[ovirt-users] Re: Script for backing up VMs

[Christophe TREFOIS]

Hi,

We use this one but there are other ones around.

https://github.com/wefixit-AT/oVirtBackup

Most common seems to be people taking a snapshot, mounting it, and then dd / 
rsync the content away instead of whole VM.

Cheers,

-Original Message-
From: m...@karloluiten.nl  
Sent: samedi 17 novembre 2018 18:03
To: users@ovirt.org
Subject: [ovirt-users] Script for backing up VMs

Hi All,

I love oVirt, have been running it for some weeks now. I have read the wiki 
page on backups, and have set up an engine backup.
The backing up of VMs is where it gets more tricky. There must be more people 
already doing this, but I just would like some script that takes my vm name as 
an argument, and saves a backup (snapshot) of the vm. 

If someone could help me, that would be awesome. If there is an even easier way 
to do it (copying files on the FS itself?), that could be even better.

I know this question has been asked multiple times over the last years, but I 
can not find an actual, working, documented way of doing this.

Thanks so much, and thanks for creating/maintaining/fixing/building oVirt!
Karlo
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[ovirt-users] Re: Possible to use Console via Mac web browser?

[Christophe TREFOIS]

I guess there are console options, where you can set HTML5 now.

Check on the small “arrow” next to the console icon.

From: Jayme 
Sent: jeudi 2 août 2018 01:02
To: users 
Subject: [ovirt-users] Possible to use Console via Mac web browser?

I recall in the past (on a bit older of an oVirt build) I was able to launch VM 
consoles from my web browser.  I believe it may have been using spice html5 at 
the time, is this still possible?  Currently launching console downloads the 
typical .vv file.

What is currently the best/easiest method to access VM consoles using MacOS?
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[ovirt-users] Re: Self hosted to bare metal engine

[Christophe TREFOIS]

Here is from self hosted to VM non oVirt.

Do you know it’s the similar process?

Thanks

Sent from my iPhone

> On 25 Jul 2018, at 19:10, Fabrice Bacchella  
> wrote:
> 
> I have done something similar once, from a non-ovirt VM to bare metal. I run 
> it as a disaster recovery, with an ovirt backup. Everything went fine. I 
> didn't change the hostname, to be sure ; I don't know if it provides any help.
> 
>> Le 25 juil. 2018 à 18:42, Christophe TREFOIS  a 
>> écrit :
>> 
>> Hi,
>> 
>> What would be the process to go from self hosted engine to bare metal engine?
>> 
>> (Actually it would move to a VM in a VMware cluster) 
>> 
>> All user guides I found are from bare metal to self hosted.
>> 
>> Thanks for any tips or pointers
>> Christophe 
>> 
> 


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[ovirt-users] Self hosted to bare metal engine

[Christophe TREFOIS]

Hi,

What would be the process to go from self hosted engine to bare metal engine?

(Actually it would move to a VM in a VMware cluster) 

All user guides I found are from bare metal to self hosted.

Thanks for any tips or pointers
Christophe 

Sent from my iPhone

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[ovirt-users] Re: remote-viewer Spice Problem on MacOS

[Christophe TREFOIS]

We have the same issue potentially.

In fact, for some VMs, we get even an error now (even though it works from 
Windows).

In the error log on the hypervisor, we get a “SSL error”. This is in libvirtd 
logs.

@Hendrik, do you have perhaps same error?

140085012483328:error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown 
protocol:s23_srvr.c:640:
(process:375537): Spice-WARNING **: reds-stream.c:469:reds_stream_ssl_accept: 
SSL_accept failed, error=1

I did post to this mailing list 2 weeks ago, but received 0 replies.

Thank you,
Christophe 

> On 18 Jun 2018, at 13:22, hpey...@plusline.net wrote:
> 
>> you need something like [1]. It was always the case with spice’s client on 
>> mac
>> If it is only occasionally used on mac, alternatively you can use SPICE+VNC 
>> and connect to
>> VNC on mac an SPICE on linux/windows
>> 
>> Thanks,
>> michal
>> 
>> [1] https://github.com/juhoffma/rhev-console-launcher
> 
> Hi Michal,
> 
> thanks for your quick reply, sadly the rhev-console-launcher will also depend 
> and open the remote-viewer that we currently have issues with. VNC is only a 
> very last resort especially since the virt-viewer has been working for us for 
> over 2 years now.
> 
> Thanks,
> Hendrik
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[ovirt-users] Issue with console since recently

[Christophe TREFOIS]

Hi,

We performed no updates on our infrastructure and since today, on some guests 
(not all), we see the following error in the libvirtd logs

140085012483328:error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown 
protocol:s23_srvr.c:640:
(process:375537): Spice-WARNING **: reds-stream.c:469:reds_stream_ssl_accept: 
SSL_accept failed, error=1

Other guests works fine.

