Oracle 監(jiān)聽器是一個服務(wù)器端程序，用于監(jiān)聽所有來自客戶端的請求，并為其提供
數(shù)據(jù)庫服務(wù)。因此對監(jiān)聽器的管理與維護(hù)相當(dāng)重要。
本文主要描述對Oracle監(jiān)聽器日志文件的配置與管理。
一、監(jiān)聽器日志特性
1、監(jiān)聽器日志是一個純文本文件，通常位于$ORACLE_HOME/network/log目錄下，與sqlnet.log日志文件處于同一路徑
2、其缺省的文件名為listener.log。對于非缺省的監(jiān)聽器，則產(chǎn)生的日志文件通常為listenername.log
3、該文件缺省由監(jiān)聽器自動創(chuàng)建，當(dāng)日志文件丟失時或不存在時，會自動重新創(chuàng)建一個同名的文件，與alert_<SID>.log文件類似
4、該文件的尺寸會不斷自動增長，當(dāng)尺寸過大時或不便于閱讀時，考慮將其備份
5、Oracle監(jiān)聽器在運(yùn)行時不允許對日志文件做刪除，重命名操作
6、可以設(shè)置日志狀態(tài)為ON或OFF來實(shí)現(xiàn)啟用或關(guān)閉日志
二、設(shè)置日志文件目錄及路徑
1、設(shè)置日志文件目錄的兩種方法
lsnrctl SET LOG_DIRECTORY directory
LSNRCTL> SET LOG_DIRECTORY /usr/oracle/admin/log |
2、設(shè)置日志文件的兩種方法
lsnrctl SET LOG_FILE file_name
LSNRCTL> SET LOG_FILE file_name |
3、設(shè)置日志的狀態(tài)
lsnrctl SET LOG_STATUS {on | off} LSNRCTL> SET LOG_STATUS {on | off} |
4、演示設(shè)置
a）切換到日志目錄查看日志文件
[oracle@test ~]$ cd $ORACLE_HOME/network/log
[oracle@test log]$ ls -hltr
total 348K
-rw-r--r-- 1 oracle oinstall 305K Apr 6 05:30 listener.log
-rw-r--r-- 1 oracle oinstall 26K Jun 27 01:52 listener_demo92.log |
b）查看當(dāng)前監(jiān)聽器的狀態(tài)
[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）設(shè)置監(jiān)聽器目錄及日志文件
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）查看新路徑下產(chǎn)生的日志文件
[oracle@test admin]$ cd /home/oracle/log
[oracle@test log]$ ls -hltr
total 16K
-rw-r--r-- 1 oracle oinstall 41 Jun 27 02:11 listener_demo92.log -->設(shè)置目錄之后生成的
-rw-r--r-- 1 oracle oinstall 113 Jun 27 02:12 listener_test.log -->設(shè)置日志文件名之后的新日志文件
[oracle@test log]$ ls -hltr -->隔段時間查看，原來的日志文件不再增長，使用設(shè)定的日志文件名記錄日志
total 16K
-rw-r--r-- 1 oracle oinstall 41 Jun 27 02:11 listener_demo92.log
-rw-r--r-- 1 oracle oinstall 1.3K Jun 27 02:17 listener_test.log |
e）查看listener.ora配置文件的變化
[oracle@test admin]$ more listener.ora
#----ADDED BY TNSLSNR 27-JUN-2011 02:12:37---
LOG_DIRECTORY_listener_demo92 = /home/oracle/log
LOG_FILE_listener_demo92 = listener_test.log
LOGGING_listener_demo92 = ON
#--------------------------------------------
三、日志文件的備份與重命名 通常情況下，需要停止監(jiān)聽器來對日志文件進(jìn)行備份，下面使用不停止監(jiān)聽的情況下對日志文件重命名以實(shí)現(xiàn)備份
1、Windows平臺的處理
C:\>cd \oracle\ora92\network\log -->切換到監(jiān)聽器日志文件所在目錄
C:\oracle\ora92\network\log> lsnrctl set log_status off -->暫停或脫機(jī)記錄日志文件
C:\oracle\ora92\network\log> rename listener.log listener.old -->重命名日志文件，一般加上日期
C:\oracle\ora92\network\log> lsnrctl set log_status on -->聯(lián)機(jī)監(jiān)聽器日志文件，會自動重新創(chuàng)建一個新的日志文件 |
2、Unix/Linux平臺的處理
$ lsnrctl set log_status off
$ mv listener.log listener.old -->另一種方法，cp listener.log /log/bak/. 然后 cp /dev/null >listener.log
$ lsnrctl set log_status on |
3、演示Linux平臺下重命名日志文件
[oracle@test ~]$ cd /home/oracle/log
[oracle@test log]$ lsnrctl set log_status off -->如果存在密碼，應(yīng)使用LSNRCTL界面來完成
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 |