52 lines
1.2 KiB
Ruby
52 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Cluster
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class RackTimeoutObserver
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TRANSITION_STATES = %i(ready active).freeze
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def initialize
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@counter = Gitlab::Metrics.counter(:rack_requests_total, 'Number of requests in a given rack state')
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end
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# returns the Proc to be used as the observer callback block
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def callback
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method(:log_timeout_exception)
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end
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private
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def log_timeout_exception(env)
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info = env[::Rack::Timeout::ENV_INFO_KEY]
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return unless info
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return if TRANSITION_STATES.include?(info.state)
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@counter.increment(labels(info, env))
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end
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def labels(info, env)
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params = controller_params(env) || grape_params(env) || {}
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{
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controller: params['controller'],
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action: params['action'],
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route: params['route'],
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state: info.state
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}
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end
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def controller_params(env)
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env['action_dispatch.request.parameters']
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end
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def grape_params(env)
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endpoint = env[Grape::Env::API_ENDPOINT]
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route = endpoint&.route&.pattern&.origin
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return unless route
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{ 'route' => route }
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end
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end
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end
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end
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