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module Gitlab
module Metrics
module Subscribers
# Class for tracking raw SQL queries.
#
# Queries are obfuscated before being logged to ensure no private data is
# exposed via InfluxDB/Grafana.
class ActiveRecord < ActiveSupport::Subscriber
attach_to :active_record
SERIES = 'sql_queries'
def sql(event)
return unless current_transaction
values = values_for(event)
tags = tags_for(event)
current_transaction.add_metric(SERIES, values, tags)
end
private
def values_for(event)
{ duration: event.duration }
end
def tags_for(event)
sql = ObfuscatedSQL.new(event.payload[:sql]).to_s
tags = { sql: sql }
file, line = Metrics.last_relative_application_frame
if file and line
tags[:file] = file
tags[:line] = line
end
tags
end
def current_transaction
Transaction.current
end
end
end
end
end
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