[libvirt-users] Live Migration failure: An error occurred, but the cause is unknown

Koniszewski, Pawel pawel.koniszewski at intel.com
Thu May 14 09:36:06 UTC 2015

Hello Rock,


Can you turn on debug logs in nova.conf and post it on, e.g., http://paste.openstack.org/ ?

Also, please attach logs from libvirt, usually /var/log/libvirt/libvirtd.log (from source host and destination host).


Kind Regards,

Pawel Koniszewski


From: libvirt-users-bounces at redhat.com [mailto:libvirt-users-bounces at redhat.com] On Behalf Of RockCui at zhaoxin.com
Sent: Tuesday, May 12, 2015 12:20 PM
To: libvirt-users at redhat.com
Subject: [libvirt-users] Live Migration failure: An error occurred, but the cause is unknown


Hi everyone,


I’m testing the new Openstack Kilo on Ubuntu-15.04 and hypervisor is KVM. 

I can creat instance successfully , but live migration is always failed. Error report like this (from nova-compute.log on a compute node):


2015-05-12 18:11:12.753 3641 INFO nova.virt.libvirt.driver [-] [instance: cee4965c-b298-4b5b-8669-bee9ac72c720] Migration running for 0 secs, memory 0% remaining; (bytes processed=0, remaining=0, total=0)

2015-05-12 18:11:16.342 3641 ERROR nova.virt.libvirt.driver [-] [instance: cee4965c-b298-4b5b-8669-bee9ac72c720] Live Migration failure: An error occurred, but the cause is unknown

2015-05-12 18:11:16.777 3641 ERROR nova.virt.libvirt.driver [-] [instance: cee4965c-b298-4b5b-8669-bee9ac72c720] Migration operation has aborted


If someone has a clue what may cause this, pls help. 



Rock Cui



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