We are trying from Mac with remote-viewer and we use 

OS Version:
RHEL - 7 - 4.1708.el7.centos
OS Description:
CentOS Linux 7 (Core)
Kernel Version:
3.10.0 - 693.el7.x86_64
KVM Version:
2.10.0 - 21.el7_5.3.1
LIBVIRT Version:
libvirt-3.9.0-14.el7_5.5
VDSM Version:
vdsm-4.19.45-1.el7.centos
SPICE Version:
0.14.0 - 2.el7_5.3
CEPH Version:
librbd1-0.94.5-2.el7
And latest virt-viewer.
Could anybody help us to the right direction?
Currently, we cannot access the console of those VMs and we have no idea why.
Thanks,Trefex

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[ovirt-users] Re: Storage IO

[Christophe TREFOIS]

Hi Thomas,

I am by no means expert, but here couple of thoughts.

The cache filling up could be raid controller cache filling up and not emptying 
fast enough.
To have valid results, you could use another tool than dd, or run dd multiple 
times after another.

I don’t think, network have anything to do here with disk load, it would rather 
create system load as writes get queued.

Raid 4 seems strange to run VMs. Any reason why you pick this? The way I 
understand is that although you have 3 disks for data, all parity bits from the 
3 disks write to the 4th disk. This seems to be create bottlenecks.
Or you use Raid 4 only for OS?

Also, what are the VMs doing? Are they doing a lot of IO inside? 50 VMs on 4 
disks seems a little much also if each VM do many IO. (If you use the 4TB SSD 
for storage)
Lastly, are the disk volumes thin provision or thick?

All this could help you figure out some more things I think.

Kind regards,
T

> On 4 Jun 2018, at 22:11, Thomas Fecke  wrote:
> 
> Hey Juan,
>  
> That would be perfect. Ill searching for weeks now and can´t find the 
> Bottleneck
>  
> The Storage is attached to an 10 gig switch
> Storage:
>  
> 1HE 19'' Chassis mit 4 hot-swap Einschüben
> 600W Platinum PSU
> Intel Xeon E5-2620 v4 CPU
> 16GB DDR4-2400 regECC RAM (2x8)
> 4x 1TB SATA3 SSD (Samsung Pro)
> LSI3108 Raidcontroller
> 2x Intel 10G-BaseT LAN
> 1x ded. KVM Port (IPMI2.0)
>  
>  
> The Storage is attached to an 10 gig Switch. Just our Hypervisors are 
> connected aswell to that switch. I don’t know the Switch Model, its rented 
> from our Hoster ( like the Hardware ).
>  
> The Data Domain is shared via NFS.
>  
> We are working a lot with Templates – so a single Template gets deployed like 
> 20 Times. Dunno if its important. The Guests running Win 10 and Win Server 
> 2016 – Guest tools are installed. 
>  
> “Iotop” show about 100 MB/Sec
>  
> “Io sta”t show Storage Timeouts
>  
> dd if=/dev/zero of=/root/testfile bs=1G count=1 oflag=sync
> 1+0 Datensätze ein
> 1+0 Datensätze aus
> 1073741824 Bytes (1,1 GB) kopiert, 10,7527 s, 99,9 MB/s
>  
> DD ist way to low. When I reboot the Server its up to 800-900 MB/s. It drops 
> slowly to under 100 in about 5 Minutes. Like a Cache that is filling up.
>  
> RAM and CPU are fine ( maximum 50% system load – average 30% ).
>  
> File system is XFS – Raid 4 is used
>  
>  
>  
> From: Juan Pablo  > 
> Sent: Montag, 4. Juni 2018 21:10
> To: Thomas Fecke mailto:thomas.fe...@eset.de>>
> Cc: users@ovirt.org 
> Subject: Re: [ovirt-users] Storage IO
>  
> Hi Thomas, so you are seeing high load on your storage and you are asking 
> 'why'? an answer with the facts you give would be: you are using your 
> storage, so, you have storage IO.
>  
> so, if you want to dive deeper:
> -which storage are you using, specs would be nice.
> -which host model are you using?
> -network specs? card model, etc. switch model, etc.
>  
> hows your setup made? iscsi? nfs? gluster?
>  
> based on the former, we might get a better idea and after this some tests 
> could be made if needed to find if there's a bottleneck or if the environment 
> is working as expected..
>  
> regards,  
>  
>  
> 2018-06-04 14:29 GMT-03:00 Thomas Fecke  >:
> Hey Guys,
>  
> sorry i need to ask again.
>  
> We got 2 Hypervisor with about 50 running VM´s and a single Storage with 10 
> Gig connection.
>  
>  
> Device: rrqm/s   wrqm/s r/s w/srkB/swkB/s avgrq-sz 
> avgqu-sz   await r_await w_await  svctm  %util
> sda   3,00   694,00 1627,00  947,00 103812,00 61208,00   128,22   
>   6,782,632,133,49   0,39  99,70
>  
> avg-cpu:  %user   %nice %system %iowait  %steal   %idle
>0,000,003,70   31,370,00   64,93
>  
> Device: rrqm/s   wrqm/s r/s w/srkB/swkB/s avgrq-sz 
> avgqu-sz   await r_await w_await  svctm  %util
> sda   1,00   805,00  836,00  997,00 43916,00 57900,00   111,09
>  6,003,271,874,44   0,54  99,30
>  
> avg-cpu:  %user   %nice %system %iowait  %steal   %idle
>0,000,003,54   29,960,00   66,50
>  
> Device: rrqm/s   wrqm/s r/s w/srkB/swkB/s avgrq-sz 
> avgqu-sz   await r_await w_await  svctm  %util
> sda   2,00   822,00 1160,00 1170,00 46700,00 52176,0084,87
>  5,682,441,573,30   0,43  99,50
>  
> avg-cpu:  %user   %nice %system %iowait  %steal   %idle
>0,000,005,05   31,460,00   63,50
>  
> Device: rrqm/s   wrqm/s r/s w/srkB/swkB/s avgrq-sz 
> avgqu-sz   await r_await w_await  svctm  %util
> sda   3,00  1248,00 2337,00 1502,00 134932,00 48536,0095,58   
>   6,591,721,532,01   0,26  99,30
>  
> avg-cpu:  %user   %nice %system %iowait  %steal   %idle
>0,000,003,95   31,790,00   64,26
>  
> Device: rrqm/s   

