Metricman

It is just meta package which depends on Feuerlabs/exometer_core, travelping/exometer_influxdb and configures some VM metrics:

Erlang release version number
BEAM start and uptime
Port information
Processes information
Processors information
Garabage collection
I/O
Memory usage
Scheduler usage

You can see the created metrics in config/config.exs. Note that the metrics are only created. If you want to expose them via a reporter then you need to subscribe to them from within your application.

Dependencies tree

xerions/metricman 
`--> travelping/exometer_influxdb
     `--> Feuerlabs/exometer_core
         `--> basho/lager
         |    `--> DeadZen/goldrush
         `--> uwiger/parse_trans
         |    `--> uwiger/edown
         `--> eproxus/meck
         `--> boundary/folsom
         |    `--> boundary/bear
         `--> uwiger/setup
         |    `--> uwiger/edown
     `--> benoitc/hackney
         `--> benoitc/erlang-idna
         `--> benoitc/mimerl
         `--> benoitc/metrics
         `--> certifi/erlang-certifi
         `--> deadtrickster/ssl_verify_hostname
`--> ferd/recon

Usage

Add metricman to your list of dependencies in mix.exs:

def deps do
    [{:metricman, github: "xerions/metricman"}]
end

Ensure metricman is started before your application:

def application do
    [applications: [:metricman]]
end

Include the metricman configuration to your config.exs:

try do 
    import_config "../deps/metricman/config/config.exs"
rescue
    _  in _ -> :skip
end

And you can add your own exometer reporter in your config.exs:

config :exometer_core, :report,
    reporters: [
        {:exometer_report_influxdb, [{:protocol, :http},
                                     {:host, "localhost"},
                                     {:port, 8086},
                                     {:db, "exometer"},
                                     {:tags, [{:region, :ru}]}]}
    ]

or for InfluxDB you can use conform config:

influx.db = http://127.0.0.1:8086/default_db
influx.tags = node:node_name,region:de
influx.batch_window_size = 50

See this for more information about configuring the reportes plugins.