use cluster in server-ipc

[jpolstre]

Is it possible and recommended to use cluster in childprocess (ipc-server.js) to improve server performance with more than 1 cpu? try the following implementation according to the ipc-node documentation:

`const ipc = require('node-ipc') const fs = require('fs') const cpuCount = require('os').cpus().length const cluster = require('cluster') const socketPath = '/tmp/ipc.sock'

function init(socketName, handlers) { ipc.config.unlink = false if (cluster.isMaster) { if (fs.existsSync(socketPath)) { fs.unlinkSync(socketPath) } for (let i = 0; i < cpuCount; i++) { cluster.fork() } } else {

	ipc.serve(socketPath, () => {
		ipc.server.on('message', (data, socket) => {
			let msg = JSON.parse(data)
			let { id, name, args } = msg

			if (handlers[name]) {
				handlers[name](args).then(
					(result) => {
						ipc.server.emit(socket, 'message', JSON.stringify({ type: 'reply', id, result }))
					},
					(error) => {
						// Up to you how to handle errors, if you want to forward
						// them, etc
						ipc.server.emit(socket, 'message', JSON.stringify({ type: 'error', id }))
						throw error
					}
				)
			} else {
				console.warn('Unknown method: ' + name)
				ipc.server.emit(socket, 'message', JSON.stringify({ type: 'reply', id, result: null }))
			}
		})
	})

ipc.server.start()
console.log(`pid ${process.pid} listening on ${socketPath}`);
}

}

function send(name, args) { ipc.server.broadcast('message', JSON.stringify({ type: 'push', name, args })) }

module.exports = { init, send }`

But I get an error: TypeError: handle.setSimultaneousAccepts is not a function at ChildProcess.target._send (internal/child_process.js:761:16) at ChildProcess.target.send (internal/child_process.js:676:19) at sendHelper (internal/cluster/utils.js:22:15) at send (internal/cluster/master.js:351:10) at internal/cluster/master.js:317:5 at SharedHandle.add (internal/cluster/shared_handle.js:29:3) at queryServer (internal/cluster/master.js:311:10) at Worker.onmessage (internal/cluster/master.js:246:5) at ChildProcess.onInternalMessage (internal/cluster/utils.js:43:8) at ChildProcess.emit (events.js:215:7)

Any help is welcome thanks.

[aperkaz]

@jpolstre any updates on this? I am also interested in it 🙂