[ovirt-users] Re: ovirt4.1 repo error

[Christophe TREFOIS]

Well fair enough for people who want to install it.

But people who have it already installed will see their yum update check 
commands etc break, which means we can’t update to latest 4.1 anymore, and we 
get errors all over the place.

I think that if this is the case, the repo URLs should be set not with 7/ but 
with 7.minor.version/.

Cheers,

> On 10 May 2018, at 08:15, Yedidyah Bar David  wrote:
> 
> On Thu, May 10, 2018 at 5:30 AM, Fernando Fuentes  
> wrote:
>> I am trying to upgrade my ovirt cluster and came across a repo 404.
>> 
>> http://mirror.centos.org/centos/7/storage/x86_64/gluster-3.8/repodata/repomd.xml:
>>  [Errno 14] HTTP Error 404 - Not Found
>> Trying other mirror.
>> 
>> 
>> Any ideas how to fix it?
> 
> oVirt-4.1 is not supported anymore, so no-one tries hard to make sure it's
> still installable.
> 
> Above site currently has only 3.10, 3.12 and 4.0:
> 
> http://mirror.centos.org/centos/7/storage/x86_64/
> 
> No idea if a direct replacement can be:
> 
> https://buildlogs.centos.org/centos/7/storage/x86_64/gluster-3.8/
> 
> but you can try.
> 
> Adding Sandro and Sahina.
> 
> Best regards,
> -- 
> Didi
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[ovirt-users] Re: ovirt4.1 repo error

[Christophe TREFOIS]

I have the same issue, it seems CentOS 7.5 was release, and gluster-3.8 is not 
in 7/ anymore.

What can we do to fix this?

Thanks,
Christophe

> On 10 May 2018, at 04:30, Fernando Fuentes  wrote:
> 
> I am trying to upgrade my ovirt cluster and came across a repo 404.
> 
> http://mirror.centos.org/centos/7/storage/x86_64/gluster-3.8/repodata/repomd.xml:
>  [Errno 14] HTTP Error 404 - Not Found
> Trying other mirror.
> 
> 
> Any ideas how to fix it?
> TIA!
> 
> 
> 
> -- 
> Fernando Fuentes
> ffuen...@txweather.org
> http://www.txweather.org
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Re: [ovirt-users] Windows 10 floppy not found during setup

[Christophe TREFOIS]

VMs use a vNIC on ovirtmgmt logical network. There should be nothing to do with 
the engine itself.

