Why aren't metrics sent from Resque tasks?

Question

Ruby on Rails

The situation is such that metrics are sent at the start of the application, but not from tasks.

Trial metric:

DATADOG_CLIENT.increment('bbb', by: 1, tags: ['step:foo'])

At the same time , it app_boot.countis visible on the Datadog charts.

The project uses the following configuration:

config/initializers/datadog.rb

unless Rails.env.test? || ENV['DISABLE_DATADOG'].present?
  require 'datadog/statsd'

  if Rails.env.development?
    Datadog.configure do |c|
      c.use :rails, service_name: "#{`whoami`}-rails-app"
    end
  else
    Datadog.configure do |c|
      c.use :rails, service_name: "#{Rails.env}-rails-app"
      c.use :resque, { service_name: 'resque' }
    end
  end
  # Create a DogStatsD client instance.
  DATADOG_CLIENT = Datadog::Statsd.new('localhost', 8125)

  DATADOG_CLIENT.increment('app_boot.count', tags: ["env:#{Rails.env}"])

  at_exit do
    # release resources used by the client instance
    DATADOG_CLIENT.close()
  end
end

Gems:
ddtrace (0.49.0)
dogstatsd-ruby (5.0.1)

Need to be configured differently?

Answer 1

The gem developer advised:
1. update dogstatsd-ruby to version 5.3.0
2. add the optionsingle_thread: true

DATADOG_CLIENT = Datadog::Statsd.new('localhost', 8125, single_thread: true)

which solved the problem.