nginx+uwsgi高併發配置

nginx+uwsgi高併發配置

配置

系統層面

1. 修改TCP最大連接數

   echo 10000 > /proc/sys/net/core/somaxconn
   

2. TCP連接立即回收、回用

   echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse
   echo 1 > /proc/sys/net/ipv4/tcp_tw_recycle
   

nginx配置

worker_rlimit_nofile 65535; #一個nginx 進程打開的最多文件描述符數目 

events {
	worker_connections 20000;#每個進程允許的最多連接數
}

location / {
        uwsgi_send_timeout 600;        # 指定向uWSGI傳送請求的超時時間，完成握手後向uWSGI傳送請求的超時時間。
        uwsgi_connect_timeout 600;   # 指定連接到後端uWSGI的超時時間。
        uwsgi_read_timeout 600;        # 指定接收uWSGI應答的超時時間，完成握手後接收uWSGI應答的超時時間。
    }

uwsgi配置

workers/processes = 24   # 併發處理進程數
listen = 1000  # 併發的socket 連接數。默認爲100。優化需要根據系統配置
timeout = 60*60
backlog = 10000

問題對應配置

(nginx error_log)

1. worker_rlimit_nofile 沒改：

   socket() failed (24: Too many open files) while connecting to upstream
   

2. worker_connections 沒改：

   worker_connections are not enough while connecting to upstream
   

3. uwsgi listen沒改

   connect() to unix:///root/TsingE-Backend/TsingeManager/uwsgi.sock failed (11: Resource temporarily unavailable) while connecting to upstream
   

4. 超時時間沒改

   upstream timed out (110: Connection timed out) while reading response header from upstream