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module Gitlab
module Metrics
module Subscribers
# Class for tracking the total query duration of a transaction.
class ActiveRecord < ActiveSupport::Subscriber
attach_to :active_record
def sql(event)
return unless current_transaction
metric_sql_duration_seconds.observe(current_transaction.labels, event.duration / 1000.0)
current_transaction.increment(:sql_duration, event.duration, false)
current_transaction.increment(:sql_count, 1, false)
end
private
def current_transaction
Transaction.current
end
def metric_sql_duration_seconds
@metric_sql_duration_seconds ||= Gitlab::Metrics.histogram(
:gitlab_sql_duration_seconds,
'SQL time',
Transaction::BASE_LABELS,
[0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.500, 2.0, 10.0]
)
end
end
end
end
end
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