Files
kafkaex-lag-exporter/lib/kafkaex_lag_exporter/consumer_offset_fetcher.ex

39 lines
918 B
Elixir

defmodule KafkaexLagExporter.ConsumerOffsetFetcher do
@moduledoc """
Genserver implementation to consume new messages on topic '__consumer_offsets'
"""
use GenServer
require Logger
@interval 5_000
def start_link(default) when is_list(default) do
GenServer.start_link(__MODULE__, default)
end
@impl true
def init(_) do
Logger.info("Starting #{__MODULE__}")
clients = Application.get_env(:brod, :clients)
endpoints = clients[:kafka_client][:endpoints]
Logger.info("Reveived Kafka endpoints: #{inspect(endpoints)}")
Process.send_after(self(), :tick, @interval)
{:ok, %{endpoints: endpoints}}
end
@impl true
def handle_info(:tick, state) do
consumer_groups = :brod.list_all_groups(state.endpoints, [])
Logger.info("Consumer groups state: #{inspect(consumer_groups)}")
Process.send_after(self(), :tick, @interval)
{:noreply, state}
end
end