[Users] Disk Images
by andreas.ewert＠cbc.de
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Hi,
If I remove a disk image from a Virtual Machine, then I can=92t edit the =
disk properties in the =84Disks=93 tab. (e.g. bootable flag)
It is only possible to change the flags on attached disks.
My test environments are engine versions 3.3.3 and 3.4 beta2
Best regards
Andreas
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10 years, 3 months
[Users] New oVirt Community Dashboard
by Brian Proffitt
With much pleasure, I would like to introduce a new tool for the oVirt community: a community dashboard from the team at Bitergia.
This dashboard, found at [1], should enable us to get better insights into the activity within our community, as well as what communication channels are performing the best and who is most active on any given day.
Thanks to the work of Bitergia and Dave Neary, this dashboard is now ready for community feedback. I would invite you to take a look and make comments on how the information is presented and what data is available. Currently, the data is updated once a day.
Two initial questions: would IRC data be useful? And, would an aggregate page of all of the "Top" lists be something to add, too?
Two known bugs: The links to the MySQL and JSON data files are not working at the moment.
We welcome your feedback!
Peace,
Brian
[1] http://www.ovirt.org/stats
--
Brian Proffitt - oVirt Community Manager
Open Source and Standards, Red Hat - http://community.redhat.com
Phone: +1 312 477 4320 / Cell: +1 574 383 9BKP
IRC: bkp
10 years, 3 months
[Users] Importation of a Ubuntu cloud image in oVirt
by martin.trudel＠cspq.gouv.qc.ca
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Hi,
Is it possible in oVirt to use a cloud ready image of Ubuntu in oVirt ?
Those images can be found in this website and are in qcow2 format.
http://cloud-images.ubuntu.com/precise/current/
I want to use this image to make a template from it that I can configure in=
oVirt.
Martin Trudel
________________________________
Ce message est confidentiel et est ? l'usage exclusif du destinataire ident=
ifi? ci-dessus. Toute autre personne est, par les pr?sentes, avis?e qu'il l=
ui est strictement interdit de le diffuser, de le distribuer, d'en d?voiler=
le contenu ou de le reproduire. Si vous avez re?u cette communication par =
erreur, veuillez en informer l'exp?diteur par courrier ?lectronique imm?dia=
tement et d?truire l'original de ce message ainsi que toute copie.
________________________________
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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"=
>
<style>
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@font-face
{font-family:"Tms Rmn"}
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{font-family:"Tms Rmn"}
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{font-family:Cambria}
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{font-family:Calibri}
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif"}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline}
span.EmailStyle17
{font-family:"Calibri","sans-serif";
color:windowtext}
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{}
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{margin:72.0pt 90.0pt 72.0pt 90.0pt}
div.WordSection1
{}
-->
</style>
</head>
<body lang=3D"FR-CA" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Hi,</p>
<p class=3D"MsoNormal"> </p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Is it possible in oVirt to use =
a cloud ready image of Ubuntu in oVirt ?</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"> </span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Those images can be found in th=
is website and are in qcow2 format.</span></p>
<p class=3D"MsoNormal"><a href=3D"http://cloud-images.ubuntu.com/precise/cu=
rrent/">http://cloud-images.ubuntu.com/precise/current/</a></p>
<p class=3D"MsoNormal"> </p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I want to use this image to mak=
e a template from it that I can configure in oVirt.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"> </span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><b><span style=3D"font=
-size:10.0pt; font-family:"Cambria","serif"; color:blac=
k">Martin Trudel</span></b></p>
<p class=3D"MsoNormal"> </p>
</div>
<hr>
Ce message est confidentiel et est à l'usage exclusif du destinatair=
e identifié ci-dessus. Toute autre personne est, par les prés=
entes, avisée qu'il lui est strictement interdit de le diffuser, de =
le distribuer, d'en dévoiler le contenu ou de le reproduire.
Si vous avez reçu cette communication par erreur, veuillez en infor=
mer l'expéditeur par courrier électronique immédiateme=
nt et détruire l'original de ce message ainsi que toute copie.
<hr>
</body>
</html>
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10 years, 3 months
Re: [Users] Memory usage
by Koen Vanoppen
Thanks for the quick respons, but there is no memcached running on that VM.
