When the backup is rolled back to the volume, incompleteRead offen happens, the exception is as follows:
21-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver [-] ('Connection broken: IncompleteRead(49910400 bytes read, 421248 more expected)', IncompleteRead(49910400 bytes read, 421248 more expected)): ProtocolError: ('Connection broken: IncompleteRead(49910400 bytes read, 421248 more expected)', IncompleteRead(49910400 bytes read, 421248 more expected))
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver Traceback (most recent call last):
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver File "/var/lib/openstack/lib/python2.7/site-packages/cinder/backup/chunkeddriver.py", line 734, in _restore_object
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver body = reader.read()
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver File "/var/lib/openstack/lib/python2.7/site-packages/cinder/backup/drivers/swift.py", line 328, in read
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver self.object_name)
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver File "/var/lib/openstack/lib/python2.7/site-packages/swiftclient/client.py", line 1842, in get_object
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver headers=headers)
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver File "/var/lib/openstack/lib/python2.7/site-packages/swiftclient/client.py", line 1729, in _retry
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver service_token=self.service_token, **kwargs)
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver File "/var/lib/openstack/lib/python2.7/site-packages/swiftclient/client.py", line 1212, in get_object
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver object_body = resp.read()
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver File "/var/lib/openstack/lib/python2.7/site-packages/swiftclient/client.py", line 481, in releasing_read
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver chunk = self.resp.raw.read(*args, **kwargs)
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver File "/var/lib/openstack/lib/python2.7/site-packages/urllib3/response.py", line 430, in read
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver self.gen.throw(type, value, traceback)
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver File "/var/lib/openstack/lib/python2.7/site-packages/urllib3/response.py", line 349, in _error_catcher
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver raise ProtocolError('Connection broken: %r' % e, e)
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver ProtocolError: ('Connection broken: IncompleteRead(49910400 bytes read, 421248 more expected)', IncompleteRead(49910400 bytes read, 421248 more expected))
2021-02-01 08:35:46.515 15 ERROR cinder.backup.chunkeddriver
