High Waits on "Latch: library cache" Linked to DBMS_ALERT.REGISTER Queries on X$KGLOB Even With Fix Bug 9437010
(Doc ID 2238764.1)
Last updated on NOVEMBER 04, 2019
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
- DBMS_ALERT_INFO package is used, causing high usage of recursive sql which shows up as top sql in AWR:
However, after applying the patch, the performance is still slow.
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