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const cluster = require('cluster');
const http = require('http');
const numCPUs = require('os').cpus().length;
if (cluster.isMaster) {
console.log(`Master ${process.pid} is running`);
// Fork workers.
for (let i = 0; i < numCPUs; i++) {
cluster.fork();
[
{
"pickup_date": "2013-04-25",
"delivery_date": "2013-04-29",
"updated_at": "2013-04-29 19:40:07.952246",
"delivery_identifier": "39072871",
"mode": "less_than_truckload",
"state": "delivered",
"origin_city": "Florence",
"origin_state": "AL",