Module: Karafka::Pro::Processing::Strategies::Lrj::Ftr

Includes:
Ftr::Default, Default
Included in:
Dlq::FtrLrj, FtrMom, FtrVp
Defined in:
lib/karafka/pro/processing/strategies/lrj/ftr.rb

Overview

Filtering enabled Long-Running Job enabled

In general aside from throttling this one will behave the same way as the Lrj

Constant Summary collapse

FEATURES =

Features for this strategy

%i[
  filtering
  long_running_job
].freeze

Constants included from Default

Default::MAX_PAUSE_TIME

Instance Method Summary collapse

Methods included from Default

#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

#commit_offsets, #commit_offsets!, #handle_before_consume, #handle_before_enqueue, #handle_consume, #handle_idle, #handle_revoked, #handle_shutdown, #mark_as_consumed, #mark_as_consumed!

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

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

Methods included from Ftr::Default

#handle_idle, #handle_post_filtering

Instance Method Details

#handle_after_consumeObject

LRJ standard flow after consumption with potential throttling on success



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
# File 'lib/karafka/pro/processing/strategies/lrj/ftr.rb', line 34

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

      # Manual pausing has the highest priority
      return if coordinator.manual_pause?

      # It's not a MoM, so for successful we need to mark as consumed
      mark_as_consumed(last_group_message) unless revoked?

      # If still not revoked and was throttled, we need to apply throttling logic
      if coordinator.filtered? && !revoked?
        handle_post_filtering
      elsif !revoked? && !coordinator.manual_seek?
        # If not revoked and not throttled, we move to where we were suppose to and
        # resume
        seek(coordinator.seek_offset, false)
        resume
      else
        resume
      end
    else
      # If processing failed, we need to pause
      # For long running job this will overwrite the default never-ending pause and
      # will cause the processing to keep going after the error backoff
      retry_after_pause
    end
  end
end