I am running SAP Adaptor 4.5 (SP5 build 625) hosted on IS 6.1 on Solaris platform. Overtime, the SAP adaptor connection pool size out-grows its maximum size (set to 100) causing subsequent requests to SAP to wait indefinitely. Eventually I have to restart the IS hosting SAP Adaptor. I also noticed that “locked session” count reamins to ZERO when pool size keeps growing (ruling out the possibility that services are locking SAP sessions but not unlocking them). I set SAP Adaptor params as follows:
Timeout (minutes) 3
Timeout check period (seconds) 5
Sessionpool size 100
Poolqueue waiting time (seconds) 30
At any time, the transaction volume for SAP does not require more than 10 sessions simultaneously. I wonder if it would be an internal problem with connection polling in SAP Adaptor.
If anyone eccountered this problem and more importantly fixed/worked around it, Pls. share.