Does cluster upgrade wait for heal before proceeding to next host?
by Jayme
I've yet to have cluster upgrade finish updating my three host HCI
cluster. The most recent try was today moving from oVirt 4.3.3 to
4.3.5.5. The first host updates normally, but when it moves on to the
second host it fails to put it in maintenance and the cluster upgrade
stops.
I suspect this is due to that fact that after my hosts are updated it takes
10 minutes or more for all volumes to sync/heal. I have 2Tb SSDs.
Does the cluster upgrade process take heal time in to account before
attempting to place the next host in maintenance to upgrade it? Or is there
something else that may be at fault here, or perhaps a reason why the heal
process takes 10 minutes after reboot to complete?
5 years, 4 months
CentOS 6 in oVirt
by Dominik Holler
Hello,
are the official CentOS 6 cloud images known to work in oVirt?
I tried, but they seem not to work in oVirt [1], but on plain libvirt.
Are there any pitfalls known during using them in oVirt?
Thanks
Dominik
[1]
https://gerrit.ovirt.org/#/c/101117/
5 years, 4 months
How do I make delta clones ? OVM (aka Xen) vs Ovirt
by Tim Tuck
Hi all,
I'm new to Ovirt coming from a OVM ( aka Xen ) environment and I'm
trying to work out how to do similar things.
In my OVM environment I have VMs that are 100GB in size. These VMs are
templates that are used for running customer workshops so we create and
destroy them quite often.
In OVM I can clone 10 x 100GB VM's in about 1 minute, the cloning
process just creates a "delta" VM rather than copying the entire 100GB.
Those VM's can then be run and the on-disk size of the delta VM grows as
it runs and deviates from the master.
The same goes for templates, creating a 100GB VM from a template takes
only a few seconds. Creating a template from a VM only takes a few seconds.
My problem is that I cant seem to do any of this using Ovirt.
it appears that there is no way to tell the cloning process " I want 10"
like I can in OVM - am I missing something here?
In my tests I find that even if a "snapshot" is made, the entire VM is
copied rather than creating a delta.
Creating a VM from a template is no different in that it copies the
entire VM.
So...
Is it possible for Ovirt to create multiple clones on request ?
Can Ovirt do "delta" copies rather than copy the entire VM ?
If Ovirt can do these things, how do I set it up to to do that ?
Any help appreciated.
thanks
Tim
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5 years, 4 months
Virt-Viewer issue
by Lozada, Agustin T
Im building my first VM in ovirt with gluster and Im getting this issue when I'm opening a console session using virt-viewer. Does anyone has encountered this issue?
[cid:image001.png@01D56A15.FECFDAF0]
5 years, 4 months
Re: VMs inaccessible from Ubuntu/Debian-based OS
by Strahil
Hi, I have just tested ovirt VNC console (.vv file) with remote-viewer and it works.
Ensure that you have acees to hosts' ports 5900-5999 , as this is the VNC port.
Otherwise you can configure noVNC, but it requires port 6100 (based on memory).
Best Regards,
Strahil NikolovOn Aug 30, 2019 20:22, Souvalioti Maria <souvaliotimaria(a)mail.com> wrote:
>
> Hello Strahil and thank you for your reply.
>
> Virt-viewer is installed but mozilla is trying to open the console.vv by remote-viewer. In my understanding virt-viewer and remote-viewer are somewhat the same? (Remote-viewer usin virt-viewer) Should I access the VM's console from the ternimal? I have tried changing the VM's graphics type from spice to spice+vnc but still nothing. All I get is a blank window and a message stating that it cannot access the graphic server.
>
> Thanks again for your help.
>
> Maria Souvalioti
>
>
> Sent from BlueMail
> On 30 Aug 2019, at 7:48 pm, Strahil <hunter86_bg(a)yahoo.com> wrote:
>>
>> You need virt-viewer installed on your ubuntu or change console type to spice.
