wellness-linux-cpu/test_cluster.js

Wellness module to check linux CPU usage.

'use strict';
var wellness = require('wellness');
var express = require('express');
var app = express();
var numCPUs = require('os').cpus().length;
var linuxCpu = require('./index');

var opts = {
    healthCheckUriPath: '/healthcheck',
    expressApp: app,
    workerTimeOut: 2000,
    numWorkers: numCPUs
};

wellness.addCheck(linuxCpu);

function doSomethingUseful() {
    wellness.workerIsWorking();
}
var cluster = require('cluster');

if (cluster.isMaster) {
    for (var i = 0; i < numCPUs; i++)
        cluster.fork();
    wellness.clusterPostForkInit();
} else {
    wellness.clusterPostForkInit(opts, function(err) {
        if (err) {
            console.error(err.message);
            return;
        }
        app.listen(3000, function () {
            console.log('Example app listening on port 3000!');
            doSomethingUseful();
            setInterval(doSomethingUseful, 1000);
        });
    });
}