Hello!
We have an error with creating backups from iscsi volume. Usually, this happens with large backups over 100GB.
2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server [req-f6619913-6f96-4226-8d75-2da3fca722f1 23de1b92e7674cf59486f07ac75b886b a7585b47d1f143e9839c49b4e3bbe1b4 - - -] Exception during message handling: oslo_concurrency.processutils.ProcessExecutionError: Unexpected error while running command. Command: multipath -f 3624a93705842cfae35d7483200015ec6 Exit code: 1 Stdout: '' Stderr: 'Feb 16 00:22:45 | 3624a93705842cfae35d7483200015ec6 is not a multipath device\n' 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server Traceback (most recent call last): 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/oslo_messaging/rpc/server.py", line 165, in _process_incoming 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server res = self.dispatcher.dispatch(message) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/oslo_messaging/rpc/dispatcher.py", line 309, in dispatch 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/oslo_messaging/rpc/dispatcher.py", line 229, in _do_dispatch 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server result = func(ctxt, **new_args) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/cinder/utils.py", line 890, in wrapper 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server return func(self, *args, **kwargs) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/cinder/backup/manager.py", line 410, in create_backup 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server volume_utils.update_backup_error(backup, str(err)) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/oslo_utils/excutils.py", line 227, in __exit__ 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server self.force_reraise() 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/oslo_utils/excutils.py", line 200, in force_reraise 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server raise self.value 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/cinder/backup/manager.py", line 399, in create_backup 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server updates = self._run_backup(context, backup, volume) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/cinder/backup/manager.py", line 493, in _run_backup 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server ignore_errors=True) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/cinder/backup/manager.py", line 1066, in _detach_device 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server force=force, ignore_errors=ignore_errors) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/os_brick/utils.py", line 141, in trace_logging_wrapper 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server return f(*args, **kwargs) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/oslo_concurrency/lockutils.py", line 360, in inner 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server return f(*args, **kwargs) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/os_brick/initiator/connectors/iscsi.py", line 880, in disconnect_volume 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server is_disconnect_call=True) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/os_brick/initiator/connectors/iscsi.py", line 942, in _cleanup_connection 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server self._linuxscsi.flush_multipath_device(multipath_name) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/os_brick/initiator/linuxscsi.py", line 382, in flush_multipath_device 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server root_helper=self._root_helper) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/os_brick/executor.py", line 52, in _execute 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server result = self.__execute(*args, **kwargs) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/os_brick/privileged/rootwrap.py", line 172, in execute 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server return execute_root(*cmd, **kwargs) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/oslo_privsep/priv_context.py", line 247, in _wrap 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server return self.channel.remote_call(name, args, kwargs) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server File "/usr/lib/python3.6/site-packages/oslo_privsep/daemon.py", line 224, in remote_call 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server raise exc_type(*result[2]) 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server oslo_concurrency.processutils.ProcessExecutionError: Unexpected error while running command. 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server Command: multipath -f 3624a93705842cfae35d7483200015ec6 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server Exit code: 1 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server Stdout: '' 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server Stderr: 'Feb 16 00:22:45 | 3624a93705842cfae35d7483200015ec6 is not a multipath device\n' 2023-02-16 00:23:25.298 1920 ERROR oslo_messaging.rpc.server
Could you please help with this error?