ORA-20 reported in -MGMTDB alert log
(Doc ID 1945246.1)
Last updated on MAY 24, 2021
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 to 126.96.36.199 [Release 12.1 to 12.2]
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.
-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.
Shutdown and restart the -MGMTDB does not help, it soon reports ORA-20 again.
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