Created
November 22, 2021 07:13
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Example of node cluster
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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(); | |
} | |
cluster.on('exit', (worker, code, signal) => { | |
console.log(`worker ${worker.process.pid} died`); | |
}); | |
} else { | |
// Workers can share any TCP connection | |
// In this case it is an HTTP server | |
http.createServer((req, res) => { | |
res.writeHead(200); | |
res.end(`hello world - response from ${process.pid} Worker\n`); | |
}).listen(8080); | |
console.log(`Worker ${process.pid} started`); | |
} |
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