Jose Manuel Jurado Diaz works through a customer issue:
Recently, I worked on a service request that a customer application reported the following error connecting to the database: “Timeout attempting to open the connection. The time period elapsed prior to attempting to open the connection has been exceeded. This may have occurred because of too many simultaneous non-pooled connection attempts.“.
Following, I would like to share the experience learned here.
The issue isn’t extremely common, but it does happen, especially when applications don’t use connection pooling.