ElixirMetrics

Simple library for sending telemetry metrics to collectd. All metrics paths are generated at compile time. Do things like

Metrics.timed do
  do_a_thing()
end

Usage

config :elixir_metrics,
  app_name: :dsmapi,
  unixsock: "/var/run/collectd-unixsock",
  connect_timeout: 5_000,
  reconnect_interval: 5_000,
  collection_interval: 60_000,
  use_collectd: true

in your application tree

supervisor(ElixirMetrics, [metrics_children]),

Where metrics_children is any polling processes you want to install. It can be [] and you can just use the metrics library normally, doing things like Metrics.count([:my_app, :some_event]). But you can write additional poller processes by doing something like:

defmodule MyApp.CoolPoller do
  use ElixirMetrics.Poller
  def poll() do
    set_gauge([:my, :florp, :metric, :path], Florps.current_florp_count())
  end
end

and then pass it to the metric supervisor

metrics_children = [
  {MyApp.CoolPoller, []}
]

and your poll function will get run on the collection interval.

Installation

If available in Hex, the package can be installed by adding elixir_metrics to your list of dependencies in mix.exs:

def deps do
  [
    {:elixir_metrics, "~> 0.1.0"}
  ]
end

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/elixir_metrics.