gmetric-mod v0.2.5

meneal's modified node gmetric

jbuchbinder's code did not suit my needs since post connections it does not close the sockets it opens for communication. It may well be that he had some specific way in mind to close out the connections, but that wasn't obvious from his readme, or the documentation in the code.

This mod closes the connections after each socket sends it's packets. Any time there is a new call it simply opens up another socket. Two are used for each send to ganglia, one for meta and one for data.

• Module Name : gmetric-mod
• Website : https://github.com/meneal/node-gmetric

Gmetric packet submission for node.js

Sending metrics

Unspoofed

var Gmetric = require('gmetric');

var gmetric = new Gmetric();
var metric = {
  hostname: 'awesomehost.mydomain.com',
  group: 'testgroup',
  units: 'widgets/sec',
  slope: 'positive',

  name: 'bestmetric',
  value: 10,
  type: 'int32'
};

gmetric.send('127.0.0.1', 8649, metric);

Spoofed

var Gmetric = require('gmetric');

var gmetric = new Gmetric();
var metric = {
  hostname: '192.168.20.15:awesomehost.mydomain.com',
  group: 'testgroup',
  spoof: true,
  units: 'widgets/sec',
  slope: 'positive',

  name: 'bestmetric',
  value: 10,
  type: 'int32'
};

gmetric.send('127.0.0.1', 8649, metric);

Receiving and unpacking metrics

var util = require('util'),
    dgram = require('dgram'),
    server = dgram.createSocket('udp4');

var Gmetric = require('gmetric'),
    gmetric = new Gmetric();

server.on('message', function(msg, rinfo) {
  var msg_type = msg.readInt32BE(0);
  if(msg_type === 128){
    var meta = gmetric.unpack(msg);
    console.log('Received Meta Packet:');
    console.log(util.inspect(meta) + "\n");
  } else if (msg_type === 133){
    var data = gmetric.unpack(msg);
    console.log('Received Data Packet:');
    console.log(util.inspect(data) + "\n");
  }
});

server.on('listening', function(){
  console.log('Gmetric server listening...');
});

server.bind(8649);

License

Copyright Jeff Buchbinder, and other contributors. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
IN THE SOFTWARE.