在启动、关闭或者重启oracle监听器之前确保使用
lsnrctl status (listener control 监听控制的简拼)
命令检查oracle监听器的状态。除了得到监听器的状态之外，你还可以从lsnrctl status命令的输出中得到如下的信息：
监听器的启动时间
监听器的运行时间
监听器参数文件listener.ora的位置，通常位于$ORACLE_HOME/network/admin目录下
监听器日志文件的位置
1.如果oracle监听器没用运行，你将得到如下的信息
[c-sharp] view plain copy
1. $ lsnrctl status
2.
3. LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 04-APR-2009 16:27:39
4.
5. Copyright (c) 1991, 2007, Oracle. All rights reserved.
6.
7. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521)))
8. TNS-12541: TNS:no listener
9. TNS-12560: TNS:protocol adapter error
10. TNS-00511: No listener
11. Linux Error: 111: Connection refused
12. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
13. TNS-12541: TNS:no listener
14. TNS-12560: TNS:protocol adapter error
15. TNS-00511: No listener
16. Linux Error: 2: No such file or directory
? 2.如果oracle监听器正在运行，你将得到如下信息
[c-sharp] view plain copy
1. $ lsnrctl status
2.
3. LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 04-APR-2009 16:27:02
4.
5. Copyright (c) 1991, 2007, Oracle. All rights reserved.
6.
7. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521)))
8. STATUS of the LISTENER
9. ————————
10. Alias LISTENER
11. Version TNSLSNR for Linux: Version 11.1.0.6.0 - Production
12. Start Date 29-APR-2009 18:43:13
13. Uptime 6 days 21 hr. 43 min. 49 sec
14. Trace Level off
15. Security ON: Local OS Authentication
16. SNMP OFF
17. Listener Parameter File /u01/app/oracle/product/11.1.0/network/admin/listener.ora
18. Listener Log File /u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml
19. Listening Endpoints Summary…
20. (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521)))
21. (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
22. Services Summary…
23. Service “devdb” has 1 instance(s).
24. Instance “devdb”, status UNKNOWN, has 1 handler(s) for this service…
25. Service “devdb.thegeekstuff.com” has 1 instance(s).
26. Instance “devdb”, status READY, has 1 handler(s) for this service…
27. Service “devdbXDB.thegeekstuff.com” has 1 instance(s).
28. Instance “devdb”, status READY, has 1 handler(s) for this service…
29. Service “devdb_XPT.thegeekstuff.com” has 1 instance(s).
30. Instance “devdb”, status READY, has 1 handler(s) for this service…
31. The command completed successfully 3.启动oracle监听器
如果oracle监听器没用运行，你可以用lsnrctl start命令启动oracle监听器，该命令将启动所有的监听器，如果你只想启动特定的监听器，可以再start后面指定监听器的名字，例如：lsnrctl start [listener-name][c-sharp] view plain copy
1. $ lsnrctl start
2.
3. LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 04-APR-2009 16:27:42
4.
5. Copyright (c) 1991, 2007, Oracle. All rights reserved.
6.
7. Starting /u01/app/oracle/product/11.1.0/bin/tnslsnr: please wait…
8.
9. TNSLSNR for Linux: Version 11.1.0.6.0 - Production
10. System parameter file is /u01/app/oracle/product/11.1.0/network/admin/listener.ora
11. Log messages written to /u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml
12. Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521)))
13. Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
14.
15. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521)))
16. STATUS of the LISTENER
17. ————————
18. Alias LISTENER
19. Version TNSLSNR for Linux: Version 11.1.0.6.0 - Production
20. Start Date 04-APR-2009 16:27:42
21. Uptime 0 days 0 hr. 0 min. 0 sec
22. Trace Level off
23. Security ON: Local OS Authentication
24. SNMP OFF
25. Listener Parameter File /u01/app/oracle/product/11.1.0/network/admin/listener.ora
26. Listener Log File /u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml
27. Listening Endpoints Summary…
28. (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521)))
29. (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
30. Services Summary…
31. Service “devdb” has 1 instance(s).
32. Instance “devdb”, status UNKNOWN, has 1 handler(s) for this service…
33. The command completed successfully 4.关闭oracle监听器
如果oracle监听器正在运行，可以使用lsnrctl stop命令关闭oracle监听器，该命令将关闭所有的监听器，如果你只想关闭特定的监听器，可以再stop后面指定监听器的名字，例如：lsnrctl stop [listener-name][c-sharp] view plain copy
1. $ lsnrctl stop
2.
3. LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 04-APR-2009 16:27:37
4.
5. Copyright (c) 1991, 2007, Oracle. All rights reserved.
6.
7. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521)))
8. The command completed successfully 5.重启oracle监听器
用lsnrctl reload重启监听器，此命令可以代替lsnrctl stop和lsnrctl start。重启将会在不需要关闭和启动监听器的情况下读取listener.ora的配置。
[c-sharp] view plain copy
# $ lsnrctl reload
#
# LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 04-APR-2009 17:03:31
#
# Copyright (c) 1991, 2007, Oracle. All rights reserved.
#
# Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521)))
# The command completed successfully
Oracle监听器帮助
nrctl hep命令可以显示所有可用的监听器命令。在oracle11g中其输出如下：
start - Start the Oracle listener
stop - Stop the Oracle listener
status - Display the current status of the Oracle listener
services - Retrieve the listener services information
version - Display the oracle listener version information
reload - This will reload the oracle listener SID and parameter files. This is equivalent to lsnrctl stop and lsnrctl start.
save_config - This will save the current settings to the listener.ora file and also take a backup of the listener.ora file before overwriting it. If there are no changes, it will display the message “No changes to save for LISTENER”
trace - Enable the tracing at the listener level. The available options are ‘trace OFF’, ‘trace USER’, ‘trace ADMIN’ or ‘trace SUPPORT’
spawn - Spawns a new with the program with the spawn_alias mentioned in the listener.ora file
change_password - Set the new password to the oracle listener (or) change the existing listener password.
show - Display log files and other relevant listener information.
[c-sharp] view plain copy
1. $ lsnrctl help
2.
3. LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 04-APR-2009 16:12:09
4.
5. Copyright (c) 1991, 2007, Oracle. All rights reserved.
6.
7. The following operations are available
8. An asterisk (*) denotes a modifier or extended command:
9.
10. start stop status
11. services version reload
12. save_config trace spawn
13. change_password quit exit
14. set* show* 得到指定监听器命令的详细帮助信息
可以使用lsnrctl help得到指定的命令的详细帮助信息。如下所示
[c-sharp] view plain copy
1. $ lsnrctl help show
2.
3. LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 04-APR-2009 16:22:28
4.
5. Copyright (c) 1991, 2007, Oracle. All rights reserved.
6.
7. The following operations are available after show
8. An asterisk (*) denotes a modifier or extended command:
9.
10. rawmode displaymode
11. rules trc_file
12. trc_directory trc_level
13. log_file log_directory
14. log_status current_listener
15. inbound_connect_timeout startup_waittime
16. snmp_visible save_config_on_stop
17. dynamic_registration