Session Undefined with MIDAS

[jimpoe]

We are using DOA with MIDAS. On some of our machines we get 'Session Undefined' errors usually when the application has been idle for a few minutes. We cannot duplicate this on our development machines. I was wondering if anyone else has seen this problem.

Thanks

Jim

 

[Marco Kalter]

I have not seen this before, but as far as I can see this can only mean that a database access component is being used that is not linked to a TOracleSession. Either the component was never linked to a session, or the session property was set to nil, or the linked session was freed.

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Marco Kalter
Allround Automations

 

[jimpoe]

Thanks for the reply.

When a remotedatamodule is created I have a routine that loops through the components and explicitly sets the session property for each component that has a session property. The "session not defined" error usually occurs on a dataset that was previously used. It also seems to be related to the application sitting in "idle" for a period of time. I do not have any code that explicitly clears the session property or frees the session component.

Are you aware of any timing out parameters in your components or with Oracle?

 

[Marco Kalter]

The only component that has a time-out is the TOracleEvent component. Maybe you have your own time-out mechanism in your application?

In any case, this time-out event must either clear a session property or create/use a component that has a nil session property.

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Marco Kalter
Allround Automations