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module Gitlab
module Metrics
module Subscribers
# Class for tracking the total time spent in Rails cache calls
class RailsCache < ActiveSupport::Subscriber
attach_to :active_support
def cache_read(event)
increment(:cache_read_duration, event.duration)
end
def cache_write(event)
increment(:cache_write_duration, event.duration)
end
def cache_delete(event)
increment(:cache_delete_duration, event.duration)
end
def cache_exist?(event)
increment(:cache_exists_duration, event.duration)
end
def increment(key, duration)
return unless current_transaction
current_transaction.increment(:cache_duration, duration)
current_transaction.increment(key, duration)
end
private
def current_transaction
Transaction.current
end
end
end
end
end
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