98 lines
2.6 KiB
Ruby
98 lines
2.6 KiB
Ruby
module Gitlab
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module Metrics
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extend Gitlab::CurrentSettings
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RAILS_ROOT = Rails.root.to_s
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METRICS_ROOT = Rails.root.join('lib', 'gitlab', 'metrics').to_s
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PATH_REGEX = /^#{RAILS_ROOT}\/?/
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def self.settings
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@settings ||= {
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enabled: current_application_settings[:metrics_enabled],
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pool_size: current_application_settings[:metrics_pool_size],
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timeout: current_application_settings[:metrics_timeout],
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method_call_threshold: current_application_settings[:metrics_method_call_threshold],
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host: current_application_settings[:metrics_host],
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port: current_application_settings[:metrics_port]
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}
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end
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def self.enabled?
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settings[:enabled] || false
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end
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def self.mri?
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RUBY_ENGINE == 'ruby'
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end
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def self.method_call_threshold
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# This is memoized since this method is called for every instrumented
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# method. Loading data from an external cache on every method call slows
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# things down too much.
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@method_call_threshold ||= settings[:method_call_threshold]
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end
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def self.pool
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@pool
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end
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# Returns a relative path and line number based on the last application call
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# frame.
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def self.last_relative_application_frame
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frame = caller_locations.find do |l|
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l.path.start_with?(RAILS_ROOT) && !l.path.start_with?(METRICS_ROOT)
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end
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if frame
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return frame.path.sub(PATH_REGEX, ''), frame.lineno
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else
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return nil, nil
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end
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end
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def self.submit_metrics(metrics)
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prepared = prepare_metrics(metrics)
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pool.with do |connection|
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prepared.each do |metric|
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begin
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connection.write_points([metric])
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rescue StandardError
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end
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end
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end
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end
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def self.prepare_metrics(metrics)
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metrics.map do |hash|
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new_hash = hash.symbolize_keys
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new_hash[:tags].each do |key, value|
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if value.blank?
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new_hash[:tags].delete(key)
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else
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new_hash[:tags][key] = escape_value(value)
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end
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end
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new_hash
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end
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end
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def self.escape_value(value)
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value.to_s.gsub('=', '\\=')
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end
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# When enabled this should be set before being used as the usual pattern
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# "@foo ||= bar" is _not_ thread-safe.
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if enabled?
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@pool = ConnectionPool.new(size: settings[:pool_size], timeout: settings[:timeout]) do
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host = settings[:host]
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port = settings[:port]
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InfluxDB::Client.
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new(udp: { host: host, port: port })
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end
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end
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end
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end
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