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if Gitlab::Metrics.enabled?
require 'influxdb'
require 'connection_pool'
require 'method_source'
# These are manually require'd so the classes are registered properly with
# ActiveSupport.
require 'gitlab/metrics/subscribers/action_view'
require 'gitlab/metrics/subscribers/active_record'
Gitlab::Application.configure do |config|
config.middleware.use(Gitlab::Metrics::RackMiddleware)
end
Sidekiq.configure_server do |config|
config.server_middleware do |chain|
chain.add Gitlab::Metrics::SidekiqMiddleware
end
end
# This instruments all methods residing in app/models that (appear to) use any
# of the ActiveRecord methods. This has to take place _after_ initializing as
# for some unknown reason calling eager_load! earlier breaks Devise.
Gitlab::Application.config.after_initialize do
Rails.application.eager_load!
models = Rails.root.join('app', 'models').to_s
regex = Regexp.union(
ActiveRecord::Querying.public_instance_methods(false).map(&:to_s)
)
Gitlab::Metrics::Instrumentation.
instrument_class_hierarchy(ActiveRecord::Base) do |klass, method|
# Instrumenting the ApplicationSetting class can lead to an infinite
# loop. Since the data is cached any way we don't really need to
# instrument it.
if klass == ApplicationSetting
false
else
loc = method.source_location
loc && loc[0].start_with?(models) && method.source =~ regex
end
end
end
Gitlab::Metrics::Instrumentation.configure do |config|
config.instrument_instance_methods(Gitlab::Shell)
config.instrument_methods(Gitlab::Git)
config.instrument_instance_methods(Gitlab::Git::Repository)
Gitlab::Git.constants.each do |name|
const = Gitlab::Git.const_get(name)
config.instrument_methods(const) if const.is_a?(Module)
end
Dir[Rails.root.join('app', 'finders', '*.rb')].each do |path|
const = File.basename(path, '.rb').camelize.constantize
config.instrument_instance_methods(const)
end
end
GC::Profiler.enable
Gitlab::Metrics::Sampler.new.start
end
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