Public bug reported:
While attempting nova volume-attach on current devstack deployment I'm getting
intermittent failures during the attach operation:
http://paste.openstack.org/show/641383/
Each time I've encountered this I've been able to simply rerun the
command and it completes succesfully.
To reproduce:
Deploy devstack with cinder multi-attach patches
(https://review.openstack.org/#/c/531569/)
Create a multiattach volume-type:
cinder type-create multiattach
cinder type-key multiattach set multiattach='<is> True'
Create two instances:
nova boot --image <image-id> --flavor 1 i-1
nova boot --image <image-id> --flavor 1 i-2
Create a multiattach volume (cinder create --volume-type multiattach --name
vol-1 1)
Attach the volume to each instance:
nova volume-attach <i-1> <vol-1>)
nova volume-attach <i-2> <vol-1>)
Sometimes this works, sometimes it doesn't. It appears that the
frequency of this failing is proportional to the length of time the Nova
service has been up and running on the system but that might be
nonsense.
I've yet to encounter a case where running the second attach command
again did not succeed.
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1742204
Title:
intermittent attach failures due to libvirt locking error
Status in OpenStack Compute (nova):
New
Bug description:
While attempting nova volume-attach on current devstack deployment I'm
getting intermittent failures during the attach operation:
http://paste.openstack.org/show/641383/
Each time I've encountered this I've been able to simply rerun the
command and it completes succesfully.
To reproduce:
Deploy devstack with cinder multi-attach patches
(https://review.openstack.org/#/c/531569/)
Create a multiattach volume-type:
cinder type-create multiattach
cinder type-key multiattach set multiattach='<is> True'
Create two instances:
nova boot --image <image-id> --flavor 1 i-1
nova boot --image <image-id> --flavor 1 i-2
Create a multiattach volume (cinder create --volume-type multiattach --name
vol-1 1)
Attach the volume to each instance:
nova volume-attach <i-1> <vol-1>)
nova volume-attach <i-2> <vol-1>)
Sometimes this works, sometimes it doesn't. It appears that the
frequency of this failing is proportional to the length of time the
Nova service has been up and running on the system but that might be
nonsense.
I've yet to encounter a case where running the second attach command
again did not succeed.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1742204/+subscriptions
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