"Shutdown Immediate" takes a long time due to the time between "Entire Buffer Cache invalidation Started" and "Entire Buffer Cache invalidation Completed" Entries in the Alert Log
(Doc ID 2858699.1)
Last updated on APRIL 17, 2023
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11.0 and later
Information in this document applies to any platform.
After a "shutdown immediate", the alert log shows that "Entire Buffer Cache invalidation" takes >20 minutes without any active sessions:
This same issue occurred in 12.1.
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