Issue in cluster module while running an http server

[GavinDmello]

• Version: 4.4.7
• Platform: Darwin Kernel Version 15.5.0 root:xnu-3248.50.21~8/RELEASE_X86_64 x86_64
• Subsystem: Cluster module

I'm not sure if a bug or not. I'm running an http server within the cluster module and all my requests seem to go the same process. I'm logging the pid and every time I get a request I get the same pid. I'm also setting the policy as cluster.SCHED_RR for a round robin. Some help would be great!

var cluster = require('cluster');
cluster.schedulingPolicy = cluster.SCHED_RR
if (cluster.isMaster) {
    var cpuCount = require('os').cpus().length;
    for (var i = 0; i < cpuCount; i += 1) {
        cluster.fork();
    }
} else {
    console.log('Four child processes created', process.pid)
    var express = require('express');
    var app = express();

    app.get('/', function(req, res) {
        console.log(process.pid)
        res.send('Hello World!');
    });
    app.listen(3001);
    console.log('Application running!');

}

[timoxley]

Try hitting it with curl http://localhost:3001/ a few times or try using different browsers and you should see it hits different processes. I believe this may be because the browser uses http keepalive, so the connection is reused.

[GavinDmello]

@timoxley Thanks. Sorted.