Oracle - 数据库打补丁最佳实践
https://www.cnblogs.com/lkj371/p/16931454.html

http://bbs.cqsztech.com/forum.php?mod=viewthread&tid=29675

*********** START A RUN OF [KDILM background CLeaNup] *************
*********** END A RUN *************
*** MODULE NAME:(MMON_SECONDARY) 2020-09-14T16:17:16.383449+02:00
*** ACTION NAME:(Intensive AutoTask Dispatcher) 2020-09-14T16:17:16.383461+02:0


CHANGES
upgraded to 19.7

CAUSE
Known bug.

Bug 31751034 HAVING EXCESSIVE M0* TRACING AFTER FIX FOR 30972959 HAS BEEN APPLIED
Bug 30329751 - ASM INSTANCE MMON_SLAVE M000 TRC KEEPS GENERATING MESSAGE CLEANUP KGL HANDLE ACTION
Bug 30972959 - EXCESSIVE TRACING - M* SLAVE TRACES FILLED ACTION RUN INFORMATION


SOLUTION
Apply Patch 31930222: MERGE ON DATABASE RU 19.7.0.0.0 OF 30329751 30972959