曾仕强讲座,岫岩山山山出玉,软件工程师就业前景
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,
php-fpm的错误信息为：
[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移动技术网。
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