[Openstack-operators] Nova live-migration failing for RHEL7/CentOS7 VMs

Mike Smith mismith at overstock.com
Wed Sep 28 14:47:12 UTC 2016

There is a bug in the following:


Are you running these versions?  We encountered this same issue and fixed it by running "yum downgrade qemu-kvm qemu-kvm-common qemu-img” which took us back to the el7_2.4

Mike Smith
Lead Cloud Systems Architect

On Sep 28, 2016, at 8:30 AM, William Josefsson <william.josefson at gmail.com<mailto:william.josefson at gmail.com>> wrote:


I have problems with nova live-migration for my CentOS7 and RHEL7 VMs.   The live migrations works fine for Windows2012R2 and Ubuntu1404 VMs.

For CentOS7/RHEL based images I get this error in the Destination node in nova-compute.log. Also console for logged in VM users on the VM freeze.

2016-09-28 10:49:24.101 353935 INFO nova.compute.manager [instance: cd0b605d] VM Resumed (Lifecycle Event)
2016-09-28 10:49:24.339 353935 INFO nova.compute.manager [instance: cd0b605d] VM Resumed (Lifecycle Event)
2016-09-28 10:49:25.866 353935 INFO nova.compute.manager [instance: cd0b605d] Post operation of migration started
2016-09-28 10:49:39.410 353935 INFO nova.compute.manager [instance: cd0b605d] VM Stopped (Lifecycle Event)
2016-09-28 10:49:39.532 353935 WARNING nova.compute.manager [instance: cd0b605d] Instance shutdown by itself. Calling the stop API. Current vm_state: active, current task_state: None, original DB power_state: 4, current VM power_state: 4
2016-09-28 10:49:39.668 353935 INFO nova.compute.manager [instance: cd0b605d] Instance is already powered off in the hypervisor when stop is called.
2016-09-28 10:49:39.736 353935 INFO nova.virt.libvirt.driver [instance: cd0b605d] Instance already shutdown.
2016-09-28 10:49:39.743 353935 INFO nova.virt.libvirt.driver [instance: cd0b605d] Instance destroyed successfully.

Eventually the VM ends up in SHUTDOWN state on the destination node.

I'm on CentOS7/Liberty, and my storage backend is CEPH(Hammer 0.94.9).

Please advice. thx will
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