nginx+uwsgi高并发配置

nginx+uwsgi高并发配置

配置

系统层面

1. 修改TCP最大连接数

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

2. TCP连接立即回收、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; #一个nginx 进程打开的最多文件描述符数目 

events {
	worker_connections 20000;#每个进程允许的最多连接数
}

location / {
        uwsgi_send_timeout 600;        # 指定向uWSGI传送请求的超时时间，完成握手后向uWSGI传送请求的超时时间。
        uwsgi_connect_timeout 600;   # 指定连接到后端uWSGI的超时时间。
        uwsgi_read_timeout 600;        # 指定接收uWSGI应答的超时时间，完成握手后接收uWSGI应答的超时时间。
    }

uwsgi配置

workers/processes = 24   # 并发处理进程数
listen = 1000  # 并发的socket 连接数。默认为100。优化需要根据系统配置
timeout = 60*60
backlog = 10000

问题对应配置

(nginx error_log)

1. worker_rlimit_nofile 没改：

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

2. worker_connections 没改：

   worker_connections are not enough while connecting to upstream
   

3. uwsgi listen没改

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

4. 超时时间没改

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