SAWarning: Setting backref / back_populates on relationship

[Maurice Escher]

Hi,

there is a lot of noise in my logs since I updated to the victoria release.

Zuul has it, too, e.g. http://paste.openstack.org/show/804573/
The warnings are there on ubuntu-bionic as well as ubuntu-focal and on all python versions (36,38,39)

sqlalchemy is somehow not happy with ShareSnapshot and ShareGroupSnapshot and the relationships to their instances.

Apart from the fact that the logs are noisy, they may hint to a real problem.

Please help me to get rid of those.

Thanks,
Maurice

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/manila/+/788691

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/manila/+/788691
Committed: https://opendev.org/openstack/manila/commit/e5d0c0e77a9c395a5b143dde4d227261ff43fa21
Submitter: "Zuul (22348)"
Branch: master

commit e5d0c0e77a9c395a5b143dde4d227261ff43fa21
Author: Chuan Miao <email address hidden>
Date: Tue Mar 23 12:16:16 2021 +0100

    Pass sync_backref=False to relationship call

    Need to bump the lower-constraint of sqlalchemy
    to a version where 'sync_backref' was introduced [1]

    [1] https://docs.sqlalchemy.org/en/13/orm/relationship_api.html#sqlalchemy.orm.relationship.params.sync_backref
    Change-Id: I589281d8e77a160adcd48b8d3e4951441f843463
    Closes-Bug: #1924806
    Signed-off-by: Goutham Pacha Ravi <email address hidden>

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/manila 13.0.0.0rc1 release candidate.