Class: Datadog::Tracing::Contrib::Sidekiq::ServerTracer

Inherits:
Object
  • Object
show all
Includes:
Utils
Defined in:
lib/datadog/tracing/contrib/sidekiq/server_tracer.rb

Overview

Tracer is a Sidekiq server-side middleware which traces executed jobs

Constant Summary collapse

QUANTIZE_SHOW_ALL = 
{ args: { show: :all } }.freeze

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ ServerTracer

Returns a new instance of ServerTracer.



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# File 'lib/datadog/tracing/contrib/sidekiq/server_tracer.rb', line 20

def initialize(options = {})
  @sidekiq_service = options[:service_name] || configuration[:service_name]
  @error_handler = options[:error_handler] || configuration[:error_handler]
end

Instance Method Details

#call(worker, job, queue) ⇒ Object

rubocop:disable Metrics/MethodLength rubocop:disable Metrics/AbcSize



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# File 'lib/datadog/tracing/contrib/sidekiq/server_tracer.rb', line 27

def call(worker, job, queue)
  resource = job_resource(job)

  if configuration[:distributed_tracing]
    trace_digest = propagation.extract(job)
    Datadog::Tracing.continue_trace!(trace_digest)
  end

  service = worker_config(resource, :service_name) || @sidekiq_service
  # DEV-2.0: Remove `tag_args`, as `quantize` can fulfill the same contract
  tag_args = worker_config(resource, :tag_args) || configuration[:tag_args]
  quantize = worker_config(resource, :quantize) || configuration[:quantize]

  Datadog::Tracing.trace(
    Ext::SPAN_JOB,
    service: service,
    span_type: Datadog::Tracing::Metadata::Ext::AppTypes::TYPE_WORKER,
    on_error: @error_handler
  ) do |span|
    span.resource = resource

    span.set_tag(Contrib::Ext::Messaging::TAG_SYSTEM, Ext::TAG_COMPONENT)

    span.set_tag(Datadog::Tracing::Metadata::Ext::TAG_COMPONENT, Ext::TAG_COMPONENT)
    span.set_tag(Datadog::Tracing::Metadata::Ext::TAG_OPERATION, Ext::TAG_OPERATION_JOB)

    span.set_tag(
      Datadog::Tracing::Metadata::Ext::TAG_KIND,
      Datadog::Tracing::Metadata::Ext::SpanKind::TAG_CONSUMER
    )

    # Set analytics sample rate
    if Contrib::Analytics.enabled?(configuration[:analytics_enabled])
      Contrib::Analytics.set_sample_rate(span, configuration[:analytics_sample_rate])
    end

    # Measure service stats
    Contrib::Analytics.set_measured(span)

    span.set_tag(Ext::TAG_JOB_ID, job['jid'])
    span.set_tag(Ext::TAG_JOB_RETRY, job['retry'])
    span.set_tag(Ext::TAG_JOB_RETRY_COUNT, job['retry_count'])
    span.set_tag(Ext::TAG_JOB_QUEUE, job['queue'])
    span.set_tag(Ext::TAG_JOB_WRAPPER, job['class']) if job['wrapped']
    span.set_tag(Ext::TAG_JOB_DELAY, 1000.0 * (Time.now.utc.to_f - job['enqueued_at'].to_f))

    args = job['args']
    if args && !args.empty?
      quantize = tag_args ? QUANTIZE_SHOW_ALL : quantize
      span.set_tag(Ext::TAG_JOB_ARGS, quantize_args(quantize, args))
    end

    yield
  end
  # rubocop:enable Metrics/MethodLength
  # rubocop:enable Metrics/AbcSize
end