导读 | apache php站点负载时不时高负载,但是因为上面的站点太多,太难排查到底是哪个站点引起的。nginx php-fpm倒是好查,他有一个slowlog,可以快速的定位到出现故障的php代码位置,使用xdebug来查问题太复杂。写mod_log_slow的灵感来源于mysql的slowlog. |
1. 编译安装 mod_log_slow
1) 解压
tar zxf mod_log_slow-1.0.7.tar.gz cd mod_log_slow
或者可以从github中检出
git clone git://github.com/yokawasa/mod_log_slow.git cd mod_log_slow
2) 打开Makefile并且修改变量ap_basedir
#vi Makefile ap_basedir=/改成你的apache安装路径 # make # make install
2. 配置apache
2.1 加载模块
LoadModule log_slow_module modules/mod_log_slow.so
2.2 配置虚拟主机
<VirtualHost *:80> ServerName localhost DocumentRoot /usr/local/apache/htdocs ErrorLog logs/error_log LogLevel debug CustomLog logs/access_log common CustomLog logs/transfer_log "%h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-Agent}i" "%{logslow-id}n" "%{logslow-time}n"" ## (VirtualHost) mod_log_slow configuration LogSlowEnabled On LogSlowLongRequestTime 100 LogSlowFileName /usr/local/apache/logs/slow_log LogSlowTimeFormat "[%Y-%m-%d %H:%M:%S]" LogSlowBufferedLogs Off </VirtualHost>
3. 重启
service httpd restart
项目地址:http://code.google.com/p/modlogslow/
原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/111593.html