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Nginx timeout超时配置详解

时间：2020-11-05 17:59:21 | 栏目：Nginx | 点击：次

最近项目中用到了nginx，后台用的是Java, 发现有一个请求后台处理操过了1分钟，结果请求Status Code为504 Gateway Time-out.

理解了下nginx 所有timeout相关的配置，如下：

keepalive_timeout

HTTP 有一个 KeepAlive 模式，它告诉 webserver 在处理完一个请求后保持这个 TCP 连接的打开状态。若接收到来自客户端的其它请求，服务端会利用这个未被关闭的连接，而不需要再建立一个连接。

http keep-alive, ?W?的每一???求都是HTTP (?D片, CSS等), 而打?_HTTP ?求是要先建立TCP ?B接, 而如果一???面每???求都要打?_及?P?]一??TCP ?B接就??做成?Y源的浪?M. keepalive_timeout 就是??一??HTTP ?求完成, 其TCP ?B接??存留下?淼?r?g, 如果?@?r有另一??HTTP ?求?^??, ???}用?@??TCP ?B接, 如果再?]有新的?求?^??, 才???P?]其TCP?B接

user nginx;
worker_processes 1;
 
error_log /var/log/nginx/error.log warn;
pid    /var/run/nginx.pid;
 
 
events {
  worker_connections 1024;
}
 
 
http {
  include    /etc/nginx/mime.types;
  default_type application/octet-stream;
 
  log_format main '$remote_addr - $remote_user [$time_local] "$request" '
           '$status $body_bytes_sent "$http_referer" '
           '"$http_user_agent" "$http_x_forwarded_for"';
 
  access_log /var/log/nginx/access.log main;
 
  sendfile    on;
  tcp_nopush   on;
  tcp_nodelay on;
 
 
  keepalive_timeout 65;
  client_max_body_size 8192m;
 
  #gzip on;
 
  #include /etc/nginx/conf.d/*.conf;
 
 
 
  server {
 listen 80 so_keepalive=30m::;
 listen 443 default ssl;
 
 ssl_certificate /etc/nginx/ssl/server.crt;
 ssl_certificate_key /etc/nginx/ssl/portalkey.key;
 #ssl_password_file /etc/nginx/ssl/ssl.pass;
 
 
    ssl_session_timeout 5m;
    ssl_protocols SSLv2 SSLv3 TLSv1;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;
 
 location / {
 proxy_request_buffering off;
 proxy_pass http://127.0.0.1:8011/;
 proxy_connect_timeout    180;
    proxy_send_timeout     180;
    proxy_read_timeout     180;
    send_timeout  180;
 }
 location /test1_url/ {
 proxy_pass http://127.0.0.1:8008/;
 proxy_connect_timeout    180;
    proxy_send_timeout     180;
    proxy_read_timeout     180;
    send_timeout  180;
 }
 location /test2_url/ {
 proxy_pass http://127.0.0.1:3000/;
 proxy_connect_timeout    180;
    proxy_send_timeout     180;
    proxy_read_timeout     180;
    send_timeout  180;
 }
  }
}

# 配置段: http，默认75s

keepalive_timeout 60;

so_timeout:

??用?舾?SERVER?_?⒘?TCP CONNECTION --> 一段?L?r?g?@??CONNECTION ?]traffic (so_keepalive timeout) --> SERVER ?l出探?y包看用?羰欠襁?存在 --> 若探?y包?]回, ?t?P?]TCP CONNECTION 

so_keepalive=on|off|[keepidle]:[keepintvl]:[keepcnt]
so_keepalive=30m::10
  will set the idle timeout (TCP_KEEPIDLE) to 30 minutes, leave the probe interval (TCP_KEEPINTVL) at its system default, and set the probes count (TCP_KEEPCNT) to 10 probes.

以上三个参数只能使用一个，不能同时使用， 比如so_keepalive=on, so_keepalive=off或者so_keepalive=30s::(表示等待30s没有数据报文发送探测报文)

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