Hi,

Sometimes You can get ” The listener supports no services  ” error.

The listener supports no services

Details of error are as follows.

The listener supports no services

[oracle@msdbadm01 ~]$ lsnrctl status

LSNRCTL for Linux: Version 18.0.0.0.0 - Production on 04-OCT-2019 21:28:09

Copyright (c) 1991, 2013, Oracle. All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=msdbadm01)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 18.0.0.0.0 - Production
Start Date 04-OCT-2013 21:11:01
Uptime 0 days 0 hr. 17 min. 8 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /oracle/base/dbhome_1/network/admin/listener.ora
Listener Log File /oracle/base/diag/tnslsnr/msdbadm01/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=msdbadm01)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
The listener supports no services
The command completed successfully

lsnrctl status

This error is related with the listener and registered services of database. Check listener status

[oracle@msdbadm01 ~]$ lsnrctl status listener

Listener should be always started.

Check listener services which services are listening.

lsnrctl services <listener name>

Check the SID parameter known by the listener. If the right SID specified or not in the listener status.

If the related service name and instance don’t exist in the listener status, then set it in the database and register it to database as follows.

SQL> alter system set local_listener='(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.63.34)(PORT=1521)))' scope=both;

SQL> alter system register;

If listener is not running properly, you can create a static listener and start it as follows.

Add the following listener descriptions to the listener.ora file under $ORACLE_HOME/network/admin.

Check your Hostname, Port, DB Name and fill them correctly.

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.63.34)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
)

SID_LIST_LISTENER = 
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = MSDB)
(ORACLE_HOME = /u01/app/db_home_18c )
(SID_NAME = MSDB1 )
)
)

[oracle@msdbadm01 ~]$ lsnrctl start LISTENER

Check listener status as follows, it is listening the Database and its service as follows.

[oracle@msdbadm01 ~]$ lsnrctl status

LSNRCTL for Linux: Version 18.0.0.0.0 - Production on 28-APR-2020 15:44:29

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

Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 18.0.0.0.0 - Production
Start Date 25-MAR-2020 20:34:20
Uptime 33 days 19 hr. 10 min. 8 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/vfxidb01/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.63.34)(PORT=1521)))
Services Summary...
Service "+APX" has 1 instance(s).
Instance "+APX1", status READY, has 1 handler(s) for this service...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "+ASM_DATA" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "+ASM_RECO" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "MSDB" has 1 instance(s).
Instance "MSDB1", status READY, has 1 handler(s) for this service...
Service "MSDBXDB" has 1 instance(s).
Instance "MSDB1", status READY, has 1 handler(s) for this service...

[oracle@msdbadm01 ~]$

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