I found the root cause, etcd3 endpoint is not configured correctly in mistral config on devstack.
This is the same issue as this one for cinder:
https://review.opendev.org/c/openstack/devstack/+/891353
I found the root cause, etcd3 endpoint is not configured correctly in mistral config on devstack.
This is the same issue as this one for cinder:
https:/ /review. opendev. org/c/openstack /devstack/ +/891353