Track and act upon the number of executed queriesquery-counts

This ensures that we have more visibility in the number of SQL queries
that are executed in web requests. The current threshold is hardcoded to
100 as we will rarely (maybe once or twice) change it.

In production and development we use Sentry if enabled, in the test
environment we raise an error. This feature is also only enabled in
production/staging when running on GitLab.com as it's not very useful to
other users.

1 files changed, 6 insertions, 0 deletions

diff --git a/app/controllers/registrations_controller.rb b/app/controllers/registrations_controller.rb
index d9142311b6f..1848c806c41 100644
--- a/app/controllers/registrations_controller.rb
+++ b/app/controllers/registrations_controller.rb
@@ -1,6 +1,8 @@
 class RegistrationsController < Devise::RegistrationsController
   include Recaptcha::Verify
 
+  before_action :whitelist_query_limiting, only: [:destroy]
+
   def new
     redirect_to(new_user_session_path)
   end
@@ -83,4 +85,8 @@ class RegistrationsController < Devise::RegistrationsController
   def devise_mapping
     @devise_mapping ||= Devise.mappings[:user]
   end
+
+  def whitelist_query_limiting
+    Gitlab::QueryLimiting.whitelist('https://gitlab.com/gitlab-org/gitlab-ce/issues/42380')
+  end
 end