Hello
A simple question
Is virtualization (Xen) in CentOS stable for big developments ?
Somebody is using it for important servers ?
Would have to wait for an update?
Thanks in advance
roberto
On Thu, 2007-10-11 at 12:28 -0300, Roberto Pereyra wrote:
Is virtualization (Xen) in CentOS stable for big developments ?
Somebody is using it for important servers ?
We use it for some (web) server isolation. I currently do manual updates of Xen-related stuff, since there still is a bug that affects us (#1999). I think there were some other problems with the network scripts as well. But as far as I recall these problems will be fixed in 5.1.
Some machines also have problems with more than one vcpus in a domU (see the recent discussion on the centos-virt list).
5.1 will have some useful improvements over 5.0 (e.g. support for running i386 domUs with a x86_64 hypervisor/dom0).
-- Daniel
Daniel de Kok wrote on Thu, 11 Oct 2007 17:36:38 +0200:
Some machines also have problems with more than one vcpus in a domU (see the recent discussion on the centos-virt list).
centos-virt list? Can't find any such list here: http://www.centos.org/modules/tinycontent/index.php?id=16
Kai
On Fri, Oct 12, 2007 at 10:48:45AM +0200, Kai Schaetzl wrote:
centos-virt list? Can't find any such list here: http://www.centos.org/modules/tinycontent/index.php?id=16
it's here: http://lists.centos.org/mailman/listinfo/centos-virt
All the mailing lists are: http://lists.centos.org/mailman/listinfo
Tru
Tru Huynh wrote:
On Fri, Oct 12, 2007 at 10:48:45AM +0200, Kai Schaetzl wrote:
centos-virt list? Can't find any such list here: http://www.centos.org/modules/tinycontent/index.php?id=16
All the mailing lists are: http://lists.centos.org/mailman/listinfo
And I added it to the http://wiki.centos.org/GettingHelp/ListInfo which sometimes has a bit more information.
But we should get that stuff in sync ...
Cheers,
Ralph
Tru Huynh wrote on Fri, 12 Oct 2007 11:02:41 +0200:
All the mailing lists are: http://lists.centos.org/mailman/listinfo
Thank you both.
Kai
Thursday 11 October 2007 17:28:04 Roberto Pereyra napisał(a):
Hello
A simple question
Is virtualization (Xen) in CentOS stable for big developments ?
Somebody is using it for important servers ?
I'm using it on some important servers (isolation and easy of backup/recovery), but I'm not 100% happy with that. As mentioned before, there are still some unresolved bugs. Recently I did standard virt-install deployment using files as a storage, and performance is terrible (even for not very busy servers). If you need to use it, I would recommend not to use virt-install, and use separate lvolumes as storage backend. I also have impression that networking performance is degraded in comparison to vanilla Xen deployments.
Would have to wait for an update?
With my recent experiences I would wait for update or use vanilla Xen.
Regards,
I had some minor issues in production. First of all virt-manager the gui interface is very buggy version 0.2.6 I think it will go up to 0.4 in the next CentOS 5.1 release.
I've had one kernel freeze due to xen. I also have had to restart the xen services from /etc/init.d once
Thus my take its not rock stable yet. If its for heavy production use I would consider looking into XenSource commercial products with support and run CentOS under that.
Kind regards, Christian
On 10/12/07, Tomasz 'Zen' Napierala zen@allegro.pl wrote:
Thursday 11 October 2007 17:28:04 Roberto Pereyra napisał(a):
Hello
A simple question
Is virtualization (Xen) in CentOS stable for big developments ?
Somebody is using it for important servers ?
-
Christian Nygaard -
Daniel de Kok -
Kai Schaetzl -
Ralph Angenendt -
Roberto Pereyra -
Tomasz 'Zen' Napierala -
Tru Huynh