Re: [ovirt-users] hot plug memory in el7

On 09 Dec 2015, at 18:07, Nathanaël Blanchet <blanchet(a)abes.fr&gt; wrote: Le 09/12/2015 18:00, Michal Skrivanek a écrit : On 09 Dec 2015, at 17:54, Nathanaël Blanchet <blanchet(a)abes.fr&gt; wrote: Le 09/12/2015 17:12, Michal Skrivanek a écrit : On 09 Dec 2015, at 14:54, Nathanaël Blanchet <blanchet(a)abes.fr&gt; wrote: Le 08/12/2015 11:43, Michal Skrivanek a écrit : On 08 Dec 2015, at 11:20, Yaniv Dary < <ydary@redhat.com&gt;ydary(a)redhat.com&gt; wrote: Yaniv Dary Technical Product Manager Red Hat Israel Ltd. 34 Jerusalem Road Building A, 4th floor Ra'anana, Israel 4350109 Tel : +972 (9) 7692306 8272306 Email: ydary(a)redhat.com IRC : ydary On Tue, Dec 8, 2015 at 2:03 AM, Nathanaël Blanchet < <blanchet(a)abes.fr&gt; blanchet(a)abes.fr&gt; wrote: > Hi all, > > I may miss something but according to > http://www.ovirt.org/Features/Hot_Plug_Memory, ovirt 3.6 was supposed to > support the hot plug memory feature. Nothing happens in reality when > increasing memory on a running vm with centos7. > I found this : > <http://lists.ovirt.orgpipermail/kimchi-devel/2015-June/010714.html> > http://lists.ovirt.orgpipermail/kimchi-devel/2015-June/010714.html, and > it seems that el7.1 can't support the feature because of its libvirt > version (1.2.8) while the required one is 1.2.14. > I didn't test, but I guess F22 supports it. > Is there any chance that el7.2 would support it with a backported > libvirtd? > It does support it, but only hot-plug not hot-unplug. > Or will a dedicated libvirt rhev package be released so as the downstream > to support it (like qemu-kvm for live snapshot some time ago)? > Documentation and limitation of the libvirt version for hot plug memory > are difficult to find in the ovirt wiki and more generally on the web. > Maybe the feature has been postponed to a 3.6.z release? > I works with fedora and you can use it currently with this feature. It works on centos too, qemu-kvm-ev 2.3 we distribute in ovirt repo Hello, no qemu-kvm-ev 2.3 is not enough: [root@fuji ~]# qemu-img --version qemu-img version 2.3.0 (qemu-kvm-ev-2.3.0-29.1.el7), Copyright (c) 2004-2008 Fabrice Bellard and vdsm-4.17.10.1-0.el7.centos.noarch I get this error message each time I try to hot add memory : Dec 9 11:18:00 fuji journal: unsupported configuration: unknown device type ‘memory' was the VM started in a 3.6 cluster? sure, on a full 3.6 cluster. I stopped/restarted them. I restarted vdsmd and libvirtd ok..and just for the sake of completeness - what is libvirt version exactly? If you’re running <1.2.14 then your initial comment make a lot of sense…. Yes, el7.2 has the right one (1.2.17) but even on 7.1 it should support it and if it doesn’t it’s our problem we should fix in ovirt (similarly as we solve qemu by shipping it ourselves) libvirt-daemon-1.2.8-16.el7_1.5.x86_64 I'm really surprised that such a waited feature has not been yet tested by the community users with el7, so that nobody has reported the issue yet.

Weird indeed. Well, RHEL 7.2 is out for more than a month and there is centos 7.2 beta and perhaps rc as well, it's due very soon Sandro, we should think about it - since we push qemu-kvm-ev we do not really enforce anyone to run on el7.2. We want to do that for various reasons as soon as possible. Maybe updating qemu-kvm-ev to require new 7.2 libvirt?

Or how/when did you create it? those vms have been created before uprading to 3.6, some of them from a blank template, other one based on a el7 template. Thanks, michal I tried to restart vdsmd but it is the same, even on other hosts. any help will be appreciated, thank you. > Thank you for your help > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users -- Nathanaël Blanchet Supervision réseau Pôle Infrastrutures Informatiques 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14blanchet(a)abes.fr -- Nathanaël Blanchet Supervision réseau Pôle Infrastrutures Informatiques 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14blanchet(a)abes.fr -- Nathanaël Blanchet Supervision réseau Pôle Infrastrutures Informatiques 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14blanchet(a)abes.fr