Shutdown Immediate very slow
( 19c on Windows )
I have a related question in another thread, but strictly spoken this behaviour is a different case really:
If you Shutdown Immediate, my experience (some decades) of doing that is that it takes 2, 3 or maybe 5 minutes to complete, never more.
A problem is that this is a documented feature, as the best Oracle documentation will tell is that a Shutdown Immediate should be "fast". That of course is subject to discussion, but I have my experience, as stated above.
If I now can reproduce a behaviour where a Shutdown Immediate is taking 15 minutes, half an hour, my question is : why ?