Could not send data using Synthesize with Vagrant

Asked by Agustina on 2016-11-23

I've successfully installed Synthesize in Vagrant, I am able to see the Graphite dashboard at but I could not see the data I send.

I've just run this in the terminal:

echo " 1 `date +%s`" | nc localhost 8443

But there isn't any "" metric.

What am I doing wrong?


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Jason Dixon (jason-dixongroup) said : #1

Hi Agustina,

You're sending metrics to the wrong port. The port mappings are listed at but it's assumed that users are already familiar with the purpose of each. Here's a quick breakdown:

guest: 443, host: 8443 --> apache (graphite-web, used for web/api)
guest: 8125, host: 8125 --> statsite (statsd, used for metrics aggregation)
guest: 2003, host: 22003 --> carbon-cache (plaintext, where you want to send your metrics with nc)
guest: 2004, host: 22004 --> carbon-cache (pickle protocol, used among carbon services or other pickle-compatible clients)

So you really want to send your nc connection to port 2003 if you're *inside* the vagrant box, or 22003 from the host system (or elsewhere).


Agustina (abriv) said : #2

Great! My mistake... Thanks!

Agustina (abriv) said : #3

Sorry, I need another answer...

Is Vagrant configure to can send UDP messages?

I'm trying to user this graphite client for nodejs: and I don't see the metrics I send.

Here is my code:

var graphite = require('graphite-udp')
var metric = graphite.createClient({
  prefix: '',
  interval: 5000,
  port: 22003,
  verbose: true,
  callback: function(error, metrics) {
    console.log('Metrics sent\n'+ metrics);
    console.log('Errors\n'+ error);

metric.add('my.test.metric1', 10) // add 10
metric.add('my.test.metric1', 20) // add 20 (previous 10 + 20 = 30)

Any help would be much appreciated.


Jason Dixon (jason-dixongroup) said : #4

Carbon-cache does not listen for UDP packets by default. You'll need to update your carbon.conf to enable ENABLE_UDP_LISTENER for the affected Carbon services.

P.S. In the future please avoid adding questions to an already solved issue.

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