Nginx do nodejs application load Balancer Configuration instance

This article mainly introduced the Nginx to do nodejs application load Balancer Configuration example, this article directly gives the configuration instance, needs the friend can refer to.

load Balancing allows the user's requests to be distributed across multiple servers for processing, enabling access to a huge number of users. Load-balanced Architecture:

For complex Web applications, using Nginx for front-end load balancing is a matter of course.

Below, we use Nginx to do the load balance of NODEJS application. 1, Configuration Nginx modified Nginx.conf:upstream sample {      server 127.0.0.1:3000;       Server 127.0.0.1:3001;      keepalive 64;    }      server {& nbsp;      Listen 80;       ....       server_name 127.0.0.1;&nbsp ;      ....       location/{         Proxy_redirect Off;&nbs p;        Proxy_set_header x-real-ip $remote _addr;         Proxy_set_header X-forwarded-for $proxy _add_x_forwarded_for;         Proxy_set_header X-forwarded-proto $ scheme;         Proxy_set_header Host $http _host;         proxy_set_ Header x-nginx-proxy true;         proxy_set_header Connection "";       &NB Sp Proxy_http_version 1.1;         Proxy_pass http://sample;      }    }  There is a node. js server on each of the 3000 and 3001 ports, and the two servers are doing the same job. In the upstream section, two node. JS servers are configured. In addition, we have set up Proxy_pass http://sample to do HTTP request proxy. 2. Build Nodejs Servervar http = require (' http ');   var Morgan = require (' Morgan ');  var server1 = Http.createserver (function (req, res) {Console.log ("Request for:" + Req.url + "--port 3000");  Res.writehead ($, {' Content-type ': ' Text/plain '}); Res.end (' Hello node.js\n ');   }). Listen (3000, "127.0.0.1");  var server2 = http.createserver (function (req, res) {Console.log ("Request for:" + Req.url + "--port 3001");  Res.writehead ($, {' Content-type ': ' Text/plain '}); Res.end (' Hello node.js\n ');   }). Listen (3001, "127.0.0.1");   Server1.once (' Listening ', function () {console.log (' Server running at Http://127.0.0.1:3000/');}); Server2.once (' Listening ', function () {console.log (' Server running at http://127.0.0.1:3001/');}); 3, Access Nginx Server Now we can access the http://127.0.0.1 can see the following output:Server running at Http://127.0.0.1:3000/Server running @ http://127.0.0.1:3001/Request for:/--Port 3001 Request for: /favicon.ico--Port Request for:/favicon.ico--Port 3001 Request for:/--port, request for:/favicon.ico-- Port 3001 Request for:/favicon.ico--port, Request for:/--Port 3001 Request for:/favicon.ico--Port Reque St for:/favicon.ico--Port 3001 Request for:/--port, Request for:/favicon.ico--Port 3001 Request for:/favicon . ico--Port 3000

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Nginx do nodejs application load Balancer Configuration instance