[Openstack-operators] Nova live-migration failing for RHEL7/CentOS7 VMs
william.josefson at gmail.com
Thu Sep 29 09:00:05 UTC 2016
thanks everyone, I verified setting mem_stats_period_seconds = 0 as
suggested by Corbin in nova.conf libvirt section, and then restarting
openstack-nova-compute service and it works!
While this seems to be a workable workaround I'm not sure what's the plans
to permanently fix this in CentOS7.2? thx will
On Wed, Sep 28, 2016 at 11:37 PM, Corbin Hendrickson <
corbin.hendrickson at endurance.com> wrote:
> Oh you can read it in the bug thread, but I forgot to mention, if you put
> in your nova.conf under the libvirt section mem_stats_period_seconds = 0,
> and restart nova on the destination (although i'd say just do it on both)
> it will no longer hit the bug. I tested this a couple weeks back with
> Corbin Hendrickson
> Endurance Cloud Development Lead - Manager
> Cell: 801-400-0464
> On Wed, Sep 28, 2016 at 9:34 AM, Corbin Hendrickson <
> corbin.hendrickson at endurance.com> wrote:
>> It unfortunately is affecting virtually all of Redhat's latest qemu-kvm
>> packages. The bug that was unintentionally introduced was done so in
>> response to CVE-2016-5403 Qemu: virtio: unbounded memory allocation on
>> host via guest leading to DoS.
>> Late in the bug thread, they finally posted to a new bug created for the
>> breaking of live migrate via *Bug 1371943*
>> <https://bugzilla.redhat.com/show_bug.cgi?id=1371943> - RHSA-2016-1756
>> breaks migration of instances.
>> Based off their posts i've been following it's likely going to "hit the
>> shelves" when RHEL 7.3 / CentOS 7.3 comes out. It does look like they are
>> backporting it to all their versions of RHEL so that's good.
>> But yes this does affect 2.3 as well.
>> Corbin Hendrickson
>> Endurance Cloud Development Lead - Manager
>> Cell: 801-400-0464
>> On Wed, Sep 28, 2016 at 9:13 AM, Van Leeuwen, Robert <
>> rovanleeuwen at ebay.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
>>> You might be better of using the RHEV qemu packages
>>> They are more recent (2.3) and have more features compiled into them.
>>> Robert van Leeuwen
>>> OpenStack-operators mailing list
>>> OpenStack-operators at lists.openstack.org
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