I am trying to investigate a performance issue that happened couple of weeks ago. For 20 mins, many users could not log in to a system. The application in question uses a database that has the user details, controls access based on the information on that database tables, etc.
Users reported the outage lasted from 2.42 to 2:54.
I looked at SQL logs and I can't find any thing until 2.54. I get the a stream of these at 2:54
The client was unable to reuse a session with SPID 82, which had been reset for connection pooling. The failure ID is 29. This error may have been caused by an earlier operation failing. Check the error logs for failed operations immediately before this error message.
Error: 18056, Severity: 20, State: 29.
The only log I see before is:
FILESTREAM: effective level = 0, configured level = 0, file system access share name = 'MSSQLSERVER'.
No major activity happened during this time.
Is there any way to figure out what happened during this time?
Thanks so much for your time.