Class: Kafka::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/deimos/monkey_patches/ruby_kafka_heartbeat.rb

Instance Method Summary collapse

Instance Method Details

#consumer(group_id:, session_timeout: 30, offset_commit_interval: 10, offset_commit_threshold: 0, heartbeat_interval: 10, offset_retention_time: nil, fetcher_max_queue_size: 100) ⇒ Object 



23
24
25
26
27
28
29
30
31
32
33
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
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
 
# File 'lib/deimos/monkey_patches/ruby_kafka_heartbeat.rb', line 23

def consumer(
    group_id:,
    session_timeout: 30,
    offset_commit_interval: 10,
    offset_commit_threshold: 0,
    heartbeat_interval: 10,
    offset_retention_time: nil,
    fetcher_max_queue_size: 100
  )
  cluster = initialize_cluster

  instrumenter = DecoratingInstrumenter.new(@instrumenter,
                                            group_id: group_id)

  # The Kafka protocol expects the retention time to be in ms.
  retention_time = (offset_retention_time && offset_retention_time * 1_000) || -1

  group = ConsumerGroup.new(
    cluster: cluster,
    logger: @logger,
    group_id: group_id,
    session_timeout: session_timeout,
    retention_time: retention_time,
    instrumenter: instrumenter
  )

  fetcher = Fetcher.new(
    cluster: initialize_cluster,
    group: group,
    logger: @logger,
    instrumenter: instrumenter,
    max_queue_size: fetcher_max_queue_size
  )

  offset_manager = OffsetManager.new(
    cluster: cluster,
    group: group,
    fetcher: fetcher,
    logger: @logger,
    commit_interval: offset_commit_interval,
    commit_threshold: offset_commit_threshold,
    offset_retention_time: offset_retention_time
  )

  heartbeat = Heartbeat.new(
    group: group,
    interval: heartbeat_interval,
    instrumenter: instrumenter
  )

  Consumer.new(
    cluster: cluster,
    logger: @logger,
    instrumenter: instrumenter,
    group: group,
    offset_manager: offset_manager,
    fetcher: fetcher,
    session_timeout: session_timeout,
    heartbeat: heartbeat
  )
end