isabella232 / pubnub-rickshaw-memory

Publish the memory usage of a nodeJS instance in pubnub-rickshaw format

PubNub-Rickshaw-Memory

Monitor your NodeJS memory usage with PubNub. Plugs right into pubnub-rickshaw for easy realtime charts.

Quickstart

Install with npm.

npm install pubnub-rickshaw-memory

Include in your app with {dev: true}.

var pnrickmem = require('pubnub-rickshaw-memory');
pnrickmem.init({dev: true});

That's it! Now when you run your node app, you should see the following:

----------------------
pubnub-rickshaw-memory
----------------------

Monitor this instance:

http://localhost:1337?pnrickmem-bff2c45e-ab44-4204-92e3-bd69048502c0

----------------------

Visit the url to see a realtime graph of your NodeJS memory profile over time.

Options

Sent as an object during init().

pnrickmem.init({
  publish_key: 'demo',
  subscribe_key: 'demo',
  channel: uuid(),
  interval_timeout: 1000
  dev_mode: false,
  port: 3333
});

Parameter	Details	Type	Default
publish_key	Your PubNub publish key	string	'demo'
subscribe_key	Your PubNub subscribe key	string	'demo'
channel	Your PubNub channel	string	uuid.v4();
interval_timeout	Delay between memory publishes	integer	1000
dev_mode	Enable development mode	boolean	false
port	Port number for express server spawned when dev mode is enabled	integer	3333

How it works

NodeJS memory usage is exposed through process.memoryUsage().

Every interval_timeout the module publishes the current output of process.memoryUsage() to the supplied publish_key and channel on the PubNub network. Read more about PubNub here.

Dev Mode

When dev: true is enabled in options, the module will spawn an express server on localhost using the supplied port. This is a simple static server that already includes the contents of pubnub-rickshaw.

Customization

You can customize your graph by configuring pubnub-rickshaw to subscribe the the same channel supplied in options.