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Message #70711
[Bug 1471278] Re: target removal on detaching volume with multi-attach flag
Multi-attach functionality is now implemented in both Cinder and Nova,
which should make this bug invalid. In case the symptom appears again
the bug shall be re-opened.
Blueprint page with more details:
https://blueprints.launchpad.net/nova/+spec/multi-attach-volume
** Changed in: nova
Status: Incomplete => Invalid
** Changed in: cinder
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1471278
Title:
target removal on detaching volume with multi-attach flag
Status in Cinder:
Fix Committed
Status in OpenStack Compute (nova):
Invalid
Bug description:
Cinder-volume removes target on detaching volume with multi-attach flag even
if the volume still has attachments.
This bug has been found during the development of volume-multi-attach support for nova.
To reproduce it in devstack:
- get multi-attach support for nova: https://review.openstack.org/#/c/153038/
- create a volume with multi-attach flag: cinder create 1 --allow-multiattach
- create two instances (host was the same for both vms in our case)
- attach volume to the instances
- check iscsi target: tgtadm --lld iscsi --mode target --op show
- check iscsi session: iscsiadm -m session -P 3
- detach the volume from one of the vms
- check iscsi target/session again
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