Limit the number of instances

Hello all,
I have been reading a lot of articles on the internet the last days on how to limit the number of instances for an asynchronous ftp process. I connect to an FTP every hour and transfer all the .xml file that are available. After FTP there is some more processing that has to be done.
For the moment when the customer uploads 20 files to his FTP, 20 instances of the same process are started. I want to limit this number to 5. I have been playing with all the possible parameters found on the internet and have been applying all the rules (like sum of workerbean and invokerbean ... sum of dspMaxThreads of all domains), but none of them worked !
I have put this process out of my production environment for the moment until I know how to control the number of instances.
The version I'm using is 10.1.3.3.0
If I don't get this solved I will be upgrading to 10.1.3.5 but I have no guarantee that the upgrade will do the trick ....
Home someone can help ...
Thanks,
Best regards,
Tom.

Hmmmm... I found the cause of the problem. The onMessage() method of the MDB is using some DB backend. This backend was catching an exception and continuing normally, but for some reason, the MDB executed six more times. Something like

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Debbie (guest) wrote:
: Chad Nale (guest) wrote:
: : How can I limit the number of rows returned by a select
: : statement. I have a query where I return the number of
: stores
: : that are located in a given area.. I only want to return the
: : first twenty-five stores. In some instances there may be
: over
: : 200 stores in a given location.
: : I know is SQL 7 that I can set the pagesize to be 25....
: : Anything similiar in Oracle 8i?
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: Used together with an appropriate ORDER BY you
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Limit the number of instances

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