Enterprise Manager 12c for Oracle Database - Database Locks Do Not Report 'blocking Locks' Or 'User Locks'
Last updated on DECEMBER 07, 2016
Applies to:Enterprise Manager for Oracle Database - Version 126.96.36.199.0 to 188.8.131.52.0 [Release 12.1]
Information in this document applies to any platform.
Access 12c Cloud Control(Any version)
Simulate a blocking session as given below.
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.
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