Class: LightStep::Reporter
- Inherits:
-
Object
- Object
- LightStep::Reporter
- Defined in:
- lib/lightstep/reporter.rb
Overview
Reporter builds up reports of spans and flushes them to a transport
Constant Summary collapse
- DEFAULT_PERIOD_SECONDS =
3.0
Instance Attribute Summary collapse
-
#max_span_records ⇒ Object
Returns the value of attribute max_span_records.
-
#period ⇒ Object
Returns the value of attribute period.
Instance Method Summary collapse
- #add_span(span) ⇒ Object
- #clear ⇒ Object
- #flush ⇒ Object
-
#initialize(max_span_records:, transport:, guid:, component_name:, tags: {}) ⇒ Reporter
constructor
A new instance of Reporter.
Constructor Details
#initialize(max_span_records:, transport:, guid:, component_name:, tags: {}) ⇒ Reporter
Returns a new instance of Reporter.
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# File 'lib/lightstep/reporter.rb', line 10 def initialize(max_span_records:, transport:, guid:, component_name:, tags: {}) @max_span_records = max_span_records @span_records = Concurrent::Array.new @dropped_spans = Concurrent::AtomicFixnum.new @transport = transport @period = DEFAULT_PERIOD_SECONDS start_time = LightStep.micros(Time.now) @report_start_time = start_time @runtime = { guid: guid, start_micros: start_time, group_name: component_name, attrs: [ {Key: "lightstep.tracer_platform", Value: "ruby"}, {Key: "lightstep.tracer_version", Value: LightStep::VERSION}, {Key: "lightstep.tracer_platform_version", Value: RUBY_VERSION} ] + .map{|k,v| {Key: k.to_s, Value: v.to_s}} }.freeze reset_on_fork end |
Instance Attribute Details
#max_span_records ⇒ Object
Returns the value of attribute max_span_records.
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# File 'lib/lightstep/reporter.rb', line 7 def max_span_records @max_span_records end |
#period ⇒ Object
Returns the value of attribute period.
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# File 'lib/lightstep/reporter.rb', line 8 def period @period end |
Instance Method Details
#add_span(span) ⇒ Object
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# File 'lib/lightstep/reporter.rb', line 34 def add_span(span) reset_on_fork @span_records.push(span.to_h) if @span_records.size > max_span_records @span_records.shift @dropped_spans.increment end end |
#clear ⇒ Object
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# File 'lib/lightstep/reporter.rb', line 44 def clear reset_on_fork span_records = @span_records.slice!(0, @span_records.length) @dropped_spans.increment(span_records.size) end |
#flush ⇒ Object
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# File 'lib/lightstep/reporter.rb', line 51 def flush reset_on_fork return if @span_records.empty? now = LightStep.micros(Time.now) span_records = @span_records.slice!(0, @span_records.length) dropped_spans = 0 @dropped_spans.update do |old| dropped_spans = old 0 end report_request = { runtime: @runtime, oldest_micros: @report_start_time, youngest_micros: now, span_records: span_records, internal_metrics: { counts: [{ name: 'spans.dropped', int64_value: dropped_spans }] } } @report_start_time = now begin @transport.report(report_request) rescue StandardError => e LightStep.logger.error "LightStep error reporting to collector: #{e.}" # an error occurs, add the previous dropped_spans and count of spans # that would have been recorded @dropped_spans.increment(dropped_spans + span_records.length) end end |