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The error happens when we import a large file using our software. The process is constantly pushing data into oracle. Technically its running through IIS

When we use a smaller file (< 5 mins load time) it loads ok and completes. There's some kind of timeout going on I think
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Have a look at TRC files in F:\oracle\admin\DBNAME\udump
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I am rerunning it now and will report back...

thanks
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Nope. I made it fail again and the latest trc or any file in those folders is dated 4 days ago.
Do you have SQL*Plus installed on the IIS / .NET box ?
Can you open a session ?
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>> Can you open a session ?

Yes I can query the database fine from sql plus or from my own little "query analyser" program written in vb

>> Check if your archive log destination is 'full' (log_archive_dest)

Can you tell me how to check this ? I am not familiar with oracle - thanks
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>> What is the profile of the user?

DBA and AQ_ADMINISTRATOR_ROLE
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Here's all the text of the error message it gave me.. which is not very useful


17-Oct-2006 10:57:52,-2147467259,Error: ORA-03114: not connected to ORACLE$Native Error:3114 (-2147467259)$Occurred in (OraOLEDB) context Table DBTransform
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No, the entire code runs under a single connection
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Points coming up... but the answer is in the above thread

Please note, for anyone trying to analyse NOT CONNECTED TO ORACLE in future, the cause in this case was a previous error that wasnt correctly handled. (end of communication error), which drops the connection and then not connected to oracle is raised on a subsequent query.

thanks