Enterprise Manager 12c for Oracle Database - Database Locks Do Not Report 'blocking Locks' Or 'User Locks'
(Doc ID 2044776.1)
Last updated on JANUARY 09, 2025
Applies to:
Enterprise Manager for Oracle Database - Version 12.1.0.6.0 to 12.1.0.8.0 [Release 12.1]Information in this document applies to any platform.
Symptoms
Access 12c Cloud Control(Any version)
Simulate a blocking session as given below.
Use case:
Connect to a RAC database instance with SQLPLUS as the dbsnmp user.
In Enterprise Manager Cloud Control console, navigate to the home page of cluster database.
From there select Performance > Blocking session.
- This page does not report that the session 2 is blocked by the session1.
- Navigating at the instance level does show the locks.
Drilling down to each instance of a cluster to check sessions locks is not user-friendly and takes time.
Changes
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |