1、
问题:
发现/usr/local/webserver/php/etc/php-fpm.conf文件里定义的打开文件描述符的限制数量是
但用 命令ulimit -n查看,发现只有1024
我已在/etc/rc.local里添加了
ulimit -SHn 51200
竟然没生效
解决:
vi /etc/security/limits.conf
文件最后加上
* soft nofile 51200
* hard nofile 51200
2、
问题:
用命令
netstat -np | grep 127.0.0.1:9000 |wc -l
发现只有100多
解决:
根据服务器内存情况,可以把PHP FastCGI子进程数调到100或以上,在4G内存的服务器上200就可以
服务器上内存为8G,我把PHP FastCGI子进程数调整到300
vi /usr/local/webserver/php/etc/php-fpm.conf
将max_children修改为300
重启服务器,这样,网站打开速度快,而且稳定了。
When you running a highload website with PHP-FPM via FastCGI, the following tips may be useful to you : )
如果您高负载网站使用PHP-FPM管 理FastCGI,这些技巧也许对您有用:)
1. Compile PHP’s modules as less as possible, the simple the best (fast);
1.尽量少安装PHP模块,最简单是最好(快)的
2. Increas PHP FastCGI child number to 100 and even more. Sometime, 200 is OK! ( On 4GB memory server);
2.把您的PHP FastCGI子进程数调到100或以上,在4G内存的服务器上200就可以
注:我的1g测试机,开64个是最好的,建议使用压力测试获取最佳值
3. Using SOCKET PHP FastCGI, and put into /dev/shm on Linux;
3.使用socket连接FastCGI,linux操作系统可以放在 /dev/shm中
注:在php-fpm.cnf 里设置
4. Increase Linux “max open files”, using the following command (must be root):
# echo ‘ulimit -HSn 65536′ >> /etc/profile
# echo ‘ulimit -HSn 65536 >> /etc/rc.local
# source /etc/profile
4.调高linux内核打开文件数量,可以使用这些命令(必须是root帐号)
echo 'ulimit -HSn 65536' >> /etc/profile
echo 'ulimit -HSn 65536' >> /etc/rc.local
source /etc/profile
注:我是修改/etc/rc.local,加入ulimit -SHn 51200的
5. Increase PHP-FPM open file description rlimit:
# vi /path/to/php-fpm.conf
Find “
Change 1024 to 4096 or higher number.
Restart PHP-FPM.
5. 增加 PHP-FPM 打开文件描述符的限制:
# vi /path/to/php-fpm.conf
找到“
把1024 更改为 4096 或者更高.
重启 PHP-FPM.
6. Using PHP code accelerator, e.g eAccelerator, XCache. And set “cache_dir” to /dev/shm on Linux.
6.使用php代码加速器,例如 eAccelerator, XCache.在linux平台上可以把`cache_dir`指向 /dev/shm

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