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Part 2 - Node Cluster Module
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| // ════════════════════════════════════════════════════════════════════════════════════════════════╡ | |
| const cluster = require('cluster') | |
| const http = require('http') | |
| const numCPUs = require('os').cpus().length | |
| const bench = require('./bench') | |
| // ════════════════════════════════════════════════════════════════════════════════════════════════╡ | |
| const host = '192.168.0.14' | |
| const port = 8000 | |
| const start = async function startServer() { | |
| // Cluster | |
| if (cluster.isMaster) { | |
| console.log(`Master ${process.pid} is running.`) | |
| // Run cluster.fork based on numCPUs | |
| for (let i = 0; i < numCPUs; i += 1) { | |
| cluster.fork() | |
| } | |
| cluster.on('exit', (worker, code, signal) => { | |
| console.log(`A worker with ID ${worker.process.pid} died.`) | |
| }) | |
| } else { | |
| // Simple request router | |
| const router = function requestRouter(request, reply) { | |
| const result = bench(100) | |
| reply.end('OK') | |
| } | |
| // Start HTTP server | |
| const server = http.createServer(router) | |
| server.listen(port, host, () => { | |
| console.log(`Node.js Standard Library HTTP server running on port: ${port}`) | |
| }) | |
| } | |
| } | |
| start() |
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