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2014 年 10 月 20 日LA/NMP

开启PHP-FPM的slow log日志来做性能调优或问题分析

启用 php-fpm 的 slow log 日志,查看执行时间过长的php文件,既可做程序调优,也可作为502等各种问题的分析方法

具体操作方法也简单,就修改一个文件,执行命令:

# vi /usr/local/php/etc/php-fpm.conf     //文件位置请根据自己的安装位置进行调整

PHP 5.3.3 之前版本设置如下:

The timeout (in seconds) for serving a single request after which the worker process will be terminated
Should be used when ‘max_execution_time’ ini option does not stop script execution for some reason
‘0s’ means ‘off’
<value name=”request_terminate_timeout”>10s</value>
The timeout (in seconds) for serving of single request after which a php backtrace will be dumped to slow.log file
‘0s’ means ‘off’
<value name=”request_slowlog_timeout”>1s</value>
The log file for slow requests
<value name=”slowlog”>logs/slow.log</value>

PHP 5.3.3 之后版本设置如下:

; The timeout for serving a single request after which a PHP backtrace will be
; dumped to the ‘slowlog’ file. A value of ‘0s’ means ‘off’.
; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
; Default Value: 0
request_slowlog_timeout = 1s

; The log file for slow requests
; Default Value: /usr/local/php/log/php-fpm.log.slow
slowlog = /usr/local/php/log/php-fpm.log.slow

; The timeout for serving a single request after which the worker process will
; be killed. This option should be used when the ‘max_execution_time’ ini option
; does not stop script execution for some reason. A value of ‘0’ means ‘off’.
; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
; Default Value: 0
request_terminate_timeout = 10s

注:request_terminate_timeout 将执行时间太长的进程直接终止

request_slowlog_timeout 将执行过慢的文件写入日志

以后即可根据慢执行日志 /usr/local/php/logs/slow.log 来优化程序文件了!

日志信息 »

该日志于2014-10-20 11:35由 Apple 发表在LA/NMP分类下, 评论已关闭。 如果觉得这篇文章不错,可以分享给你的朋友们~ :)
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