PROBLEM:
While starting the lister , getting below error.
# lsnrctl start LISTENER_TEST
LSNRCTL for Solaris: Version 12.1.0.2.0 – Production on 03-SEP-2018 09:34:26
Copyright (c) 1991, 2017, Oracle. All rights reserved.
TNS-01106: Listener using listener name LISTENER_DBACLASS has already been started
where ( listener.ora)
LISTENER_TEST =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dbaclasshost)(PORT = 1521))
)
)
SID_LIST_LISTENER_TEST =
(SID_LIST =
(SID_DESC =
(SID_NAME = DBACLASS)
(ORACLE_HOME = /oracle/app/oracle/product/12.1.0.2/dbhome_1)
)
)
We are trying to start LISTENER_TEST, However, the error we are getting is LISTENER_DBACLASS already started. So how these listeners are related?
SOLUTION:
This error will come, when we are trying to start a listener with a port, which is being used by a different running listener. In simple words,
Two listeners cannot have same port.
Check the port being used by LISTENER_DBACLASS.
# lsnrctl status LISTENER_DBACLASS LSNRCTL for Solaris: Version 12.1.0.2.0 - Production on 03-SEP-2018 09:34:41 Copyright (c) 1991, 2017, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=DBACLASS))) STATUS of the LISTENER ------------------------ Alias LISTENER_DBACLASS Version TNSLSNR for Solaris: Version 12.1.0.2.0 - Production Start Date 20-AUG-2018 12:44:00 Uptime 13 days 20 hr. 50 min. 40 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /oracle/app/oracle/product/12.1.0.2/dbhome_1/network/admin/listener.ora Listener Log File /oracle/app/oracle/diag/tnslsnr/dbaclasshost/listener_DBACLASS/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbaclasshost)(PORT=1521))) ----------------->>>>>>>>>>>>>> (DESCRIPTION=(ADDRESS=(PROTOCOL=tcps)(HOST=dbaclasshost)(PORT=5500))(Security=(my_wallet_directory=/oracle/app/oracle/product/12.1.0.2/dbhome_1/ad RAW)) Services Summary... Service "DBACLASS" has 1 instance(s). Instance "DBACLASS", status UNKNOWN, has 1 handler(s) for this service... The command completed successfully
So the listener LISTENER_DBACLSS is using 1521 port. And the listener which we are trying start LISTENER_TEST also contains 1521 port.
So now change the port for LISTENER_TEST and start it.
We have changed from 1521 to 1523 in the listener.ora file
LISTENER_TEST =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dbaclasshost)(PORT = 1523))
)
)
SID_LIST_LISTENER_TEST =
(SID_LIST =
(SID_DESC =
(SID_NAME = DBACLASS)
(ORACLE_HOME = /oracle/app/oracle/product/12.1.0.2/dbhome_1)
)
)
Start the listener.
# lsnrctl start LISTENER_TEST LSNRCTL for Solaris: Version 12.1.0.2.0 - Production on 03-SEP-2018 09:35:45 Copyright (c) 1991, 2017, Oracle. All rights reserved. Starting /oracle/app/oracle/product/12.1.0.2/dbhome_1/bin/tnslsnr: please wait... TNSLSNR for Solaris: Version 12.1.0.2.0 - Production System parameter file is /oracle/app/oracle/product/12.1.0.2/dbhome_1/network/admin/listener.ora Log messages written to /oracle/app/oracle/diag/tnslsnr/dbaclasshost/listener_test/alert/log.xml Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbaclasshost)(PORT=1523))) Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=dbaclasshost)(PORT=1523))) STATUS of the LISTENER ------------------------ Alias LISTENER_TEST Version TNSLSNR for Solaris: Version 12.1.0.2.0 - Production Start Date 03-SEP-2018 09:35:45 Uptime 0 days 0 hr. 0 min. 0 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /oracle/app/oracle/product/12.1.0.2/dbhome_1/network/admin/listener.ora Listener Log File /oracle/app/oracle/diag/tnslsnr/dbaclasshost/listener_test/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbaclasshost)(PORT=1523))) Services Summary... Service "DBACLASS" has 1 instance(s). Instance "DBACLASS", status UNKNOWN, has 1 handler(s) for this service... The command completed successfully
It worked.
GREAT!
It helped, thanks a lot