Fast and reliable Elixir client for StatsD-compatible servers


License: ISC

Language: Elixir

Keywords: elixir, instrumentation, metrics, statsd


Build Status Hex Version

Statix is an Elixir client for StatsD-compatible servers. It is focused on speed without sacrificing simplicity, completeness, or correctness.

What makes Statix the fastest library around:

  • direct sending to the socket [1]
  • caching of the UDP packets header
  • usage of IO lists

[1] In contrast with process-based clients, Statix has lower memory consumption and higher throughput – Statix v1.0.0 does about 876640 counter increments per flush:


It is possible to measure it yourself.
for _ <- 1..10_000 do
  Task.start(fn ->
    for _ <- 1..10_000 do
      StatixSample.increment("sample", 1)

Make sure you have StatsD server running to get more realistic results.


Add Statix as a dependency to your mix.exs file:

def application() do
  [applications: [:statix]]

defp deps() do
  [{:statix, ">= 0.0.0"}]

Then run mix deps.get in your shell to fetch the dependencies.


A module that uses Statix becomes a socket connection:

defmodule MyApp.Statix do
  use Statix

Before using connection the connect/0 function needs to be invoked. In general, this function is called when your application starts (for example, in its start/2 callback):

def start(_type, _args) do
  :ok = MyApp.Statix.connect()
  # ...

Once the Statix connection is open, its increment/1,2, decrement/1,2, gauge/2, set/2, timing/2, and measure/2 functions can be used to push metrics to the StatsD-compatible server.


Sampling is supported via the :sample_rate option:

MyApp.Statix.increment("page_view", 1, sample_rate: 0.5)

The UDP packet will only be sent to the server about half of the time, but the resulting value will be adjusted on the server according to the given sample rate.


Tags are a way of adding dimensions to metrics:

MyApp.Statix.gauge("memory", 1, tags: ["region:east"])


Statix can be configured globally with:

config :statix,
  prefix: "sample",
  host: "stats.tld",
  port: 8181

and on a per connection basis as well:

config :statix, MyApp.Statix,
  port: 8811

The defaults are:

  • prefix: nil
  • host: ""
  • port: 8125

Note: by default, configuration is evaluated once, at compile time. If you plan using other configuration at runtime, you must specify the :runtime_config option:

defmodule MyApp.Statix do
  use Statix, runtime_config: true


This software is licensed under the ISC license.

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Aleksei Magusev Andrea Leopardi Jason Fertel Forest Victor Rodrigues Steve Cohen Oskar Niburski Cody Michael Oliver visciang Matt Low Kian Seong Eduardo Gurgel

Packages Referencing this Repo

Fast and reliable Elixir client for StatsD-compatible servers.
Latest release 1.3.0 - Updated - 204 stars

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v1.2.1 July 10, 2019
v1.2.0 July 02, 2019
v1.1.0 October 17, 2017
v1.1.0 October 17, 2017
v1.0.1 October 03, 2017
v1.0.0 November 15, 2016
v0.8.0 September 11, 2016
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Fast and reliable Elixir client for StatsD-compatible servers
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