Hello  
I am using wallaby release openstack and having  issues with cinder volumes as once I try to delete, resize or unshelve the shelved vms the volume_attachement entries do not get deleted in cinder db and therefore the above mentioned operations fail every time. I have to delete these volume_attachement entries manually then it works. Is there any way to fix this issue ?

nova-compute logs:

cinderclient.exceptions.ClientException: Unable to update attachment.(Invalid volume: duplicate connectors detected on volume

Help will be really appreciated Thanks !
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Thanks and Regards,

Hemant Sonawane