I am load testing my rest API with JMeter. I got this error below when testing with 2500 users and 10 seconds ramp-up time. I wonder if there are any open connections that I can detect from SQL Server. Any ideas in order to get rid of this error?
System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.
The underlying provider failed on Open.