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ORA-20 reported in -MGMTDB alert log (Doc ID 1945246.1)

Last updated on AUGUST 16, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.1 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

-MGMTDB is not releasing the database connection, causing it to run out of processes. -MGMTDB is the management database used for storing CHM (Cluster Health Monitor) data in 12c.

alert_-MGMTDB.log shows:

Shutdown and restart the -MGMTDB does not help, it soon reports ORA-20 again.


Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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