EM12c: Target Database Shows Status as UP instead of DOWN if the Listener is DOWN in Enterprise Manager 12c Cloud Control
Last updated on JULY 31, 2014
Applies to:Enterprise Manager for Oracle Database - Version 188.8.131.52.0 to 184.108.40.206.0 [Release 12.1]
Information in this document applies to any platform.
When a listener on a monitored host is shut down, EM shows the correct status of DOWN for the listener, but a database served by this listener shows a perpetually UP status, even without the listener available.
The status from the database target page still shows as UP, with this message:
IO Error: The Network Adapter could not establish the connection The Connect
Descriptor was (DESCRIPTION=(ADDRESS_LIST =
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