oracle 监听日志配置文件，大于4G，不在增加，因此需要手工清理。
单实例环境下监听日志存储在Oracle目录下，RAC环境下监听日志存储在Grid用户下。
本次使用Oracle单实例测试清理，本质情况相同（RAC使用Grid用户操作，情况相同）
[ora122@enmodb1 ~]$ lsnrctl status LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 08-MAR-2019 09:38:06 Copyright (c) 1991, 2016, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=)(PORT=1522))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 12.2.0.1.0 - Production Start Date 04-MAR-2019 18:43:31 Uptime 3 days 14 hr. 54 min. 34 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/ora122/product/12.2.0.1/dbhome_1/network/admin/listener.ora Listener Log File /u01/app/ora122/diag/tnslsnr/enmodb1/listener/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=enmodb1)(PORT=1522)))
[ora122@enmodb1 ~]$ lsnrctl
LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 08-MAR-2019 09:38:11
Copyright (c) 1991, 2016, Oracle. All rights reserved.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL> show log
Ambiguous text "log", valid completions are:
log_file log_directory log_status
LSNRCTL> show log_status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=)(PORT=1522)))
LISTENER parameter "log_status" set to ON
The command completed successfully
LSNRCTL>
LSNRCTL> set log_status off
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=)(PORT=1522)))
LISTENER parameter "log_status" set to OFF
The command completed successfully
LSNRCTL> exit
#查询监听状态
Listener Log File /u01/app/ora122/diag/tnslsnr/enmodb1/listener/alert/log.xml
在alert同级别trace目录下
cd /u01/app/ora122/diag/tnslsnr/enmodb1/listener/trace
[ora122@enmodb1 trace]$ du -sm listener.log
2 listener.log
[ora122@enmodb1 trace]$ mv listener.log listener.log_20190308.log
[ora122@enmodb1 trace]$ lsnrctl
LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 08-MAR-2019 09:39:21
Copyright (c) 1991, 2016, Oracle. All rights reserved.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL> show log
Ambiguous text "log", valid completions are:
log_file log_directory log_status
LSNRCTL> set log_status on
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=)(PORT=1522)))
LISTENER parameter "log_status" set to ON
The command completed successfully
LSNRCTL> exit
有新的日志输出即可。
[ora122@enmodb1 trace]$ tail -f listener.log