>>
>>
>> Best Regards,
>> Strahil NikolovOn Aug 30, 2019 15:35, souvaliotimaria(a)mail.com wrote:
>>>
>>>
>>> Hello all,
>>>
>>> I'm having an issue the past couple of days. I have tried anything I could find to solve this but with no success.
>>>
>>> I have a three node ovirt installation, glustered, hyperconverged and there i have a few VMs. The installation is for experimental reasons before we merge it in our DC. Anyway, though I can connect to the VMs' console from Fedora and Windows, I can't from Ubuntu.
>>>
>>> I have tried installing the browser-spice-plugin that's the corresponding package to spice-xpi and I got no results.
>>>
>>> I purged the browser-spice-plugin and then I installed the spice-client package, downloaded the spice-xpi from Fedora (FC19) (as instructed in https://www.ovirt.org/develop/infra/testing/spice.html), copied the libnsISpicec.so to /usr/lib/mozilla/plugins and made sure that xserver-xorg-video-qxl and spice-vdagent were installed and in their latest version, and still nothing.
>>>
>>> No matter what I have tried, I can't gain access to the console. No matter the browser I use, the message I get is "Unable to connect to the graphic server /tmp/mozilla_msouval0/console-1.vv".
>>>
>>> I have checked the logs and couldn't find anything useful, maybe I'm not checking the right logs?
>>> I run tcpdump on both the node the VM is being hosted and the Ubuntu machine I'm using and though on the UBuntu I capture a few packets (6) on both sides but on the Ubuntu side there were 15 packets received by the filter.
>>>
>>> Could you please guide towards the right way to solve this? Could this be an ntp problem?
>>>
>>> ovirt node version: 4.2.3.1
>>> Workstation: Jessie
>>>
>>> (I thought maybe Jessie was too old, and I run the same steps from Ubuntu 14.04 and Ubuntu 16.04, but the problem still remains)
>>>
>>> Thank you in advance for any help.
>>> Maria
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5 years, 4 months
Health Warning: Cinnamon toxic when adding EL7 nodes as oVirt hosts
by thomas＠hoberg.net
Of course a desktop on a virtualization host isn't really recommended, but actually, managing highly or even high-available supports services as VMs on a set of fat workstations under the control of oVirt can be rather useful...
And I prefer Cinnamon so much over the other desktops, it gets installed almost first after setup... Which turns out to be a mistake with oVirt.
Anyhow, to make a long journey of hair-pulling root-cause searching short:
Installing Cinnamon from EPEL has Otopi not find rpmUtils for one reason or another, even if I can see it on both sides, the engine and the target host.
Remove Cinnamon, it works again and you can re-install Cinnamon after.
I didn't test re-deploys, but I'd expect them to fail.
Don't know if this should be a bug report, since Cinnamon very unfortunately doesn't seem official just yet.
This is what you may expect to see in the engine logs:
2019-08-22 09:49:24,152+0200 DEBUG otopi.context context._executeMethod:145 method exception
Traceback (most recent call last):
File "/tmp/ovirt-BAJG2FYLMu/pythonlib/otopi/context.py", line 132, in _executeMethod
method['method']()
File "/tmp/ovirt-BAJG2FYLMu/otopi-plugins/ovirt-host-deploy/kdump/packages.py", line 216, in _customization
self._kexec_tools_version_supported()
File "/tmp/ovirt-BAJG2FYLMu/otopi-plugins/ovirt-host-deploy/kdump/packages.py", line 143, in _kexec_tools_version_supported
from rpmUtils.miscutils import compareEVR
ModuleNotFoundError: No module named 'rpmUtils'
2019-08-22 09:49:24,152+0200 ERROR otopi.context context._executeMethod:154 Failed to execute stage 'Environment customization': No module named 'rpmUtils'
5 years, 4 months
email
by Mustafa Taha
mustafa.taha(a)exalt.ps
5 years, 4 months
