Class: OpenTelemetry::Sampler::XRay::FallbackSampler

Inherits:
Object
  • Object
show all
Defined in:
lib/opentelemetry/sampler/xray/fallback_sampler.rb

Overview

FallbackSampler samples 1 req/sec and additional 5% of requests using TraceIdRatioBasedSampler.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FallbackSampler

Returns a new instance of FallbackSampler.



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# File 'lib/opentelemetry/sampler/xray/fallback_sampler.rb', line 14

def initialize
  @fixed_rate_sampler = OpenTelemetry::SDK::Trace::Samplers::TraceIdRatioBased.new(0.05)
  @rate_limiting_sampler = RateLimitingSampler.new(1)
end

Instance Method Details

#description ⇒ Object 



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# File 'lib/opentelemetry/sampler/xray/fallback_sampler.rb', line 29

def description
  'FallbackSampler{fallback sampling with sampling config of 1 req/sec and 5% of additional requests}'
end

#should_sample?(trace_id:, parent_context:, links:, name:, kind:, attributes:) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/opentelemetry/sampler/xray/fallback_sampler.rb', line 19

def should_sample?(trace_id:, parent_context:, links:, name:, kind:, attributes:)
  sampling_result = @rate_limiting_sampler.should_sample?(
    trace_id: trace_id, parent_context: parent_context, links: links, name: name, kind: kind, attributes: attributes
  )

  return sampling_result if sampling_result.instance_variable_get(:@decision) != OpenTelemetry::SDK::Trace::Samplers::Decision::DROP

  @fixed_rate_sampler.should_sample?(trace_id: trace_id, parent_context: parent_context, links: links, name: name, kind: kind, attributes: attributes)
end