Improve performance RegistryBackfillService with bulk insert

ee/app/models/geo/base_registry.rb

@@ -15,12 +15,13 @@ class Geo::BaseRegistry < Geo::TrackingBase
     where.not(self::MODEL_FOREIGN_KEY => ids)
   end
 
-  # TODO: Investigate replacing this with bulk insert (there was an obstacle).
-  #       https://gitlab.com/gitlab-org/gitlab/issues/197310
   def self.insert_for_model_ids(ids)
-    ids.map do |id|
-      registry = create(self::MODEL_FOREIGN_KEY => id)
-      registry.id
-    end.compact
+    inserts = ids.map do |id|
+      { self::MODEL_FOREIGN_KEY => id, created_at: Time.zone.now }
+    end
+
+    ActiveRecord::InsertAll
+      .new(self, inserts, on_duplicate: :skip, returning: [:id])
+      .execute
   end
 end

ee/app/models/geo/upload_registry.rb

@@ -28,13 +28,15 @@ class Geo::UploadRegistry < Geo::BaseRegistry
     false
   end
 
-  # TODO: Investigate replacing this with bulk insert (there was an obstacle).
-  #       https://gitlab.com/gitlab-org/gitlab/issues/197310
   def self.insert_for_model_ids(attrs)
-    attrs.map do |file_id, file_type|
-      registry = create(file_id: file_id, file_type: file_type)
-      registry.id
-    end.compact
+    inserts = attrs.map do |file_id, file_type|
+      { file_id: file_id, file_type: file_type, created_at: Time.zone.now }
+    end
+
+    ActiveRecord::InsertAll
+      .new(self, inserts, on_duplicate: :skip, returning: [:id])
+      .execute
+      .pluck('id')
   end
 
   def self.with_search(query)

ee/app/services/geo/registry_consistency_service.rb

@@ -99,8 +99,8 @@ module Geo
           registry_class: registry_class.name,
           start: range.first,
           finish: range.last,
-          created: created.size,
-          failed_to_create: untracked.size - created.size
+          created: created.length,
+          failed_to_create: untracked.length - created.length
         }
       )
     end