Use Gitlab::AppLogger instead of Rails.logger

app/services/projects/hashed_storage/base_repository_service.rb

@@ -15,7 +15,7 @@ module Projects
 
       def initialize(project, old_disk_path, logger: nil)
         @project = project
-        @logger = logger || Rails.logger
+        @logger = logger || Gitlab::AppLogger
         @old_disk_path = old_disk_path
         @old_wiki_disk_path = "#{old_disk_path}.wiki"
         @move_wiki = has_wiki?

app/services/projects/hashed_storage/migration_service.rb

@@ -8,7 +8,7 @@ module Projects
       def initialize(project, old_disk_path, logger: nil)
         @project = project
         @old_disk_path = old_disk_path
-        @logger = logger || Rails.logger
+        @logger = logger || Gitlab::AppLogger
       end
 
       def execute