1 files changed, 13 insertions, 4 deletions
diff --git a/app/uploaders/object_storage.rb b/app/uploaders/object_storage.rb
index c6ea12cbe9d..b8ecfc4ee2b 100644
--- a/app/uploaders/object_storage.rb
+++ b/app/uploaders/object_storage.rb
@@ -73,6 +73,15 @@ module ObjectStorage
                                                 upload.id)
       end
 
+      def exclusive_lease_key
+        # For FileUploaders, model may have many uploaders. In that case
+        # we want to use exclusive key per upload, not per model to allow
+        # parallel migration
+        key_object = upload || model
+
+        "object_storage_migrate:#{key_object.class}:#{key_object.id}"
+      end
+
       private
 
       def current_upload_satisfies?(paths, model)
@@ -316,6 +325,10 @@ module ObjectStorage
       super
     end
 
+    def exclusive_lease_key
+      "object_storage_migrate:#{model.class}:#{model.id}"
+    end
+
     private
 
     def schedule_background_upload?
@@ -382,10 +395,6 @@ module ObjectStorage
       end
     end
 
-    def exclusive_lease_key
-      "object_storage_migrate:#{model.class}:#{model.id}"
-    end
-
     def with_exclusive_lease
       lease_key = exclusive_lease_key
       uuid = Gitlab::ExclusiveLease.new(lease_key, timeout: 1.hour.to_i).try_obtain