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Oracle 监听器日志配置与管理
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-- Oracle 监听器日志配置与管理
--======================== Oracle 监听器是一个服务器端程序,用于监听所有来自客户端的请求,并为其提供数据库服务。因此对监听器的管理与维护相当重要。 本文主要描述对Oracle监听器日志文件的配置与管理。有关监听器的描述请参考
配置 ORACLE 客户端连接到数据库 配置非默认端口的动态服务注册
一、监听器日志特性
1. 监听器日志是一个纯文本文件,通常位于$ORACLE_HOME/network/log目录下,与sqlnet.log日志文件处于同一路径 2. 其缺省的文件名为listener.log。对于非缺省的监听器,则产生的日志文件通常为listenername.log 3. 该文件缺省由监听器自动创建,当日志文件丢失时或不存在时,会自动重新创建一个同名的文件,与alert_<SID>.log文件类似 4. 该文件的尺寸会不断自动增长,当尺寸过大时或不便于阅读时,考虑将其备份 5. Oracle监听器在运行时不允许对日志文件做删除,重命名操作 6. 可以设置日志状态为ON或OFF来实现启用或关闭日志 二、设置日志文件目录及路径
1. 设置日志文件目录的两种方法
[sql] view plain copy print? lsnrctl SET LOG_DIRECTORY directory LSNRCTL> SET LOG_DIRECTORY /usr/oracle/admin/log 2. 设置日志文件的两种方法 [sql] view plain copy print? lsnrctl SET LOG_FILE file_name LSNRCTL> SET LOG_FILE file_name 3. 设置日志的状态 [sql] view plain copy print? lsnrctl SET LOG_STATUS {on | off} LSNRCTL> SET LOG_STATUS {on | off} 4. 演示设置 a. 切换到日志目录查看日志文件 [sql] view plain copy print? [oracle@test ~]$ cd $ORACLE_HOME/network/log [oracle@test log]$ ls -hltr total 348K -rw-r -rw-r b. 查看当前监听器的状态 [sql] view plain copy print? [oracle@test log]$ lsnrctl status listener_demo92 LSNRCTL for Linux: Version 9.2.0.8.0 - Production on 27-JUN-2011 01:54:31 Copyright (c) 1991, 2006, Oracle Corporation. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=test)(PORT=1521))) STATUS of the LISTENER Alias listener_demo92 Version TNSLSNR for Linux: Version 9.2.0.8.0 - Production Start Date 27-JUN-2011 01:52:18 Uptime 0 days 0 hr. 2 min. 13 sec Trace Level off Security ON SNMP OFF Listener Parameter File /oracle/92/network/admin/listener.ora Listener Log File /oracle/92/network/log/listener_demo92.log Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=test)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC))) Services Summary... Service "demo92" has 1 instance(s). Instance "demo92", status READY, has 1 handler(s) for this service... The command completed successfully c. 设置监听器目录及日志文件
[sql] view plain copy print? LSNRCTL> set current_listener listener_demo92 Current Listener is listener_demo92 LSNRCTL> set password Password: The command completed successfully LSNRCTL> set log_directory /home/oracle/log Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=test)(PORT=1521))) listener_demo92 parameter "log_directory" set to /home/oracle/log The command completed successfully LSNRCTL> set log_file listener_test.log Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=test)(PORT=1521))) listener_demo92 parameter "log_file" set to listener_test.log The command completed successfully LSNRCTL> set log_status on Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=test)(PORT=1521))) listener_demo92 parameter "log_status" set to ON The command completed successfully LSNRCTL> save_config Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=test)(PORT=1521))) Saved listener_demo92 configuration parameters. Listener Parameter File /oracle/92/network/admin/listener.ora Old Parameter File /oracle/92/network/admin/listener.bak The command completed successfully LSNRCTL> exit d. 查看新路径下产生的日志文件 [sql] view plain copy print? [oracle@test admin]$ cd /home/oracle/log [oracle@test log]$ ls -hltr total 16K -rw-r -rw-r [oracle@test log]$ ls -hltr total 16K -rw-r -rw-r e. 查看listener.ora配置文件的变化 [sql] view plain copy print? [oracle@test admin]$ more listener.ora # LOG_DIRECTORY_listener_demo92 = /home/oracle/log LOG_FILE_listener_demo92 = listener_test.log LOGGING_listener_demo92 = ON # 三、日志文件的备份与重命名
通常情况下,需要停止监听器来对日志文件进行备份,下面使用不停止监听的情况下对日志文件重命名以实现备份 1. Windows平台的处理 [sql] view plain copy print? C:\>cd \oracle\ora92\network\log C:\oracle\ora92\network\log> lsnrctl set log_status off C:\oracle\ora92\network\log> rename listener.log listener.old C:\oracle\ora92\network\log> lsnrctl set log_status on 2. Unix/Linux平台的处理 [sql] view plain copy print? $ lsnrctl set log_status off $ mv listener.log listener.old $ lsnrctl set log_status on 3. 演示Linux平台下重命名日志文件 [sql] view plain copy print? [oracle@test ~]$ cd /home/oracle/log [oracle@test log]$ lsnrctl set log_status off LSNRCTL for Linux: Version 9.2.0.8.0 - Production on 27-JUN-2011 02:41:09 Copyright (c) 1991, 2006, Oracle Corporation. All rights reserved. Connecting to (ADDRESS=(PROTOCOL=tcp)(PORT=1521)) LISTENER parameter "log_status" set to OFF The command completed successfully [oracle@test log]$ mv listener_test.log listener_test.old [oracle@test log]$ lsnrctl set log_status on LSNRCTL for Linux: Version 9.2.0.8.0 - Production on 27-JUN-2011 02:41:31 Copyright (c) 1991, 2006, Oracle Corporation. All rights reserved. Connecting to (ADDRESS=(PROTOCOL=tcp)(PORT=1521)) LISTENER parameter "log_status" set to ON The command completed successfully
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