Dbms_Shared_Pool.unmarkhot API Hangs
(Doc ID 2253385.1)
Last updated on FEBRUARY 19, 2019
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
- DBMS_SHARED_POOL.UNMARKHOT() Procedure hangs when hot copy count is high
- From the stack, it looks like oracle spins while getting and releasing a bucket mutex:
- _KGL_HOT_OBJECT_COPIES is set to 255 /* which indicates there are 255 hot copies possible for an object */
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