Fix CREATED status if it is failed while uploading object storage dis…

…k metadata (#175)

ch_backup/ch_backup.py

@@ -186,6 +186,8 @@ def backup(
                         ],
                     )
 
+                # Upload operations are async. Should wait until they are all finished.
+                self._context.backup_layout.wait()
                 self._context.backup_meta.state = BackupState.CREATED
             except (Exception, TerminatingSignal) as e:
                 logging.critical("Backup failed", exc_info=True)
@@ -201,9 +203,6 @@ def backup(
                 if not self._context.config.get("keep_freezed_data_on_failure"):
                     self._context.ch_ctl.remove_freezed_data()
 
-            # Upload operations are asynch. Should wait until they are all finished.
-            self._context.backup_layout.wait()
-
         return self._context.backup_meta.name, None
 
     # pylint: disable=too-many-arguments,duplicate-code