Kind regards
2014-02-12 15:06 GMT+01:00 René Koch <rkoch(a)linuxland.at>:
> On Wed, 2014-02-12 at 14:55 +0100, Koen Vanoppen wrote:
> > Dear all,
> >
> >
> > When we monitor one of our machines, we noticed that there was one vm
> > that was constantly giving a error of memory usage. But when we took a
> > look at it, there is actually nothing wrong with it. Now we looked
> > furhter then that. We looked at the API of the machine and noticed
> > something very strange:
> >
> > <statistic
> >
> href="/api/vms/3b9aa245-75ff-42e8-b921-1c9ce61826bf/statistics/b7499508-c1c3-32f0-8174-c1783e57bb08"
> id="b7499508-c1c3-32f0-8174-c1783e57bb08"><name>memory.used</name><description>Memory
> used (agent)</description><values
> type="INTEGER"><value><datum>-944892806</datum></value></values><type>GAUGE</type><unit>BYTES</unit>
> >
> >
> > It's a negative...
>
>
> Do you have memcached running in this vm?
>
> I heard about this issue with memcached, but never tested memcached in
> my oVirt environment. You get the real usage value with
> memory.used = memory.installed + memory.used
>
>
> Regards,
> René
>
> >
> >
> > What could be the problem?
> >
> >
> > Kind regards,
> >
> > koen
> >
> > _______________________________________________
> > Users mailing list
> > Users(a)ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
>
>
>
10 years, 3 months
Re: [Users] Memory usage
by Doron Fediuck
----- Original Message -----
> From: "René Koch" <rkoch(a)linuxland.at>
> To: "Doron Fediuck" <dfediuck(a)redhat.com>
> Cc: "Koen Vanoppen" <vanoppen.koen(a)gmail.com>, users(a)ovirt.org, "Martin Sivak" <msivak(a)redhat.com>
> Sent: Wednesday, February 12, 2014 7:31:47 PM
> Subject: Re: [Users] Memory usage
>
> On Wed, 2014-02-12 at 11:22 -0500, Doron Fediuck wrote:
> >
> > ----- Original Message -----
> > > From: "René Koch" <rkoch(a)linuxland.at>
> > > To: "Koen Vanoppen" <vanoppen.koen(a)gmail.com>
> > > Cc: users(a)ovirt.org
> > > Sent: Wednesday, February 12, 2014 4:18:37 PM
> > > Subject: Re: [Users] Memory usage
> > >
> > > On Wed, 2014-02-12 at 15:14 +0100, Koen Vanoppen wrote:
> > > > In The GUI, it says it's using 25% of the memory.
> > >
> > >
> > > I guess it's the real value, right?
> > > The same happened for the memcached vm, someone reported to me -
> > > negative value in REST-API, but correct graph in oVirt webadmin GUI.
> > >
> > > I fear I have no idea how this can happen - so maybe someone else can
> > > help you troubleshoot this issue.
> > > >
> > > >
> > > >
> > > > 2014-02-12 15:10 GMT+01:00 Koen Vanoppen <vanoppen.koen(a)gmail.com>:
> > > > Thanks for the quick respons, but there is no memcached
> > > > running on that VM.
> > > >
> > > >
> > > > Kind regards
> > > >
> > > >
> > > >
> > > > 2014-02-12 15:06 GMT+01:00 René Koch <rkoch(a)linuxland.at>:
> > > >
> > > > On Wed, 2014-02-12 at 14:55 +0100, Koen Vanoppen
> > > > wrote:
> > > > > Dear all,
> > > > >
> > > > >
> > > > > When we monitor one of our machines, we noticed that
> > > > there was one vm
> > > > > that was constantly giving a error of memory usage.
> > > > But when we took a
> > > > > look at it, there is actually nothing wrong with it.
> > > > Now we looked
> > > > > furhter then that. We looked at the API of the
> > > > machine and noticed
> > > > > something very strange:
> > > > >
> > > > > <statistic
> > > > >
> > > > href="/api/vms/3b9aa245-75ff-42e8-b921-1c9ce61826bf/statistics/b7499508-c1c3-32f0-8174-c1783e57bb08"
> > > > id="b7499508-c1c3-32f0-8174-c1783e57bb08"><name>memory.used</name><description>Memory
> > > > used (agent)</description><values
> > > > type="INTEGER"><value><datum>-944892806</datum></value></values><type>GAUGE</type><unit>BYTES</unit>
> > > > >
> > > > >
> > > > > It's a negative...
