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[Bug 1463856] [NEW] Cinder volume isn't available after instance soft-deleted timer expired while volume is still attached

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1463856@xxxxxxxxxxxxxxxxxx>
Date: Fri, 01 Jul 2016 14:10:24 -0000
Reply-to: Bug 1463856 <1463856@xxxxxxxxxxxxxxxxxx>
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Description of problem:
There is a feature in nova that allow you to restore a SOFT-DELETED instance (nova restore) when an instance is terminated there is a certain amount of time(defined in nova.conf - reclaim_instance_interval) for one to restore the instance including volume and floating IP attachments. Once this timer expire the instance goes to DELETED status and should release all its resources including the attached volume.
In this case the volume remain attached to an instance in DELETED state and not usable for a non admin user.

Version-Release number of selected component (if applicable):
# rpm -qa | grep -i cinder
openstack-cinder-2015.1.0-2.el7ost.noarch
python-cinder-2015.1.0-2.el7ost.noarch
python-cinderclient-1.1.1-1.el7ost.noarch

# rpm -qa | grep -i nova
openstack-nova-cert-2015.1.0-4.el7ost.noarch
openstack-nova-compute-2015.1.0-4.el7ost.noarch
openstack-nova-common-2015.1.0-4.el7ost.noarch
python-nova-2015.1.0-4.el7ost.noarch
openstack-nova-conductor-2015.1.0-4.el7ost.noarch
openstack-nova-scheduler-2015.1.0-4.el7ost.noarch
openstack-nova-console-2015.1.0-4.el7ost.noarch
python-novaclient-2.23.0-1.el7ost.noarch
openstack-nova-api-2015.1.0-4.el7ost.noarch
openstack-nova-novncproxy-2015.1.0-4.el7ost.noarch

How reproducible:
100%

Steps to Reproduce:
1. Edit /etc/nova/nova.conf and change reclaim_instance_interval=60
2. Restart nova service
3. Create a volume and attach it to an instance
4. Delete instance - make sure its in "SOFT-DELETE" state
5. Wait for the timer to expire and make sure the instance is in "DELETED" state
6. Volume still shown as attached in CLI and in Horizon Its shown as attached to "None"

Actual results:
Volume is not usable

Expected results:
Volume should be released and usable

Additional info:
Attaching cinder and nova log dir

** Affects: nova
Importance: Undecided
Status: New

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Cinder volume isn't available after instance soft-deleted timer expired while volume is still attached
https://bugs.launchpad.net/bugs/1463856
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