I am new to socket.io and Node JS, and I am trying to create a scalable application with many simultaneous socket connections (10,000 +).
Currently, I started with a model where my server creates a child process, and each child process listens on a specific port with an attached instance of sicket.io. When a client connects, it is redirected to a specific port.
The big question is: do multiple socket.io instances on multiple ports have the number of possible connections?
Here is my code, just in case:
Server
var server = http.createServer(app);
server.childList = [];
for (var i = 0; i < app.portList.length; i++) {
server.childList[i] = require('child_process').fork('child.js');
}
server.listen(3443, () => {
for (var i = 0; i < app.portList.length; i++) {
server.childList[i].send({ message: 'createServer', port: app.portList[i] });;
}
});
child.js:
var app = require('./app');
var http = require('http');
var socket_io = require( "socket.io" );
process.on('message', (m) => {
if (m.message === 'createServer') {
var childServ = http.createServer(app);
childServ.listen(m.port, () => {
console.log("childServ listening on port "+m.port);
});
var io = socket_io();
io.attach( childServ );
io.sockets.on('connection', function (socket) {
console.log("A client just connected to my socket_io server on port "+m.port);
});
}
});
Feel free to free kraken if I did something terrible there
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