##########################
## Error
##########################
TNS-12541: TNS:no listener
### Full Error
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = hostp01)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED)
(SID = oralin)))
TNS-12541: TNS:no listener
##########################
# Error Occurred
##########################
Error occured while trying to connect a database using its service name in 10.2.0.3.0 version and also tnsping of service name gives TNS-12541
##########################
## Command Executed
##########################
In terminal
tnsping oralin
##########################
## Issue Description.
##########################
### 11.2.0.3.0
#########################################
# 1) check whether listener is running or not
#########################################
+ASM @ hostp01:/opt/oracle/product/11.2.0.1/grid/network/admin
> ps -ef|grep tns
oracle 16743 2737 0 01:00:52 ? 0:00 /opt/oracle/product/11.2.0.1/grid/bin/tnslsnr LISTENER -inherit
oracle 16747 11537 0 01:00:58 pts/2 0:00 grep tns
From above output, we can see LISTENER is up and running.
#########################################
# 2) check services listened by LISTENER
#########################################
lsnrctl status LISTENER
+ASM @ hostp01:/opt/oracle/product/11.2.0.1/grid/network/admin
> lsnrctl status LISTENER
LSNRCTL for Solaris: Version 11.2.0.1.0 - Production on 17-SEP-2013 01:00:52
Copyright (c) 1991, 2009, Oracle. All rights reserved.
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Solaris: Version 11.2.0.1.0 - Production
Start Date 17-SEP-2013 01:00:52
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /opt/oracle/product/11.2.0.1/grid/network/admin/listener.ora
Listener Log File /opt/oracle/diag/tnslsnr/hostp01/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
The listener supports no services
The command completed successfully
Listener is not listening to any database service. So database is not using this listener.
##########################
## Solution
##########################
#########################################
# 1) check database home ( or ) Grid home listener.ora file
#########################################
Check database home or GRID home listener.ora to find the list of listeners configured and what are the services listening to that.
oralin @ hostp01:/opt/oracle/product/11.1.0.7/db_1/network/admin
> more listener.ora
# listener.ora Network Configuration File: /opt/oracle/product/11.2.0.1/grid/network/admin/listener.ora
# Generated by Oracle configuration tools.
LSNR_11G =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = hostp01)(PORT = 1521))
)
)
SID_LIST_LSNR_11G =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /opt/oracle/product/11.1.0.7/db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME=+ASM)
(SID_NAME = +ASM)
(ORACLE_HOME = /opt/oracle/product/11.2.0.1/grid)
)
(SID_DESC =
(GLOBAL_DBNAME=oralin.example.com)
(SID_NAME = oralin)
(ORACLE_HOME = /opt/oracle/product/11.1.0.7/db_1)
)
)
From the above output, we can see that a listener named " LSNR_11G " is configured in LISTENER.ora and oralin database is listened using this listener.
#########################################
# 2) Start the Listener
#########################################
+ASM @ hostp01:/opt/oracle/product/11.1.0.7/db_1/network/admin
> lsnrctl start LSNR_11G
LSNRCTL for Solaris: Version 11.2.0.1.0 - Production on 17-SEP-2013 03:34:38
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Starting /opt/oracle/product/11.2.0.1/grid/bin/tnslsnr: please wait...
TNSLSNR for Solaris: Version 11.2.0.1.0 - Production
System parameter file is /opt/oracle/product/11.2.0.1/grid/network/admin/listener.ora
Log messages written to /opt/oracle/diag/tnslsnr/hostp01/lsnr_11g/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=hostp01)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias LSNR_11G
Version TNSLSNR for Solaris: Version 11.2.0.1.0 - Production
Start Date 17-SEP-2013 03:34:38
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /opt/oracle/product/11.2.0.1/grid/network/admin/listener.ora
Listener Log File /opt/oracle/diag/tnslsnr/hostp01/lsnr_11g/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=hostp01)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "oralin.example.com" has 1 instance(s).
Instance "oralin", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
+ASM @ hostp01:/opt/oracle/product/11.1.0.7/db_1/network/admin
> ps -ef|grep tns
oracle 16743 2737 0 01:00:52 ? 0:01 /opt/oracle/product/11.2.0.1/grid/bin/tnslsnr LISTENER -inherit
oracle 26233 2737 0 03:34:38 ? 0:00 /opt/oracle/product/11.2.0.1/grid/bin/tnslsnr LSNR_11G -inherit
oracle 26240 11537 0 03:34:53 pts/2 0:00 grep tns
Now the tnsping output is successful and database can be connected.
oralin @ hostp01:/opt/oracle/product/11.1.0.7/db_1/network/admin
> tnsping oralin
TNS Ping Utility for Solaris: Version 11.1.0.7.0 - Production on 17-SEP-2013 04:45:58
Copyright (c) 1997, 2008, Oracle. All rights reserved.
Used parameter files:
/opt/oracle/product/11.1.0.7/db_1/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = hostp01)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED) (SID =
oralin)))
OK (0 msec)
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