What is the difference between "Stop", "Immediate Stop" and "Terminate" in case of a Websphere Application Server instance. Specifically in the context of in-flight requests and in-flight transactions at the time.
Stop, trys to stop the server by letting all processes finish and shutting down all communication.
Immediate stop: Stops the server, but bypasses the normal server quiesce process that would allow in-flight requests to complete before shutting down the whole server process. This shutdown mode is faster than the normal server stop processing, but some application clients may receive exceptions.
Terminate: Just kill the app and deal with problems later :-)