How can I debug leaks caused by ODBC calls in app linked with libtt.so?

Hi,
we are using TimesTen Release 7.0.5.0.0 on Solaris 10.
and we are using libtt.so to link our application and connect using ODBC calls.
The problem is that we have made some serious changes to our large code base and now we see a leak.
Here is what I know:
1) Although it is easy to reproduce it doesn't seem to follow a clear pattern. ie. the amount leaked isn't a direct function of the number of request or time spent.
2) When our application is linked with libttclient.so there is no leak at all.
3) prstat shows increments of 4 MBytes each time it leaks.
So I suspect it is because the memory isn't freed but how can I tell which ODBC calls are causing it?
Is there a debug option I could turn on to help with this?
Perhaps something in ttTraceMon?
Thanks

Hello Serge,
Just a note that we often times get this type of alarm about memory leaks in TimesTen when using the libtt.so library when using tools such as top or prstat to gage memory consumption. The reality is that these commands are not a good way to look for memory leaks / memory utilization when using TimesTen in direct connect mode. The TimesTen database resides in shared memory and so the fact that prstat shows big or increasing numbers should not be alarming.
The only reliable way to check for memory leaks is to use a tool designed exactly for that such as Purify, which the TimesTen development team uses extensively and so it's unlikely that you'll find memory leaks in TimesTen.
Have you found that memory is being exhausted after a period of application runtime and transaction iterations?
You could use ttTraceMon and work with TimesTen support/engineering to extrapolate and answer from the trace it gaves, but unfortunately, there's rarely an easy way to answer queries on what is going on in either the Permament or Temporary partition.
I'd first make sure that there is indeed a problem but running your application workload for some time. My suspicion is that the prstat command results are being misleading once more.
Regards,
Henri

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