Open Stack

I realize just now that the repository setup instructions aren't on
that wiki page.

The package you want to install is "centos-release-qemu-ev".
That'll setup the required repositories.

David Moreau Simard
Senior Software Engineer | Openstack RDO

dmsimard = [irc, github, twitter]


On Fri, Sep 30, 2016 at 3:04 PM, David Moreau Simard <dms at redhat.com> wrote:
> If you are deploying on CentOS (with RDO?), you can enable the CentOS
> Virtualization special interest group [1] repository.
>
> The repository contains qemu-kvm-ev >= 2.3 backported from RHEV.
> It is recommended as the qemu-kvm version from base CentOS
> repositories is not high enough and lacks some features (things like
> snapshots, iirc).
>
> qemu-kvm >= 2.3 is actually a requirement in RDO >= Newton and we'll
> bundle the CentOS virtualization SIG repository in our release
> packages.
>
> [1]: https://wiki.centos.org/SpecialInterestGroup/Virtualization
>
> David Moreau Simard
> Senior Software Engineer | Openstack RDO
>
> dmsimard = [irc, github, twitter]
>
>
> On Thu, Sep 29, 2016 at 5:00 AM, William Josefsson
> <william.josefson at gmail.com> wrote:
>> 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 success.
>>>
>>> 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 - 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.
>>>>>
>>>>>
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Robert van Leeuwen
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> OpenStack-operators mailing list
>>>>> OpenStack-operators at lists.openstack.org
>>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
>>>>>
>>>>
>>>
>>
>>
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>>