EM 13c : SCAN Listener down in EM Console (Doc ID 2875675.1)

Last updated on MARCH 08, 2023

Applies to:

Symptoms

In Enterprise Manager (EM) Cloud Control SCAN listener is showing as DOWN even if lsnrctl status listener <LISTENER_NAME> is showing up and running.

[oracle@node1 ~]$ lsnrctl status LISTENER_SCAN1

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 08-JUN-2022 13:22:59

Copyright (c) 1991, 2019, Oracle. All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias LISTENER_SCAN1
Version TNSLSNR for Linux: Version 19.0.0.0.0 - Production
Start Date 03-JUN-2022 12:21:56
Uptime 5 days 1 hr. 1 min. 3 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/64bit/app/19.3.0/grid/network/admin/listener.ora
Listener Log File /u01/64bit/app/grid/diag/tnslsnr/node1/listener_scan1/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=host_ip)(PORT=port)))
Services Summary...
Service "<SERVICE>" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "<SERVICE>" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "<SERVICE>" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
The command completed successfully

Incident Summary:

The listener is down: LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 08-JUN-2022 13:41:20 Copyright (c) 1991, 2019, Oracle. All rights reserved. Welcome to LSNRCTL, type "help" for information. LSNRCTL> Connecting to (ADDRESS=(PROTOCOL=TCP)(HOST=host)(PORT=port)) TNS-01189: The listener could not authenticate the user LSNRCTL> .

Cause

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