Flow Monitor

What is it?

Elixir macro for measuring progress of steps in a Flow pipeline.

Installation

Add flow_monitor as a dependency in your mix.exs file.

defp deps do
  [
     # ...
    {:flow_monitor, "~> x.x.x"},
  ]
end

Where x.x.x equals the version in mix.exs.

Afterwards run mix deps.get in your command line to fetch the dependency.

Usage

FlowMonitor.run/2

Runs the metrics collector on a given Flow pipeline. Results are store in a directory {graph_name}-{timestamp} in a given path. See FlowMonitor.Config for configurable options which can be passed as keyword list opts.

Examples

Specify path for collected metrics, name and title

opts = [
  path: "./metrics",
  graph_name: "collected-metrics",
  graph_title: "Metrics collected from a Flow execution"
]

FlowMonitor.run(
  1..100_000
  |> Flow.from_enumerable()
  |> Flow.map(&(&1 * &1)),

  opts
)

Specify other graph parameters

opts = [
  font_name: "Verdana",
  font_size: 12,
  graph_size: {800, 600},
  graph_range: {1000, 15000}
]

FlowMonitor.run(
  1..100_000
  |> Flow.from_enumerable()
  |> Flow.map(&(&1 * &1)),
  
  opts
)

To-Do

• Add tests