我使用 Laravel Forge 来启动我的 EC2 环境,这为我创建了一个 LEMP 堆栈。我最近开始收到 504 次请求超时。
我不是系统管理员(因此订阅了 Forge),但我查看了日志并将问题缩小到我日志中的这 2 个重复条目:
在:/var/log/nginx/default-error.log
2017/09/15 09:32:17 [error] 2308#2308: *1 upstream timed out (110: Connection timed out) while sending request to upstream, client: x.x.x.x, server: xxxx.com, request: "POST /upload HTTP/2.0", upstream: "fastcgi://unix:/var/run/php/php7.1-fpm.sock", host: "xxxx.com", referrer: "https://xxxx.com/rest/of/the/path"
在:
/var/log/php7.1-fpm-log
[15-Sep-2017 09:35:09] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 8 children, there are 0 idle, and 14 total children
似乎 fpm 打开了永不消亡的连接,并且从我的 RDS 负载日志中我可以看到 RAM 不断被最大化。
我试过了:
fpm
) 现在唯一有效的是强大的 RDS(8GB RAM)+每 300 个请求杀死 fpm 池连接。但显然在这个问题上投入资源并不是解决方案。
这是我的
/etc/php/7.1/fpm/pool.d/www.conf
配置user = forge
group = forge
listen = /run/php/php7.1-fpm.sock
listen.owner = www-data
listen.group = www-data
listen.mode = 0666
pm = dynamic
pm.max_children = 30
pm.start_servers = 7
pm.min_spare_servers = 6
pm.max_spare_servers = 10
pm.process_idle_timeout = 7s;
pm.max_requests = 300
这是我的
nginx.conf
配置listen 80;
listen [::]:80;
listen 443 ssl http2;
listen [::]:443 ssl http2;
server_name xxxx.com;
root /home/forge/xxxx.com/public;
# FORGE SSL (DO NOT REMOVE!)
ssl_certificate /etc/nginx/ssl/xxxx.com/111111/server.crt;
ssl_certificate_key /etc/nginx/ssl/xxxx.com/111111/server.key;
ssl_protocols xxxx;
ssl_ciphers ...;
ssl_prefer_server_ciphers on;
ssl_dhparam /etc/nginx/dhparams.pem;
add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header X-Content-Type-Options "nosniff";
index index.html index.htm index.php;
charset utf-8;
# FORGE CONFIG (DOT NOT REMOVE!)
include forge-conf/xxxx.com/server/*;
location / {
try_files $uri $uri/ /index.php?$query_string;
}
location = /favicon.ico
location = /robots.txt
access_log /var/log/nginx/xxxx.com-access.log;
error_log /var/log/nginx/xxxx.com-error.log error;
error_page 404 /index.php;
location ~ \.php$ {
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/var/run/php/php7.1-fpm.sock;
fastcgi_index index.php;
fastcgi_read_timeout 60;
include fastcgi_params;
}
location ~ /\.(?!well-known).* {
deny all;
}
location ~* \.(?:ico|css|js|gif|jpe?g|png)$ {
expires 30d;
add_header Pragma public;
add_header Cache-Control "public";
}
最佳答案
好的,经过大量调试和测试后,我注意到了这几个原因。
MySQL
的 AWS RDS 实例有 500Mb 的内存。回顾过去,所有这些问题都是在数据库大小超过 400Mb 时开始的。关于PHP FPM 7.1 套接字泄漏导致 NGINX - 504 网关超时,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/46248790/