Module: Karafka::Pro::Processing::Strategies::DlqLrj

Includes:
Dlq, Lrj
Included in:
DlqLrjMom
Defined in:
lib/karafka/pro/processing/strategies/dlq_lrj.rb

Overview

DLQ enabled Long-Running Job enabled

Constant Summary collapse

FEATURES =

Features for this strategy

%i[
  dead_letter_queue
  long_running_job
].freeze

Constants included from Lrj

Lrj::MAX_PAUSE_TIME

Instance Method Summary collapse

Methods included from Lrj

#handle_before_enqueue, #handle_revoked

Methods included from Default

#handle_before_consume, #handle_before_enqueue, #handle_consume, #handle_revoked

Methods included from Karafka::Processing::Strategies::Default

#handle_before_consume, #handle_before_enqueue, #handle_consume, #handle_revoked, #handle_shutdown

Methods included from Karafka::Processing::Strategies::Base

#handle_before_consume, #handle_before_enqueue, #handle_consume, #handle_revoked, #handle_shutdown

Methods included from Dlq

#dispatch_to_dlq, #dispatch_to_dlq?, #find_skippable_message

Instance Method Details

#handle_after_consume ⇒ Object

LRJ standard flow after consumption with DLQ dispatch



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# File 'lib/karafka/pro/processing/strategies/dlq_lrj.rb', line 32

def handle_after_consume
  coordinator.on_finished do |last_group_message|
    if coordinator.success?
      coordinator.pause_tracker.reset

      return if coordinator.manual_pause?

      mark_as_consumed(last_group_message) unless revoked?
      seek(coordinator.seek_offset) unless revoked?

      resume
    elsif coordinator.pause_tracker.attempt <= topic.dead_letter_queue.max_retries
      retry_after_pause
    else
      coordinator.pause_tracker.reset

      unless revoked?
        skippable_message = find_skippable_message
        dispatch_to_dlq(skippable_message) if dispatch_to_dlq?
        mark_as_consumed(skippable_message)
      end

      # This revoke might have changed state due to marking, hence checked again
      seek(coordinator.seek_offset) unless revoked?

      resume
    end
  end
end