[CentOS-virt] Libvirt enhancement requests

Johnny Hughes johnny at centos.org
Mon Nov 2 17:28:48 UTC 2015


On 10/31/2015 04:34 PM, Jean-Marc LIGER wrote:
> Hi Lucian,
> 
> It seems to be upstream libvirt-1.2.15-2 with options with_xen and
> with_libxl enabled.
> http://cbs.centos.org/koji/buildinfo?buildID=1348
>

Right, and we can use that version, or a newer one and enable rbd as well.

The next question is, is there a difference between the generic rbd and
building against ceph-devel.  (As in, is one ceph only and the other
generic only or can you use both when built against ceph-devel, etc)

Since qemu-kvm-ev enables ceph, if we can also enable ceph in libvirt,
seems like a win to me, if it also does rbd the same as building against
librados2-devel and librbd1-devel.

These may only work with CentOS 7 as well .. have to look at if those
build in CentOS 6.7.

Thoughts?

Thanks,
Johnny Hughes


> Regards,
> Jean-Marc
> 
> Le 28/10/2015 09:38, Nux! a écrit :
>> Pasi,
>>
>> Where are these RPMs, how are they built, what exactly are the
>> differences vs the stock ones?
>>
>> Regards,
>> Lucian
>>
>> -- 
>> Sent from the Delta quadrant using Borg technology!
>>
>> Nux!
>> www.nux.ro
>>
>> ----- Original Message -----
>>> From: "Pasi Kärkkäinen" <pasik at iki.fi>
>>> To: "Discussion about the virtualization on CentOS"
>>> <centos-virt at centos.org>
>>> Sent: Wednesday, 28 October, 2015 08:36:18
>>> Subject: Re: [CentOS-virt] Libvirt enhancement requests
>>> On Tue, Oct 27, 2015 at 05:19:16PM +0000, Nux! wrote:
>>>> To clarify my own request:
>>>>
>>>> RBD (for CEPH) support is available in the version bundled in RHEL
>>>> 7.2 Beta, so
>>>> we'll have it in CentOS 7.2 (or whatever will be the identifying
>>>> number).
>>>>
>>>> The hooks seems just like a matter of creating files in the correct
>>>> location.
>>>>
>>>> ..So, all is good in the world once again.
>>>>
>>> Except the VirtSIG provides a different version/build of libvirt
>>> rpms, so we
>>> still need to enable RBD/Ceph support separately in VirtSIG provided
>>> version..
>>>
>>>
>>> -- Pasi
>>>
>>>> Regards,
>>>> Lucian
>>>>
>>>> -- 
>>>> Sent from the Delta quadrant using Borg technology!
>>>>
>>>> Nux!
>>>> www.nux.ro
>>>>
>>>> ----- Original Message -----
>>>>> From: "Nux!" <nux at li.nux.ro>
>>>>> To: "Discussion about the virtualization on CentOS"
>>>>> <centos-virt at centos.org>
>>>>> Sent: Tuesday, 27 October, 2015 15:22:27
>>>>> Subject: Re: [CentOS-virt] Libvirt enhancement requests
>>>>> So... how exactly do we proceed?
>>>>>
>>>>> Anyone from the Virt SIG, please stand up?
>>>>>
>>>>> -- 
>>>>> Sent from the Delta quadrant using Borg technology!
>>>>>
>>>>> Nux!
>>>>> www.nux.ro
>>>>>
>>>>> ----- Original Message -----
>>>>>> From: "Pasi Kärkkäinen" <pasik at iki.fi>
>>>>>> To: "Discussion about the virtualization on CentOS"
>>>>>> <centos-virt at centos.org>
>>>>>> Sent: Sunday, 25 October, 2015 11:02:22
>>>>>> Subject: Re: [CentOS-virt] Libvirt enhancement requests
>>>>>> On Wed, Oct 21, 2015 at 05:44:20PM +0100, Nux! wrote:
>>>>>>> Hi folks,
>>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>>> I know you're rebuilding livbirt for the SIG. Would it be
>>>>>>> possible to enable RBD
>>>>>>> support in it?
>>>>>>>
>>>>>> Yes, we should definitely enable RBD / Ceph support in libvirt!
>>>>>>
>>>>>>
>>>>>>
>>>>>>> I know quite a few cases (in the Cloudstack community) that
>>>>>>> switched to Ubuntu
>>>>>>> particularly because CEPH support was missing.
>>>>>>> The recommendation is to rebuild the rpms, but this is not a
>>>>>>> viable thing for
>>>>>>> everyone. E.g.
>>>>>>> http://blog.widodh.nl/2015/04/rebuilding-libvirt-under-centos-7-1-with-rbd-storage-pool-support/
>>>>>>>
>>>>>>>
>>>>>>> Another thing that I noticed on the CentOS ml recently is an
>>>>>>> alleged lack of
>>>>>>> hooks, https://www.libvirt.org/hooks.html
>>>>>>>
>>>>>>> And last but not least, where could I find the libvirt (s)rpms
>>>>>>> that the SIG
>>>>>>> produces?
>>>>>>>
>>>>>>> Lucian
>>>>>>>
>>>>>>
>>>>>> -- Pasi


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