I'm still not convinced there is a bug; [1] should have the relevant part of the code just retry the request when it fails.
Liu, please provide exact version (github? package version?) of the code you're using.
[1]: https://github.com/openstack/neutron/blob/5860fb21e966ab8f1e011654dd477d7af35f7a27/neutron/common/utils.py#L726
I'm still not convinced there is a bug; [1] should have the relevant part of the code just retry the request when it fails.
Liu, please provide exact version (github? package version?) of the code you're using.
[1]: https:/ /github. com/openstack/ neutron/ blob/5860fb21e9 66ab8f1e011654d d477d7af35f7a27 /neutron/ common/ utils.py# L726