February 24, 2015 07:39 by
Peter
In this short article, let me tell you about How to Clustered HTTP Server in Node.js. Now this is the code that I ued to clustere the HTTP Server:
function () {
'use strict';
var cluster = require('cluster'),
http = require('http'),
os = require('os'),
/*
* ClusterServer object
*
* We start multi-threaded server instances by passing the server object
* to ClusterServer.start(server, port).
*
* Servers are automatically started with a number of threads equivalent
* to the number of CPUs reported by the os module.
*/
ClusterServer = {
name: 'ClusterServer',
cpus: os.cpus().length,
autoRestart: true, // Restart threads on death?
start: function (server, port) {
var me = this,
i;
if (cluster.isMaster) { // fork worker threads
for (i = 0; i < me.cpus; i += 1) {
console.log(me.name + ': starting worker thread #' + i);
cluster.fork();
}
cluster.on('death', function (worker) {
console.log(me.name + ': worker ' + worker.pid + ' died.');
if (me.autoRestart) {
console.log(me.name + ': Restarting worker thread...');
cluster.fork();
}
});
} else {
server.listen(port);
}
}
},
/*
* Simple example HelloWorld HTTP server
*
* Repsonds to any request with a plain txt "Hello World!" message.
*
* You can replace this with much more complex processing, naturally.
*/
helloWorldServer = http.createServer(function (request, response) {
response.writeHead(200, {
'Content-type': 'text/plain'
});
response.end('Hello World!');
console.log('helloWorldServer: Served a hello!');
});
ClusterServer.name = 'helloWorldServer'; // rename ClusterServer instance ClusterServer.start(helloWorldServer, 8081); // Start it up!
}());
I hope it works for you!
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