EM 12c: Listeners Are Suddenly Showing Down After an Oracle Home Property Change
Last updated on SEPTEMBER 19, 2017
Applies to:Enterprise Manager for Oracle Database - Version 220.127.116.11.0 to 18.104.22.168.0 [Release 12.1]
Information in this document applies to any platform.
All listeners were working fine but suddenly they shows down with the following error:
Although a Listener with name "LISTENER", is running on this host at port: "nnnn", it was not started using this target's "LISTENER.ORA" file. CORRECTIVE ACTION: To monitor this "EM Listener Target" with its present configuration, you must stop the currently running listener process, and start it again using the Listener Parameter file: oracle_home/network/admin/listener.ora . Alternatively, you can update this target's "LISTENER.ORA Location" parameter with the location of the currently running Listener, which was started using:oracle_home/network/admin/listener.ora.
The following alert is sent:
The LISTENERNAME is down: LISTENERNAME not found in <directory>
2015-01-29 11:25:39,767 [1068:8F50FC3F:GC.DPExecutor.12 (CDynamic:oracle_listener.LISTENER_name)] INFO - Loading target: [oracle_listener.LISTENER_name$8] dynamic info
2015-01-29 11:25:40,163 [35:2BCC238C] INFO - Unsuspended 5 collections for target [oracle_listener.name] because of static properties change
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