如何正确的更改监听器日志文件名称
　　如果你的数据库监听器日志出现了问题，你可以用set log_file命令重新定位一个日志文件。  
　　下面我们来介绍两个命令：  




LSNRCTL> set current_listener  
LSNRCTL> set log_file .log  
　　注释：使用set current_listener可以访问非缺省监听器，使用set log_file更改名称后，原来有问题的日志文件可以清除或实现日志重定位：  




oracle@jumper admin]$ lsnrctl

LSNRCTL for Linux: Version 9.2.0.4.0 - Production
on 10-NOV-2006 16:54:16

Copyright (c) 1991, 2002,
Oracle
Corporation.  All rights reserved.

Welcome to LSNRCTL, type "help" for information.

LSNRCTL> set current_listener LISTENER1
Current Listener is LISTENER1
LSNRCTL> set log_file
Parameter Value: a.log
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
LISTENER1 parameter "log_file" set to a.log
The command completed successfully
LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
STATUS of the LISTENER
------------------------
Alias        LISTENER1
Version      TNSLSNR for Linux: Version 9.2.0.4.0 - Production
Start Date    10-NOV-2006 16:54:12
Uptime        0 days 0 hr. 2 min. 6 sec
Trace Level  off
Security      OFF
SNMP          OFF
Listener Parameter File  
/opt/oracle/product/9.2.0/network/admin/listener.ora
Listener Log File        
/opt/oracle/product/9.2.0/network/log/a.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
(DESCRIPTION=(ADDRESS=
(PROTOCOL=tcp)(HOST=172.16.33.11)(PORT=1521)))
Services Summary...
Service "PL*tProc" has 1 instance(s).
  Instance "PL*tProc", status UNKNOWN,
has 1 handler(s) for this service...
Service "conner" has 1 instance(s).
  Instance "conner", status UNKNOWN,
has 1 handler(s) for this service...
Service "eygle" has 1 instance(s).
  Instance "eygle", status UNKNOWN,
has 1 handler(s) for this service...
The command completed successfully
LSNRCTL>  
　　加入你需要将此修改永久化，你需要使用save_config命令来保存一下：  




LSNRCTL> save_config
Connecting to (DESCRIPTION=
(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
Saved LISTENER1 configuration parameters.
Listener Parameter File /opt/oracle/product
/9.2.0/network/admin/listener.ora
Old Parameter File /opt/oracle/product/9.2.0
/network/admin/listener.bak
The command completed successfully  
　　至此listener.ora文件会被增加如下记录：  




[oracle@jumper oracle]$ tail -5 /opt/oracle
/product/9.2.0/network/admin/listener.ora

#----ADDED BY TNSLSNR 14-NOV-2006 16:39:12---
LOG_FILE_LISTENER1 = a.log
#----------------------------------