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回收Oracle的监听器日志文件

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Jun 07, 2016 pm 04:53 PM

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Oracle监听器日志文件(通常叫做listener.log)是一个纯文本文件，它的大小是一直不断增长的，在一个生产Oracle服务器上，DBA会每

　　Oracle监听器日志文件(通常叫做listener.log)是一个纯文本文件，它的大小是一直不断增长的，在一个生产Oracle服务器上，DBA会每日查看该文件，如检查监听器是否有异常停止，是否有恶意攻击连接等，当这个文件特别大的时候，打开和浏览文件内容时可能比较慢，这时可能会想到将当前的日志文件备份一下，然后重新创建一个新的日志文件，，但Oracle的监听器在运行时是不允许对其日志文件做删除，重命名操作，于是只有停止监听器，重命名后，再启动监听器，启动时会自动创建一个新的监听器日志文件，但这样客户端连接就会断开，本文介绍一种方法在不停止监听器的情况下，重命名监听器日志文件。

　　在Windows平台下：

　　C:\> cd \oracle\ora92\network\log #切换到监听器日志文件所在目录

　　C:\oracle\ora92\network\log> lsnrctl set log_status off #将监听器日志文件暂时脱机

　　C:\oracle\ora92\network\log> rename listener.log listener.old #重命名日志文件，可以加上日期

　　C:\oracle\ora92\network\log> lsnrctl set log_status on #将监听器日志文件联机，会自动重新创建一个新的日志文件

　　在Linux/Unix平台下：

　　% cd /u01/app/oracle/product/9.2.0/network/log

　　% lsnrctl set log_status off

　　% mv listener.log listener.old

　　% lsnrctl set log_status on

　　这样重命名后，就可以将listener.old拷贝到DBA的工作电脑上进行深入分析，当遇到黑客攻击时，还可以保留该文件作为证据。

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