【发布时间】：2018-02-25 04:33:57
【问题描述】：
我使用 Laravel Forge 来启动我的 EC2 环境，这为我构建了一个 LEMP 堆栈。我最近开始收到 504 个请求超时。
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日志中的这 2 个重复条目：
输入：/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"
输入：/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
fpm 似乎打开了永不中断的连接，并且从我的 RDS 加载日志中我可以看到 RAM 不断被用尽。
我试过了：
- 回滚到我的应用程序的明确稳定版本（2 个月前）
- 用 5.6、7.0 和 7.1 重新安装我的 EC2（使用它们各自的
fpm） - 在 14.04 和 16.04 完成上述所有操作
- 创建更大的 RDS
目前唯一可行的是强大的 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办法。
这是我对 /etc/php/7.1/fpm/pool.d/www.conf 的配置
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
这是我对nginx.conf的配置
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";
}
【问题讨论】：
标签： php nginx amazon-ec2 fpm http-status-code-504