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Hi, Malleshi,
Which network service do you use?
Neutron or Nova network?
And, do you have separate network interfaces for VM instances and 
hypervisor?


Best regards,
Felix Lee ~

On 2014年07月07日 13:48, m.channappa.negalur at accenture.com wrote:
> Hello all,
>
> I am installing icehouse setup on 3 node. My entire set up is on virtual
> environment.
>
> ======Nova-compute.log ================
>
> *WARNING nova.virt.libvirt.driver [-] Periodic task is updating the host
> stat, it is trying to get disk instance-0000000b, but disk file was
> removed by concurrent operations such as resize*
>
> **
>
> *WARNING nova.virt.disk.vfs.guestfs
> [req-727a676a-ca15-4cb5-8fc4-73dbf307a14f
> 4f783fbf23304d1682e820740b99f954 7e2d68b079be44048bedd223b3683f19]
> Failed to close augeas aug_close: call launch before using this function*
>
> *(in guestfish, don't forget to use the 'run' command)*
>
> 2014-07-07 17:02:23.852 2916 WARNING nova.virt.libvirt.driver
> [req-df5b6fb1-5304-4f65-bfcf-fbff0ec7298f
> 4f783fbf23304d1682e820740b99f954 7e2d68b079be44048bedd223b3683f19]
> *Timeout waiting for vif plugging callback for instance*
> 75515a86-ba63-4c95-8065-1add9da1f314
>
> 2014-07-07 17:02:24.693 2916 INFO nova.virt.libvirt.driver
> [req-df5b6fb1-5304-4f65-bfcf-fbff0ec7298f
> 4f783fbf23304d1682e820740b99f954 7e2d68b079be44048bedd223b3683f19]
> [instance: 75515a86-ba63-4c95-8065-1add9da1f314] Deleting instance files
> /var/lib/nova/instances/75515a86-ba63-4c95-8065-1add9da1f314
>
> 2014-07-07 17:02:24.693 2916 INFO nova.virt.libvirt.driver
> [req-df5b6fb1-5304-4f65-bfcf-fbff0ec7298f
> 4f783fbf23304d1682e820740b99f954 7e2d68b079be44048bedd223b3683f19]
> [instance: 75515a86-ba63-4c95-8065-1add9da1f314] Deletion of
> /var/lib/nova/instances/75515a86-ba63-4c95-8065-1add9da1f314 complete
>
> 2014-07-07 17:02:24.771 2916 ERROR nova.compute.manager
> [req-df5b6fb1-5304-4f65-bfcf-fbff0ec7298f
> 4f783fbf23304d1682e820740b99f954 7e2d68b079be44048bedd223b3683f19]
> [instance: 75515a86-ba63-4c95-8065-1add9da1f314] *Instance failed to spawn*
>
> 2014-07-07 17:02:24.771 2916 TRACE nova.compute.manager [instance:
> 75515a86-ba63-4c95-8065-1add9da1f314] Traceback (most recent call last):
>
> 2014-07-07 17:02:24.771 2916 TRACE nova.compute.manager [instance:
> 75515a86-ba63-4c95-8065-1add9da1f314]   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1720,
> in _spawn
>
> 2014-07-07 17:02:24.771 2916 TRACE nova.compute.manager [instance:
> 75515a86-ba63-4c95-8065-1add9da1f314]     block_device_info)
>
> 2014-07-07 17:02:24.771 2916 TRACE nova.compute.manager [instance:
> 75515a86-ba63-4c95-8065-1add9da1f314]   File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line
> 2253, in spawn
>
> 2014-07-07 17:02:24.771 2916 TRACE nova.compute.manager [instance:
> 75515a86-ba63-4c95-8065-1add9da1f314]     block_device_info)
>
> 2014-07-07 17:02:24.771 2916 TRACE nova.compute.manager [instance:
> 75515a86-ba63-4c95-8065-1add9da1f314]   File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line
> 3663, in _create_domain_and_network
>
> 2014-07-07 17:02:24.771 2916 TRACE nova.compute.manager [instance:
> 75515a86-ba63-4c95-8065-1add9da1f314]     raise
> exception.VirtualInterfaceCreateException()
>
> 2014-07-07 17:02:24.771 2916 TRACE nova.compute.manager [instance:
> 75515a86-ba63-4c95-8065-1add9da1f314] VirtualInterfaceCreateException:
> Virtual Interface creation failed
>
> I got the below error from horizon
>
> *virtual interface creation failed *.
>
> As per the link
> https://ask.openstack.org/en/question/26985/icehouse-virtual-interface-creation-failed/
>
> If I add below entries in my nova.conf , I am able to launch a instance
> but I ll be disconnected from my host machine and I will not be able to
> connect via ssh aslo … again I need to reboot my host  machine to
> connect ..
>
> *vif_plugging_is_fatal: false *
>
> *vif_plugging_timeout: 0*
>
> is there method to fix this ..? Please let me know ,
>
> Regards,
>
> Malleshi CN
>
>
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-- 
Felix H.T Lee                           Academia Sinica Grid & Cloud.
Tel: +886-2-27898308
Office: Room P111, Institute of Physics, 128 Academia Road, Section 2, 
Nankang, Taipei 115, Taiwan