98 lines
3 KiB
Ruby
98 lines
3 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Metrics
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module Subscribers
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# Class for tracking the total time spent in external HTTP
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# See more at https://gitlab.com/gitlab-org/labkit-ruby/-/blob/v0.14.0/lib/gitlab-labkit.rb#L18
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class ExternalHttp < ActiveSupport::Subscriber
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attach_to :external_http
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DEFAULT_STATUS_CODE = 'undefined'
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DETAIL_STORE = :external_http_detail_store
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COUNTER = :external_http_count
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DURATION = :external_http_duration_s
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def self.detail_store
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::Gitlab::SafeRequestStore[DETAIL_STORE] ||= []
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end
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def self.duration
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Gitlab::SafeRequestStore[DURATION].to_f
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end
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def self.request_count
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Gitlab::SafeRequestStore[COUNTER].to_i
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end
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def self.payload
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{
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COUNTER => request_count,
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DURATION => duration
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}
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end
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def request(event)
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payload = event.payload
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add_to_detail_store(event.time, payload)
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add_to_request_store(payload)
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expose_metrics(payload)
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end
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private
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def current_transaction
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::Gitlab::Metrics::WebTransaction.current || ::Gitlab::Metrics::BackgroundTransaction.current
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end
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def add_to_detail_store(start, payload)
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return unless Gitlab::PerformanceBar.enabled_for_request?
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self.class.detail_store << {
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start: start,
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duration: payload[:duration],
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scheme: payload[:scheme],
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method: payload[:method],
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host: payload[:host],
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port: payload[:port],
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path: payload[:path],
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query: payload[:query],
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code: payload[:code],
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exception_object: payload[:exception_object],
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backtrace: Gitlab::BacktraceCleaner.clean_backtrace(caller)
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}
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end
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def add_to_request_store(payload)
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return unless Gitlab::SafeRequestStore.active?
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Gitlab::SafeRequestStore[COUNTER] = Gitlab::SafeRequestStore[COUNTER].to_i + 1
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Gitlab::SafeRequestStore[DURATION] = Gitlab::SafeRequestStore[DURATION].to_f + payload[:duration].to_f
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end
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def expose_metrics(payload)
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return unless current_transaction
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labels = { method: payload[:method], code: payload[:code] || DEFAULT_STATUS_CODE }
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current_transaction.increment(:gitlab_external_http_total, 1, labels) do
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docstring 'External HTTP calls'
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label_keys labels.keys
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end
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current_transaction.observe(:gitlab_external_http_duration_seconds, payload[:duration]) do
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docstring 'External HTTP time'
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buckets [0.001, 0.01, 0.1, 1.0, 2.0, 5.0]
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end
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if payload[:exception_object].present?
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current_transaction.increment(:gitlab_external_http_exception_total, 1) do
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docstring 'External HTTP exceptions'
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end
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end
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end
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end
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end
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end
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end
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