[Users] "Use Host"
by Maurice James
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Can someone explain what is the purpose of "Use Host" is when creating a ne=
w storage domain?
If the NFS host is remote and not part of the cluster=2C why do I have to c=
hoose a single cluster host to attach it to.
Does this mean that if that particular host gos offline (turned off) that o=
ther cluster member will no longer be able to access that nfs storage?
=
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<body class=3D'hmmessage'><div dir=3D'ltr'>Can someone explain what is the =
purpose of "Use Host" is when creating a new storage domain?<br><br>If the =
NFS host is remote and not part of the cluster=2C why do I have to choose a=
single cluster host to attach it to.<br>Does this mean that if that partic=
ular host gos offline (turned off) that other cluster member will no longer=
be able to access that nfs storage?<br> </div></body>
</html>=
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10 years, 9 months
[Users] [BUG] wrong template shown for vm
by Sven Kieske
Hi,
can anyone reproduce this bug?
https://bugzilla.redhat.com/show_bug.cgi?id=1068679
when you create a vm from an imported template (from export doomain)
the template info for the vm shows that it is based on the "blank" template.
I can reproduce this on ovirt 3.3.3-2.el6
it would be cool if someone could try to reproduce this on 3.4 and
on fedora.
Thanks
--
Mit freundlichen Grüßen / Regards
Sven Kieske
Systemadministrator
Mittwald CM Service GmbH & Co. KG
Königsberger Straße 6
32339 Espelkamp
T: +49-5772-293-100
F: +49-5772-293-333
https://www.mittwald.de
Geschäftsführer: Robert Meyer
St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen
Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen
10 years, 9 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: Thursday, February 13, 2014 11:16:27 AM
> Subject: Re: [Users] Memory usage
>
> On Thu, 2014-02-13 at 03:49 -0500, Doron Fediuck wrote:
> >
> > ----- 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.
>
>
> Yes, I know. So my question was if we can add another value for the
> usage in the vm in addition to the usage of the vm on the host.
>
We'll know once we understand the cause- ie is it a bug needs fixing or
should we indeed add another value
If you have a setup with this issue, try removing the balloon device
and see if it helps / changes.
>
> >
> > In order to make sure we keep track of it, please open a bug with all the
> > relevant info.
> >
>
> I'll open a bug for this.
>
Thanks
>
> > Thanks and keep reporting!
> > Doron
>
>
>
10 years, 9 months
Re: [Users] Network question
by Hans-Joachim
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Hello,
so far I'm using the nodes host IP@/Interface as well as for the ovirtmgmt network and host communication.
For performance/security reasons I'd like to move it into private network, dedicated to oVIRT
as requested... I'l give you more information about my 'problem' ;-)
actual situation:
===========
Host -----------\
----> eth0 10.1.2.3 no VLAN
ovirtmgmt ----/
VMs ----------------> eth1 bridge no IP@ no VLAN
requested situation
==============
Host ---------------> eth0 10.1.2.3 no VLAN
VMs ----------------> eth1 bridge no IP@ no VLAN
ovirtmgmt --------> eth2 192.168.1.2 no VLAN
So, my question is, do I have to declare th IP@ of the ovirtmgmt in the definion of Cluster/Hosts or can I stay with the host IP@?
