Recently, I had to look at an issue in our code regarding “Connection request timed out”. Our Oracle connections are set to use the Pooling service offered by ODP.NET. Oracle documentation as the following description:
“The Max Pool Size attribute of the ConnectionString property sets the maximum number of connections for a connection pool. If a new connection is requested, but no connections are available and the limit for Max Pool Size has been reached, then the connection pooling service waits for the time defined by the Connection Timeout attribute. If the Connection Timeout time has been reached, and there are still no connections available in the pool, the connection pooling service raises an exception indicating that the connection pool request has timed-out.” [Ref-01, p3-6]
Joao @ iLab8 