https://github.com/jadbox/rxjs-cluster

Node Cluster support in RxJS
https://github.com/jadbox/rxjs-cluster

Last synced: 10 months ago
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Node Cluster support in RxJS

• Host: GitHub
• URL: https://github.com/jadbox/rxjs-cluster
• Owner: jadbox
• Created: 2015-12-28T01:44:03.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2016-07-23T01:16:45.000Z (almost 10 years ago)
• Last Synced: 2025-07-22T23:59:10.573Z (11 months ago)
• Language: JavaScript
• Homepage:
• Size: 208 KB
• Stars: 26
• Watchers: 5
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# rxjs-cluster

_[Moore's law ceiling](http://www.agner.org/optimize/blog/read.php?i=417): "The biggest potential for improved performance is now, as I see it, on the software side [...] with parallelism which has so far not been [broadly] implemented."_

_(WIP: Working Beta)_

Using Rx, maximize CPU usage in Node by using the new clusterMap that uses cluster/forked processes

```

var Rx = require('rx');

var Cluster = require('rxjs-cluster'); // import

var options = {};

var rc = new Cluster( options ); // instance

var Observable = Rx.Observable;

// Child function that returns raw value

function childTest(x) {

	return "hello " + x + " from " + process.pid;

}

// Child function that returns an Observable

function childTest$(x) {

	return Rx.Observable.range(0,3).map("hello " + x).toArray();

}

function master() {

	Observable.from(['Jonathan', 'James', 'Edwin'])

		.clusterMap('childTest')

		.subscribe(

			function(x) { console.log(x); },

			function(x) { console.log('Err ' + x); },

			function() { console.log('Completed'); }

		);

	Observable.from(['Jonathan', 'James', 'Edwin'])

		.clusterMap('childTest$')

		.subscribe(

			function(x) { console.log(x); },

			function(x) { console.log('Err ' + x); },

			function() {

				console.log('Completed');

				rc.killall(); // kill all workers, clusterMap will no longer work

			}

		);

}

// Define number of workers, master entry point, worker functions

rc.entry(master, { 'childTest': childTest,

                      'childTest$': childTest$ });

// Or define leave the default number of workers to # of cpu cores

// rc.entry(master, { 'childTest': childTest, 'childTest$': childTest$ });

```