Thank you for your help
Hans-Joachim
--========GMXBoundary196811392365405703826
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<span style=3D'font-family:Verdana'><span style=3D'font-size:12px'><div><sp=
an style=3D"font-family: Verdana;"><span style=3D"font-size: 12px;">Hello,<=
/span></span><br /><br /><span style=3D"font-family:Verdana"><span style=3D=
"font-size:12px">so far I'm using the nodes host IP@/Interface as well as f=
or the ovirtmgmt network and host communication.<br />For performance/secur=
ity reasons I'd like to move it into private network, dedicated to oVIRT</s=
pan></span><br /><br /><span style=3D"font-family: Verdana;"><span style=3D=
"font-size: 12px;">as requested... I'l give you more information about my '=
problem' ;-)</span></span><br /><br /><span style=3D"font-family: Verdana;"=
><span style=3D"font-size: 12px;">actual situation:<br />=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D<br />Host -----------\<br /> &=
nbsp; &nbs=
p; ----> eth0 10.1.2.3 no VLAN<br />ovirtm=
gmt ----/</span></span><br /><br /><span style=3D"font-family:Verdana"><spa=
n style=3D"font-size:12px">VMs ----------------> eth1 bridge no IP@ no V=
LAN</span></span><br /><br /><br /><span style=3D"font-family: Verdana;"><s=
pan style=3D"font-size: 12px;">requested situation<br />=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D<br />Host ---------------> eth0 10.1.2.3 no VLA=
N</span></span><br /><br /><span style=3D"font-family:Verdana"><span style=
=3D"font-size:12px">VMs ----------------> eth1 bridge no IP@ no VLAN</sp=
an></span><br /><br /><span style=3D"font-family:Verdana"><span style=3D"fo=
nt-size:12px">ovirtmgmt --------> eth2 192.168.1.2 no VLAN<br /><br /><b=
r />So, my question is, do I have to declare th IP@ of the ovirtmgmt in the=
definion of Cluster/Hosts or can I stay with the host IP@?<br /><br />Than=
k you for your help<br /><br />Hans-Joachim<br /> </span></span></div>=
</span></span>
--========GMXBoundary196811392365405703826--
10 years, 9 months
[Users] Asking for advice on hosted engine
by Giorgio Bersano
Hello everybody,
I discovered oVirt a couple of months ago when I was looking for the
best way to manage our small infrastructure. I have read any document
I considered useful but I would like to receive advice from the many
experts that are on this list.
I think it worths an introduction (I hope doesn't get you bored).
I work in a small local government entity and I try to manage
effectively our limited resources.
We have many years of experience with Linux and especially with CentOS
which we have deployed on PC (i.e. for using as firewall in remote
locations) and moreover on servers.
We have been using Xen virtualization from the early days of CentOS 5
and we have built our positive experience on KVM too.
I have to say that libvirt in a small environment like ours is really
a nice tool.
So nothing to regret.
Trying to go a little further, as already said, I stumbled upon oVirt
and I've found the project intriguing.
At the moment we are thinking of deploying it on a small environment
of four very similar servers each having:
- a couple of Xeon E5504
- 6 x 1Gb ethernet interfaces
- 40 GB of RAM
two of them have 72 GB of disk (mirrored)
two of them have almost 500GB of useful RAID array
Moreover we have an HP iSCSI storage that should easily satisfy our
current storage requirement.
So, given our small server pool, the necessity of another host just to
run the supervisor seems a requirement too high.
Enter "hosted engine" and the picture takes brighter colors. Well, I'm
usually not the adventurous guy but after experimenting a little with
oVirt 3.4 I developed better confidence.
We would want to install the engine over the two hosts with smaller disks.
For what I know, installing hosted engine mandates NFS storage. But we
want this to be highly available too, and possibly to have it on the
very same hosts.
Here is my solution: make a gluster replicated volume across the two
hosts and take advantage of that NFS server.
Then I put 127.0.0.1 as the address of the NFS server in the
hosted-engine-setup so the host is always able to reach the storage
server (itself).
GlusterFS configuration is done outside of oVirt that, regarding
engine's storage, doesn't even know that it's a gluster thing.
Relax, we've finally reached the point where I'm asking advice :-)
Storage and virtualization experts, do you see in this configuration
any pitfall that I've overlooked given my inexperience in oVirt,
Gluster, NFS or clustered filesystems?
Do you think that not only it's feasable (I know it is, I made it and
it's working now) but it's also reliable and dependable and I'm not
risking my neck on this setup?
I've obviously made some test but I'm not at the confidence level of
saying that all is right in the way it is designed.
OK, I think I've already written too much, better I stop and humbly
wait for your opinion but I'm obviously here if any clarification by
my part is needed.
Thank you very much for reading until this point.
Best Regards,
Giorgio.
10 years, 9 months
[Users] moving an unplugged/offline disk on a running vm creates snapshots
by Ernest Beinrohr
This is a multi-part message in MIME format.
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Imho, when the disk is offline, it should be movable directly without
the need for snapshots.
this is on ovirt 3.3
btw: any chance of thin->preallocated procedure?
