如果连接时候变得较慢 查看oracle日志记录，可能是因为此文件太大，超过2g，
需要定期清理，（如果多用户，记得用root，可能没权限）
查看listener.log？
find / -name listener.log
经查看，竟然高达2g得日志数据，由于一些老旧的os不支持2gb以上的文件，故当listener.log文件
超过2gb时，会出现无法处理新的连接，新的操作系统虽然不会出现这个问题，但我们依然需要对其
进行定期处理清理。
listener log日志文件处理
[oracle@localhost home]$ lsnrctl lsnrctl> set log_status off connecting to (description=(address=(protocol=ipc)(key=extproc1521))) listener parameter "log_status" set to off the command completed successfully lsnrctl> show log_status connecting to (description=(address=(protocol=ipc)(key=extproc1521))) listener parameter "log_status" set to off the command completed successfully lsnrctl> exit [oracle@localhost home]$ find -name listener.log home/oracle/app/oracle/diag/tnslsnr/localhost/listener/trace/listener.log [oracle@localhost ~]$ cd /home/oracle/app/oracle/diag/tnslsnr/localhost/listener/trace/ [oracle@localhost trace]$ mv listener.log listener.log.20191127 [oracle@localhost trace]$ ls listener.log.20191127 ora_2617_140154513196800.trc [oracle@localhost trace]$ lsnrctl lsnrctl> set log_status on connecting to (description=(address=(protocol=ipc)(key=extproc1521))) listener parameter "log_status" set to on the command completed successfully lsnrctl> show log_status connecting to (description=(address=(protocol=ipc)(key=extproc1521))) listener parameter "log_status" set to on the command completed successfully lsnrctl> reload connecting to (description=(address=(protocol=ipc)(key=extproc1521))) the command completed successfully lsnrctl> exit [oracle@localhost trace]$
[oracle@localhost home]$ lsnrctl lsnrctl> set log_status off lsnrctl> show log_status lsnrctl> exit [oracle@localhost home]$ find -name listener.log [oracle@localhost trace]$ mv listener.log listener.log.20191127 lsnrctl> set log_status on lsnrctl> reload
我们通过重命名日志文件之后，会自动生成一个新的listener.log文件。当然也可以进行清空处理，可以先copy一下备份，然后进行清空处理。
总结
以上所述是www.887551.com给大家介绍的处理oracle 监听文件listener.log问题，希望对大家有所帮助