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EM 12c: Enterprise Manager 12c Cloud Control RAC Target Tablespace Metric Collection Error: ORA-12850: Could not allocate slaves on all specified instances (Doc ID 1680642.1)

Last updated on SEPTEMBER 08, 2021

Applies to:

Enterprise Manager for Oracle Database - Version 12.1.0.1.0 and later
Information in this document applies to any platform.

Symptoms

The Enterprise Manager (EM) 12c Cloud Control Agent is failing to collect the tbspAllocation metric with the following error:

 

Querying the MGMT$DB_TABLESPACES view show no rows for 12c RAC database targets.
This view is used in a script to produce the daily tablespace metric reports.

Originally the data is populated into mgmt$db_tablespaces via the agent's oracle_dbconfig and tbspAllocation metrics

 



Cause

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In this Document
Symptoms
Cause
Solution
References


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