serving application pool 'ticket' was shutdown due to inactivity
A worker process with process id of '7512' serving application pool 'ticket' was shutdown due to inactivity. Application Pool timeout configuration was set to 20 minutes. A new worker process will be started when needed.
IIS: Idle Timeout vs Recycle
Idle Timeout is if no action has been asked from your web app, it the process will drop and release everything from memory 默认20分钟
Recycle is a forced action on the application where your processed is closed and started again, for memory leaking purposes and system health 默认1740分钟,29小时