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

William Josefsson william.josefson at gmail.com
Wed Sep 28 14:55:28 UTC 2016


thanks Mike! yes, I checked and I've got the versions you mentioned
installed:

yum list installed | grep "qemu-"
qemu-img.x86_64                   10:1.5.3-105.el7_2.7     @updates
qemu-kvm.x86_64                  10:1.5.3-105.el7_2.7     @updates
qemu-kvm-common.x86_64   10:1.5.3-105.el7_2.7     @updates


Is there any reference or bugzilla ticket for this issue, or how did you
track it down?

Can you also please advice on the command: "yum downgrade qemu-kvm
qemu-kvm-common qemu-img”   as I'm having running VMs in my environment, do
I need to restart libvirtd after this, and would it affect any of my
instances? thx will



On Wed, Sep 28, 2016 at 10:47 PM, Mike Smith <mismith at overstock.com> wrote:

> There is a bug in the following:
>
> qemu-kvm-1.5.3-105.el7_2.7
> qemu-img-1.5.3-105.el7_2.7
> qemu-kvm-common-1.5.3-105.el7_2.7
>
> 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
> Overstock.com <http://overstock.com>
>
>
>
> On Sep 28, 2016, at 8:30 AM, William Josefsson <william.josefson at gmail.com>
> wrote:
>
> Hi,
>
> 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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