--
Ernest Beinrohr, AXON PRO
Ing <http://www.beinrohr.sk/ing.php>, RHCE
<http://www.beinrohr.sk/rhce.php>, RHCVA
<http://www.beinrohr.sk/rhce.php>, LPIC
<http://www.beinrohr.sk/lpic.php>, VCA <http://www.beinrohr.sk/vca.php>,
+421-2--6241-0360 <callto://+421-2--6241-0360>, +421-903--482-603
<callto://+421-903--482-603>
icq:28153343, gtalk: oernii(a)axonpro.sk, jabber:oernii@jabber.org
------------------------------------------------------------------------
For a successful technology, reality must take precedence over public
relations, for Nature cannot be fooled. Richard Feynman
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<head>
<meta http-equiv="content-type" content="text/html; charset=windows-1250">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Imho, when the disk is offline, it should be movable directly
without the need for snapshots.<br>
<br>
this is on ovirt 3.3<br>
<br>
btw: any chance of thin->preallocated procedure?<br>
<br>
<div class="moz-signature">-- <br>
<div id="oernii_footer" style="color: gray;">
<span style="font-family: Lucida Console, Luxi Mono, Courier,
monospace; font-size: 90%;">
Ernest Beinrohr, AXON PRO<br>
<a style="text-decoration: none; color: gray;"
href="http://www.beinrohr.sk/ing.php">Ing</a>, <a
style="text-decoration: none; color: gray;"
href="http://www.beinrohr.sk/rhce.php">RHCE</a>, <a
style="text-decoration: none; color: gray;"
href="http://www.beinrohr.sk/rhce.php">RHCVA</a>, <a
style="text-decoration: none; color: gray;"
href="http://www.beinrohr.sk/lpic.php">LPIC</a>, <a
style="text-decoration: none; color: gray;"
href="http://www.beinrohr.sk/vca.php">VCA</a>, <a
style="text-decoration: none; color: gray;"
href="callto://+421-2--6241-0360">+421-2--6241-0360</a>, <a
style="text-decoration: none; color: gray;"
href="callto://+421-903--482-603">+421-903--482-603</a><br>
icq:28153343, gtalk: <a class="moz-txt-link-abbreviated" href="mailto:oernii@axonpro.sk">oernii(a)axonpro.sk</a>,
<a class="moz-txt-link-abbreviated" href="mailto:jabber:oernii@jabber.org">jabber:oernii@jabber.org</a>
<br>
</span>
<hr style="height: 1px; width: 95%"> <span style="font-size:
70%;">
For a successful technology, reality must take precedence
over public relations, for Nature cannot be fooled. Richard
Feynman </span> </div>
</div>
<img
src="http://nojsstats.appspot.com/UA-44497096-1/email.beinrohr.sk"
moz-do-not-send="true" border="0" height="1" width="1">
</body>
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10 years, 9 months
[Users] engine-image-uploader
by Maurice James
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What does the following error mean?
There should only be one Name element in the OVF XML's Content section.
I ran the following command
engine-image-uploader -e SaturnExport -N Drupal2 upload
turnkey-drupal7-13.0-wheezy-amd64.tar.gz
------=_NextPart_000_001B_01CF25B0.BC04D9A0
Content-Type: text/html; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
<html xmlns:v=3D"urn:schemas-microsoft-com:vml" =
xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" =
xmlns=3D"http://www.w3.org/TR/REC-html40"><head><META =
HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii"><meta name=3DGenerator content=3D"Microsoft Word 15 =
(filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US =
link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal>What does the following error mean?<o:p></o:p></p><p =
class=3DMsoNormal>There should only be one Name element in the OVF XML's =
Content section.<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>I ran the =
following command<o:p></o:p></p><p =
class=3DMsoNormal>engine-image-uploader -e SaturnExport -N Drupal2 =
upload turnkey-drupal7-13.0-wheezy-amd64.tar.gz =
<o:p></o:p></p></div></body></html>
------=_NextPart_000_001B_01CF25B0.BC04D9A0--
10 years, 9 months
[Users] problems installing ovirt-engine beta3
by Jorick Astrego
Hi,
I noticed the known issue with shmmax has been removed from the test day
page. But I'm having the same error as before only know the workaround
doesn't work anymore:
10 years, 9 months
