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 日志切割软件cronolog
 
下载地址: http://cronolog.org/download/cronolog-1.6.2.tar.gz
 
1.安装过程
tar zxvf cronolog-1.6.2.tar.gz
cd cronolog-1.6.2
./configure
make
make install
 
2.修改Apache的配置文件httpd.conf,加入以下代码 
ErrorLog "|/usr/local/sbin/cronolog /usr/local/apache2.2.22/logs/error_log_%Y%m%d"
CustomLog "|/usr/local/sbin/cronolog /usr/local/apache2.2.22/logs/access_log_%Y%m%d" combined
如果是虚拟主机,则修改http_vhost.conf,例如
<VirtualHost *:80>
    ServerAdmin ngnix@qq.com
    DocumentRoot "/usr/local/apache2.2.22/htdocs/myisam.com"
    ServerName myisam.com
    ServerAlias bbs.myisam.com
    ErrorLog "|/usr/local/sbin/cronolog /usr/local/apache2.2.22/logs/myisam.com-error_log_%Y%m%d"
    CustomLog "|/usr/local/sbin/cronolog /usr/local/apache2.2.22/logs/myisam.com-access_log_%Y%m%d" 
 
combined
</VirtualHost>
 
<VirtualHost *:80>
    ServerAdmin ngnix@qq.com
    DocumentRoot "/usr/local/apache2.2.22/htdocs/innodb.com"
    ServerName innodb.com
    ServerAlias bbs.innodb.com
    ErrorLog "|/usr/local/sbin/cronolog /usr/local/apache2.2.22/logs/innodb.com-error_log_%Y%m%d"
    CustomLog "|/usr/local/sbin/cronolog /usr/local/apache2.2.22/logs/innodb.com-access_log_%Y%m%d" 
 
combined
</VirtualHost>
 
4.编写脚本dellogs.sh,可以定时删除过期的日志(如下10天前)
#!/bin/bash
find /usr/local/apache2.2.22/logs -mtime +10 -name "innodb.com-*" -exec rm -rf {} \;
 
5.加入crontab
crontab -e
* 2 * * * /usr/local/bin/dellogs.sh > /dev/null  每天凌晨2点执行脚本
 
apache自带日志切割rotatelogs
 
1.直接修改httpd.conf或者虚拟主机配置文件httpd_vhost.conf
ErrorLog "|/usr/local/apache2.2.22/bin/rotatelogs /usr/local/apache/logs/myisam_error_log_%Y-%m-%d
 
-%H_%M_%S 86400"   (86440单位是秒意思是1天)
CustomLog "|/usr/local/apache2.2.22/bin/rotatelogs /usr/local/apache/logs/myisam_access_log_%Y-%m-
 
%d-%H_%M_%S 86400" common 
 
也可以定义日志大小,例如
ErrorLog "|/usr/local/apache2.2.22/bin/rotatelogs /usr/local/apache/logs/myisam_error_log_%Y-%m-%d
 
-%H_%M_%S 5M"   (5M意思是每5M就生成新的日志)
CustomLog "|/usr/local/apache2.2.22/bin/rotatelogs /usr/local/apache/logs/myisam_access_log_%Y-%m-
 
%d-%H_%M_%S 5M" common 
 
注意:rotatelogs设置的时候如果有多个虚拟主机,那么每个虚拟主机都需要配置,不然不会生成我们需要的日
 
志。
 
这两个程序还有一点不同: cronolog 如果日志是放在某个不存在的路径则会自动创建目录,而使用 rotatelogs 
 
时不能自动创建。
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