连接被拒绝错误Nginx Flask_socketio，Flask应用

问题描述

我正在尝试在Nginx服务器上托管聊天应用程序，但出现错误。我在ubuntu服务器上运行，并且在客户端显示400错误的错误请求。

*71 connect() Failed (111: Connection refused) while connecting to upstream,client: 193.36.225.4,server: xxx.xxx.xxx.xxx,request: "GET /socket.io/?EIO=3&transport=polling&t=NGV-jAk HTTP/1.1",upstream: "http://127.0.0.1:5001/socket.io/?EIO=3&transport=polling&t=NGV-jAk",host: "xxx.xxx.xxx.xxx",referrer: "http://xxx.xxx.xxx.xxx/"

NGIX文件：

   upstream socketio_nodes {
        ip_hash;
    
        #server http://unix:/home/web_chatbot/web_chatbot.sock/socket.io:/socket.io/;
        server 127.0.0.1:5000;
        server 127.0.0.1:5001;
        server 127.0.0.1:5002;
        # to scale the app,just add more nodes here!
    }
    
    server {
        listen 80;
        server_name 000.000.000.000;
    
    location / {
      include proxy_params;
      proxy_pass http://127.0.0.1:5000;
        }
    
    location /static {
            alias /home/web_chatbot/web_chatbot/static;
            expires 30d;
        }
    
        location /socket.io {
            include proxy_params;
            proxy_http_version 1.1;
            proxy_buffering off;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "Upgrade";
            proxy_pass http://socketio_nodes/socket.io;
        }
    
    }

点子要求：fask，fask_socketio，gunicorn，eventlet

解决方法

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flask flask-socketio python