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Queue Monitor Coordinator Cpu Consumption is High when AQ_TM_PROCESSES=10 (Doc ID 738873.1)

Last updated on MARCH 12, 2021

Applies to:

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 Exadata Express Cloud Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

The qmon coordinator process (QMNC) is constantly consuming CPU.

aq_tm_processes has been manually set to 10.

oradebug event 10852 trace name context forever, level 32 generates

kwqmnstslv: less than 10s since last failed ksvcreate.
Couldn't start a new slave
kwqmnstslv: less than 10s since last failed ksvcreate.
Couldn't start a new slave

Cause

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In this Document
Symptoms
Cause
Solution
References

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