1、PHP-fpm 配置文件里 rlimit_files的值 要与系统的打开连接数一致
1）查看系统文件打开连接数
[root@iZ94eveq0q4Z ~]# ulimit -n 65535
2）查看一下PHP-fpm 配置文件里 rlimit_files的值
; Set open file descriptor rlimit#rlimit设置打开的文件描述符 ; Default Value: system defined value rlimit_files = 65535 如果两个值不一样，则要设置为一样
方法如下：
3）设置系统打开文件连接数
[root@hotdata ~]# ulimit -HSn 65535 [root@hotdata ~]# ulimit -n 65535 [root@hotdata ~]#
设置好后重启PHP-fpm服务
2、 request_terminate_timeout = 0 设置为0
; 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 = 0
因为这个参数会直接杀掉PHP进程，然后重启PHP进程，这样前端Nginx就会返回104: Connection reset by peer。这个过程是很慢，总体感觉就是网站很卡
Nginx可能出现502 recv() Failed (104: Connection reset by peer) while reading response header from upstream
3、request_slowlog_timeout这个配置不要开启
之前服务器上开始了这个参数，并且设置如下：
request_slowlog_timeout = 10导致图片处理每次都失败，每次都是502错误。
错误信息如下：
Nginx的错误信息： 2015/12/28 16:20:23 [error] 649#0: *9862 recv() Failed (104: Connection reset by peer) while reading response header from upstream,client: 163.177.69.13,
[28-Dec-2015 17:04:01] WARNING: [pool www] child 10520,script '/hotdata/kehu/foshang_niufeecms/index.PHP' (request: "GET /index.PHP") execution timed out (10.451550 sec),terminating [28-Dec-2015 17:04:01] WARNING: [pool www] child 10512,script '/hotdata/kehu/foshang_niufeecms/index.PHP' (request: "GET /index.PHP") execution timed out (12.396650 sec),terminating [28-Dec-2015 17:04:01] WARNING: [pool www] child 10520 exited on signal 15 (SIGTERM) after 73.413706 seconds from start [28-Dec-2015 17:04:01] NOTICE: [pool www] child 10909 started [28-Dec-2015 17:04:01] WARNING: [pool www] child 10512 exited on signal 15 (SIGTERM) after 73.421170 seconds from start [28-Dec-2015 17:04:01] NOTICE: [pool www] child 10910 started/var/log/PHP-fpm/www-slow.log记录如下
[28-Dec-2015 16:23:17] [pool www] pid 2427 script_filename = /hotdata/kehu/foshang_niufeecms/index.PHP [0x00007f94070ff668] file_get_contents() /hotdata/kehu/foshang_niufeecms/index/Lib/Action/MemberAction.class.PHP:516 [0x00007f94070ff140] makecar() /hotdata/kehu/foshang_niufeecms/index/Lib/Action/MemberAction.class.PHP:623 [0x00007fff6b5bd870] ajaxMakeCart() unknown:0 [0x00007f94070fde48] invoke() /hotdata/kehu/foshang_niufeecms/core/Lib/Core/App.class.PHP:171 [0x00007f94070fdc70] exec() /hotdata/kehu/foshang_niufeecms/core/Lib/Core/App.class.PHP:207 [0x00007f94070fda98] run() /hotdata/kehu/foshang_niufeecms/core/Lib/Core/Think.class.PHP:39 [0x00007f94070fc610] start() /hotdata/kehu/foshang_niufeecms/core/Common/runtime.PHP:242 [0x00007f94070fbef8] +++ dump Failed
所以最好是要这个设置给屏蔽掉。 ;request_slowlog_timeout = 10
以上这篇/etc/PHP-fpm.d/www.conf 配置注意事项就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持编程之家。