> > > >
> > > >
> > > >
> > > > Do you have memcached running in this vm?
> > > >
> > > > I heard about this issue with memcached, but never
> > > > tested memcached in
> > > > my oVirt environment. You get the real usage value
> > > > with
> > > > memory.used = memory.installed + memory.used
> > > >
> > > >
> > > > Regards,
> > > > René
> > > >
> > > > >
> > > > >
> > > > > What could be the problem?
> > > > >
> > > > >
> > > > > Kind regards,
> > > > >
> > > > > koen
> > > > >
> > > >
> >
> > Guys,
> > these values are usually a result of overcommitment mechanism usage.
> > For example, if KSM is effective, it will free a lot of memory pages,
> > and total-free-committed becomes negative.
>
>
> Thanks a lot for the information.
>
>
> >
> > This was reported in https://bugzilla.redhat.com/show_bug.cgi?id=977758
> > and the engine is using memFree reported by vdsm, which is more accurate.
> >
> > The API reports the old version due to backwards compatibility.
>
>
> I just had a look at the bugzilla report and the RHEV documentation
> which says "Current memory in bytes used by the virtual machine.".
> So this means, the reported values are totally useless for monitoring
> memory usage of a virtual machine if KSM is active. I would expect to
> get the memory usage of a virtual machine and not how much memory is
> consumed on the hypervisor (this is pretty useless information for me).
>
> Is it planned to report the memory usage in a virtual machine in the API
> as well?
>
>
> Regards,
> René
>
>
René,
started digging into this, but it may take some time.
Note that there are 2 memory usage reports; one for the host,
and another for each VM.
My response is related to the host, while the original question was
for the VM. I still think the root cause is the same (ie- related to
overcommitment; for example the VM may have a balloon inflated), but
would like to properly check and fix if needed.
In order to make sure we keep track of it, please open a bug with all the
relevant info.
Thanks and keep reporting!
Doron
10 years, 3 months
[Users] taking advantage of extra disk space on nodes
by Robert Story
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So I've got a handful of oVirt nodes now, and most of them have over 100G of
unallocated disk space. I'm trying to figure out how to best take advantage
of that space. I see two possibilities: storage for oVirt, or
backup/archive storage.
I'm currently using a single NFS server for VM/iso/export storage (oVirt
3.3.x on CentOS, if it matters) and don't need to scale to hundreds of
nodes (probably 10-20, max). Is current gluster support stable enough for
production? What are the pros/cons of gluster vs NFS? I like the idea of
not having a single point of failure but worry about performance.
The other option is to stick with my NFS server and use the extra storage
for archive/backup space. Here I'm looking for reliability (i.e. losing a
server won't cause data loss) over performance. Are there pros/cons to
gluster vs ceph? Will either/both peacefully co-exist with an ovirt node?
All suggestions welcomed. Thanks!
Robert
--
Senior Software Engineer @ Parsons
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10 years, 3 months
[Users] test day help -- console
by Greg Sheremeta
I'm having a tough time getting a VM console working via VNC. I set a VM to use VNC, and I installed virt-viewer.
1. When I try to open a .vv file with virt-viewer, I get an error "Cannot find guest domain /var/tmp/console.vv"
2. Using a VNC client to connect to the host with the password in the .vv file just immediately disconnects it -- no error message.
3. noVNC just gives me an empty popup with a gray background.
Any ideas?
Greg Sheremeta
Red Hat, Inc.
Sr. Software Engineer, RHEV
Cell: 919-807-1086
gshereme(a)redhat.com
10 years, 3 months
[Users] Dedicated Bonding interface for Gluster
by ml ml
Hello List,
i would like to use a dedicated Bonding Interface for Gluster Replication
and Migration.
I was already able to add my Bonding Interfaces in my Hosts-Network Tab,
however i am failing to tell Gluster to use this interface. It only offers
me nodeX.local (which is my managment network).
More infos are collected here: http://oi58.tinypic.com/v6qaa1.jpg
Can someone tell me how to configure Gluster to use the dedicated bond
interface?
I already asked in the IRC Channel but nobody seems to know :-/
Thanks,
Mario
10 years, 3 months
