The reporting service web service connection pool reached the max pool size

Question

I got a problem that it throw an exception "The timeout peroid elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connection was in use and max pool size was reached."
The satuation is our service use 15 thread to render report, but sometimes we met such exception I list above. I didn't change any configuration in rsreportserver.config, and it seems the connection to reportserver database from reporting service web
service was not disposed.
Is there any configuration I can modify to fix this issue?

Answer 1

Hi Dexter,
In your case, we can try to increasing the size of the connection pool to resolve the issue. By default, the Max Pool Size is 100. You can refer to the similar issue below:
http://social.msdn.microsoft.com/Forums/en-US/c57c0432-c27b-45ab-81ca-b2df76c911ef/timeout-expired-the-timeout-period-elapsed-prior-to-obtaining-a-connection-from-the-pool?forum=adodotnetdataproviders
Since the issue is related with ADO.NET. I suggestion you post the question in the following forum:
http://social.msdn.microsoft.com/Forums/en-US/home?forum=adodotnetdataproviders
It is appropriate and more experts will assist you.
Regards,
Alisa Tang
Alisa Tang
TechNet Community Support