1 files changed, 0 insertions, 49 deletions
diff --git a/lib/gitlab/tracing/rails/active_record_subscriber.rb b/lib/gitlab/tracing/rails/active_record_subscriber.rb
deleted file mode 100644
index 32f5658e57e..00000000000
--- a/lib/gitlab/tracing/rails/active_record_subscriber.rb
+++ /dev/null
@@ -1,49 +0,0 @@
-# frozen_string_literal: true
-
-module Gitlab
-  module Tracing
-    module Rails
-      class ActiveRecordSubscriber
-        include RailsCommon
-
-        ACTIVE_RECORD_NOTIFICATION_TOPIC = 'sql.active_record'
-        OPERATION_NAME_PREFIX = 'active_record:'
-        DEFAULT_OPERATION_NAME = 'sqlquery'
-
-        # Instruments Rails ActiveRecord events for opentracing.
-        # Returns a lambda, which, when called will unsubscribe from the notifications
-        def self.instrument
-          subscriber = new
-
-          subscription = ActiveSupport::Notifications.subscribe(ACTIVE_RECORD_NOTIFICATION_TOPIC) do |_, start, finish, _, payload|
-            subscriber.notify(start, finish, payload)
-          end
-
-          create_unsubscriber [subscription]
-        end
-
-        # For more information on the payloads: https://guides.rubyonrails.org/active_support_instrumentation.html
-        def notify(start, finish, payload)
-          generate_span_for_notification(notification_name(payload), start, finish, payload, tags_for_notification(payload))
-        end
-
-        private
-
-        def notification_name(payload)
-          OPERATION_NAME_PREFIX + (payload[:name].presence || DEFAULT_OPERATION_NAME)
-        end
-
-        def tags_for_notification(payload)
-          {
-            'component' =>        'ActiveRecord',
-            'span.kind' =>        'client',
-            'db.type' =>          'sql',
-            'db.connection_id' => payload[:connection_id],
-            'db.cached' =>        payload[:cached] || false,
-            'db.statement' =>     payload[:sql]
-          }
-        end
-      end
-    end
-  end
-end