我遇到的问题往往是,如果我去我的服务器上使用php的页面,我会得到" 502 Bad Gateway"错误。
错误日志:
/var/log/nginx/error.log
每分钟显示此错误的大约3个副本:
2016/08/27 15:07:22 [error] 17309#0: *53554 connect() to unix:/var/run/php5-fpm.sock
failed (11: Resource temporarily unavailable) while connecting to upstream, client:
[dedicated server], server: localhost, request: "POST /xmlrpc.php HTTP/1.0",
upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: [my IP address]
来自nginx
或php5-fpm
进程的CPU负载有时很大(超过100%),但有时只是显着(2%),很少无关紧要。
这是我在syslog
(!)中看到的很多东西:
Aug 27 15:17:21 [site] avahi-daemon[871]: Invalid response packet from host
[some IP address that isn't mine and nslookup never heard of].
到目前为止我尝试过的事情:
apt-get update
php5
,php5-cgi
和php5-fpm
apache2
未在我的系统上运行 added
这个nginx.conf
位于http {
... }
:
fastcgi_buffers 8 16k;
fastcgi_buffer_size 32k;
fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
确保运行nginx
的同一用户拥有/var/run/php5-fpm.sock
。这是listen.owner
中listen.group
和/etc/php5/fpm/pool.d/www.conf
引用的所有者。
尝试将对该套接字的引用更改为TCP / IP套接字:
/etc/nginx/sites-available/default
包含第fastcgi_pass unix:127.0.0.1:9000;
行
/etc/php5/fpm/pool.d/www.conf
包含行listen = 127.0.0.1:9000;
由于这使得没有任何php页面能够正常工作,我还是恢复了这一改变。
nginx.conf
设置中禁用PHP文件。我没有,有时也有效,所以不可能。php5-fpm设置:
我怀疑这是一个问题,因为(a)它经常会这样做,而且(b)如果我没有得到504错误,我会得到一个非常慢的加载时间。任何使用php的页面。以下是我认为/etc/php5/fpm/pool.d/www.conf
文件的相关部分:
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
那么:我还应该尝试什么? TIA。
答案 0 :(得分:5)
You can check following things,
1- sudo service php5-fpm status
, try to start that if no running
2- while changing socket to tcp/ip remove unix, ie, in the /etc/nginx/sites-available/default
file, in the php block change fastcgi_pass unix:/var/run/php5-fpm.sock;
to fastcgi_pass 127.0.0.1:9000;
and in /etc/php5/fpm/pool.d/www.conf
file change listen = /var/run/php5-fpm.sock
to listen = 127.0.0.1:9000
3- try to increase the process managers for php, i.e., pm.max_children=40
, pm.start_servers = 10
, pm.min_spare_servers = 5
, pm.max_spare_servers = 10
4- switch off keepalive connections from nginx.conf
5- try to implement caching (is done for almost static content, so that all requests do not bother php) if possible.