shave off another 20% query

app/uploaders/object_storage.rb

@@ -376,12 +376,13 @@ module ObjectStorage
     end
     def with_exclusive_lease
-      uuid = Gitlab::ExclusiveLease.new(exclusive_lease_key, timeout: 1.hour.to_i).try_obtain
-      raise 'exclusive lease already taken' unless uuid
+      lease_key = exclusive_lease_key
+      uuid = Gitlab::ExclusiveLease.new(lease_key, timeout: 1.hour.to_i).try_obtain
+      raise "Exclusive lease #{lease_key} already taken." unless uuid
       yield uuid
     ensure
-      Gitlab::ExclusiveLease.cancel(exclusive_lease_key, uuid)
+      Gitlab::ExclusiveLease.cancel(lease_key, uuid)
     end
     #

app/uploaders/records_uploads.rb

@@ -22,7 +22,7 @@ module RecordsUploads
       Upload.transaction do
         uploads.where(path: upload_path).delete_all
-        upload.destroy! if upload
+        upload.delete if upload
         self.upload = build_upload.tap(&:save!)
       end

spec/uploaders/workers/object_storage/migrate_uploads_worker_spec.rb

 require 'spec_helper'
-MIGRATION_QUERIES = 7
+MIGRATION_QUERIES = 5
 describe ObjectStorage::MigrateUploadsWorker, :sidekiq do
   shared_context 'sanity_check! fails' do
@@ -14,7 +14,6 @@ describe ObjectStorage::MigrateUploadsWorker, :sidekiq do
   let(:to_store) { ObjectStorage::Store::REMOTE }
   def perform(uploads)
-    binding.pry
     described_class.new.perform(uploads.ids, model_class.to_s, mounted_as, to_store)
   rescue ObjectStorage::MigrateUploadsWorker::Report::MigrationFailures
     # swallow