35b501f30a
Without this it's impossible to find out what methods/views/queries are executed by a certain controller or Sidekiq worker. While this will increase the total number of series it should stay within reasonable limits due to the amount of "actions" being small enough.
47 lines
1.1 KiB
Ruby
47 lines
1.1 KiB
Ruby
module Gitlab
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module Metrics
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# Rack middleware for tracking Rails requests.
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class RackMiddleware
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CONTROLLER_KEY = 'action_controller.instance'
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def initialize(app)
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@app = app
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end
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# env - A Hash containing Rack environment details.
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def call(env)
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trans = transaction_from_env(env)
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retval = nil
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begin
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retval = trans.run { @app.call(env) }
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# Even in the event of an error we want to submit any metrics we
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# might've gathered up to this point.
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ensure
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if env[CONTROLLER_KEY]
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tag_controller(trans, env)
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end
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trans.finish
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end
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retval
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end
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def transaction_from_env(env)
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trans = Transaction.new
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trans.set(:request_uri, env['REQUEST_URI'])
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trans.set(:request_method, env['REQUEST_METHOD'])
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trans
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end
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def tag_controller(trans, env)
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controller = env[CONTROLLER_KEY]
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trans.action = "#{controller.class.name}##{controller.action_name}"
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end
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end
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end
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end
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