对于DBA来说,启动和关闭Oracle监听器是很基础的任务,但是Linux系统管理员或者程序员有时也需要在开发数据库中做一些基本的DBA操作,因此了解一些基本的管理操作对他们来说很重要。
本文将讨论用LSNRCTL命令启动、关闭和查看监听器的状态的方法。
怎样启动、关闭和重新启动oracle监听器
在启动、关闭或者重启oracle监听器之前确保使用lsnrctl status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
如果oracle监听器没用运行,你将得到如下的信息
view plaincopy to clipboardprint? $ lsnrctl status LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:27:39 Copyright (c) 1991, 2007, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521))) TNS-12541: TNS:no listener TNS-12560: TNS:protocol adapter error TNS-00511: No listener Linux Error: 111: Connection refused Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC))) TNS-12541: TNS:no listener TNS-12560: TNS:protocol adapter error TNS-00511: No listener Linux Error: 2: No such file or directory $ lsnrctl status LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:27:39 Copyright (c) 1991, 2007, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521))) TNS-12541: TNS:no listener TNS-12560: TNS:protocol adapter error TNS-00511: No listener Linux Error: 111: Connection refused Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC))) TNS-12541: TNS:no listener TNS-12560: TNS:protocol adapter error TNS-00511: No listener Linux Error: 2: No such file or directory |
如果oracle监听器正在运行,你将得到如下信息
view plaincopy to clipboardprint? $ lsnrctl status LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:27:02 Copyright (c) 1991, 2007, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521))) STATUS of the LISTENER ———————— Alias LISTENER Version TNSLSNR for Linux: Version 11.1.0.6.0 – Production Start Date 29-APR-2009 18:43:13 Uptime 6 days 21 hr. 43 min. 49 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/11.1.0/network/admin/listener.ora Listener Log File /u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml Listening Endpoints Summary… (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC))) Services Summary… Service “devdb” has 1 instance(s). Instance “devdb”, status UNKNOWN, has 1 handler(s) for this service… Service “devdb.thegeekstuff.com” has 1 instance(s). Instance “devdb”, status READY, has 1 handler(s) for this service… Service “devdbXDB.thegeekstuff.com” has 1 instance(s). Instance “devdb”, status READY, has 1 handler(s) for this service… Service “devdb_XPT.thegeekstuff.com” has 1 instance(s). Instance “devdb”, status READY, has 1 handler(s) for this service… The command completed successfully $ lsnrctl status LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:27:02 Copyright (c) 1991, 2007, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521))) STATUS of the LISTENER ———————— Alias LISTENER Version TNSLSNR for Linux: Version 11.1.0.6.0 – Production Start Date 29-APR-2009 18:43:13 Uptime 6 days 21 hr. 43 min. 49 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/11.1.0/network/admin/listener.ora Listener Log File /u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml Listening Endpoints Summary… (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC))) Services Summary… Service “devdb” has 1 instance(s). Instance “devdb”, status UNKNOWN, has 1 handler(s) for this service… Service “devdb.thegeekstuff.com” has 1 instance(s). Instance “devdb”, status READY, has 1 handler(s) for this service… Service “devdbXDB.thegeekstuff.com” has 1 instance(s). Instance “devdb”, status READY, has 1 handler(s) for this service… Service “devdb_XPT.thegeekstuff.com” has 1 instance(s). Instance “devdb”, status READY, has 1 handler(s) for this service… The command completed successfully |
2.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]。
view plaincopy to clipboardprint? $ lsnrctl start LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:27:42 Copyright (c) 1991, 2007, Oracle. All rights reserved. Starting /u01/app/oracle/product/11.1.0/bin/tnslsnr: please wait… TNSLSNR for Linux: Version 11.1.0.6.0 – Production System parameter file is /u01/app/oracle/product/11.1.0/network/admin/listener.ora Log messages written to /u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521))) Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC))) Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521))) STATUS of the LISTENER ———————— Alias LISTENER Version TNSLSNR for Linux: Version 11.1.0.6.0 – Production Start Date 04-APR-2009 16:27:42 Uptime 0 days 0 hr. 0 min. 0 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/11.1.0/network/admin/listener.ora Listener Log File /u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml Listening Endpoints Summary… (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC))) Services Summary… Service “devdb” has 1 instance(s). Instance “devdb”, status UNKNOWN, has 1 handler(s) for this service… The command completed successfully $ lsnrctl start LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:27:42 Copyright (c) 1991, 2007, Oracle. All rights reserved. Starting /u01/app/oracle/product/11.1.0/bin/tnslsnr: please wait… TNSLSNR for Linux: Version 11.1.0.6.0 – Production System parameter file is /u01/app/oracle/product/11.1.0/network/admin/listener.ora Log messages written to /u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521))) Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC))) Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.2)(PORT=1521))) STATUS of the LISTENER ———————— Alias LISTENER Version TNSLSNR for Linux: Version 11.1.0.6.0 – Production Start Date 04-APR-2009 16:27:42 Uptime 0 days 0 hr. 0 min. 0 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/11.1.0/network/admin/listener.ora Listener Log File /u01/app/oracle/diag/tnslsnr/devdb/listener/alert/log.xml Listening Endpoints Summary… (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.2)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC))) Services Summary… Service “devdb” has 1 instance(s). Instance “devdb”, status UNKNOWN, has 1 handler(s) for this service… The command completed successfully |
3.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]
view plaincopy to clipboardprint? $ lsnrctl stop LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:27:37 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 $ lsnrctl stop LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:27:37 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 |
4.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。
view plaincopy to clipboardprint? $ 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 $ 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
1.查看所有的监听器命令
lsnrctl 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. view plaincopy to clipboardprint? $ lsnrctl help LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:12:09 Copyright (c) 1991, 2007, Oracle. All rights reserved. The following operations are available An asterisk (*) denotes a modifier or extended command: start stop status services version reload save_config trace spawn change_password quit exit set* show* $ lsnrctl help LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:12:09 Copyright (c) 1991, 2007, Oracle. All rights reserved. The following operations are available An asterisk (*) denotes a modifier or extended command: start stop status services version reload save_config trace spawn change_password quit exit set* show* |
2.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
view plaincopy to clipboardprint? $ lsnrctl help show LSNRCTL for Linux: Version 11.1.0.6.0 – Production on 04-APR-2009 16:22:28 Copyright (c) 1991, 2007, Oracle. All rights reserved. The following operations are available after show An asterisk (*) denotes a modifier or extended command: rawmode displaymode rules trc_file trc_directory trc_level log_file log_directory log_status current_listener inbound_connect_timeout startup_waittime snmp_visible save_config_on_stop dynamic_registration |
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