49 lines
1.2 KiB
Elixir
49 lines
1.2 KiB
Elixir
defmodule KafkaexLagExporter.ConsumerOffsetFetcher do
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@moduledoc """
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Genserver implementation to consume new messages on topic '__consumer_offsets'
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"""
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use GenServer
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require Logger
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@interval 5_000
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def start_link(default) when is_list(default) do
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GenServer.start_link(__MODULE__, default)
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end
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@impl true
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def init(_) do
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Logger.info("Starting #{__MODULE__}")
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clients = Application.get_env(:brod, :clients)
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endpoints = clients[:kafka_client][:endpoints]
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Logger.info("Reveived Kafka endpoints: #{inspect(endpoints)}")
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Process.send_after(self(), :tick, @interval)
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{:ok, %{endpoints: endpoints}}
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end
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@impl true
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def handle_info(:tick, state) do
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consumer_groups = :brod.list_all_groups(state.endpoints, [])
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Enum.each(consumer_groups, fn {broker_info, group_name} ->
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describe_group(broker_info, group_name)
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end)
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Process.send_after(self(), :tick, @interval)
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{:noreply, state}
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end
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defp describe_group(_, []), do: nil
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defp describe_group(broker_info, group_name) do
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Logger.info("Getting info for group name: #{group_name}")
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:brod.describe_groups(broker_info, [], group_name)
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end
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end
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