It was working fine for us after we are able to load the drivers properly.
  

> On 3 Feb 2018, at 23:07, Vincent Royer <vinc...@epicenergy.ca> wrote:
> 
> Thanks I tried it and it did in fact work.  Just threw me off because all the 
> instructions say to load the floppy. 
> 
> My windows install got right up to the point where it was loading the NICs, 
> and then it all came crashing down.  I expected the VMs and the engine to be 
> able to share the same NIC, but I suppose it doesn't work that way.  More 
> reading...
> 
> Vincent Royer
> 778-825-1057
> 
> 
>  <http://www.epicenergy.ca/>
> SUSTAINABLE MOBILE ENERGY SOLUTIONS
> 
> 
> 
> 
> On Sat, Feb 3, 2018 at 9:58 AM, Christophe TREFOIS <christophe.tref...@uni.lu 
> <mailto:christophe.tref...@uni.lu>> wrote:
> We had to do the swapping CD trick for Windows 10 yes.
> 
> Regards,
> -- 
> 
> Dr Christophe Trefois, Dipl.-Ing.  
> Technical Specialist / Post-Doc
> 
> UNIVERSITÉ DU LUXEMBOURG
> 
> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
> Campus Belval | House of Biomedicine  
> 6, avenue du Swing 
> L-4367 Belvaux  
> T: +352 46 66 44 6124 <tel:+352%2046%2066%2044%206124> 
> F: +352 46 66 44 6949 <tel:+352%2046%2066%2044%206949>  
> http://www.uni.lu/lcsb <http://www.uni.lu/lcsb>
>  <https://www.facebook.com/trefex>   <https://twitter.com/Trefex>   
> <https://plus.google.com/+ChristopheTrefois/>   
> <https://www.linkedin.com/in/trefoischristophe>   <http://skype:Trefex?call>
> 
> 
> This message is confidential and may contain privileged information. 
> It is intended for the named recipient only. 
> If you receive it in error please notify me and permanently delete the 
> original message and any copies. 
> 
> 
>   
> 
>> On 3 Feb 2018, at 11:31, Vincent Royer <vinc...@epicenergy.ca 
>> <mailto:vinc...@epicenergy.ca>> wrote:
>> 
>> I am trying to install Windows 10 on Ovirt 4.2
>> 
>> I pushed the virtio-win iso and vfd files to my ISO domain.   I created the 
>> VM and loaded the CD rom with the windows install ISO and in the "run once" 
>> settings I chose the virtio-win selection as a floppy.  However when 
>> entering windows setup, there is no drive to install to, and no floppy shows 
>> up in the usual place to install the drivers. 
>> 
>> the installation did succeed when selecting "IDE" as the target disk instead 
>> of the virtio or virtio-SCSI options.
>> 
>> Is there any way to install the drivers after the fact and then change the 
>> disk mode from IDE to virtio?
>> 
>> Is the method on this page 
>> https://www.ovirt.org/documentation/how-to/virtual-machines/create-a-windows-7-virtual-machine/
>>  
>> <https://www.ovirt.org/documentation/how-to/virtual-machines/create-a-windows-7-virtual-machine/>
>>  
>> still relevant?  Looks like they suggest swapping the CD disk once the 
>> windows setup has begun. 
>> 
>> Thanks!
>> ___
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>> Users@ovirt.org <mailto:Users@ovirt.org>
>> http://lists.ovirt.org/mailman/listinfo/users 
>> <http://lists.ovirt.org/mailman/listinfo/users>
> 
> 



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Re: [ovirt-users] Windows 10 floppy not found during setup

[Christophe TREFOIS]

We had to do the swapping CD trick for Windows 10 yes.

Regards,
-- 

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb <http://www.uni.lu/lcsb>
 <https://www.facebook.com/trefex>   <https://twitter.com/Trefex>   
<https://plus.google.com/+ChristopheTrefois/>   
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This message is confidential and may contain privileged information. 
It is intended for the named recipient only. 
If you receive it in error please notify me and permanently delete the original 
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> On 3 Feb 2018, at 11:31, Vincent Royer <vinc...@epicenergy.ca> wrote:
> 
> I am trying to install Windows 10 on Ovirt 4.2
> 
> I pushed the virtio-win iso and vfd files to my ISO domain.   I created the 
> VM and loaded the CD rom with the windows install ISO and in the "run once" 
> settings I chose the virtio-win selection as a floppy.  However when entering 
> windows setup, there is no drive to install to, and no floppy shows up in the 
> usual place to install the drivers. 
> 
> the installation did succeed when selecting "IDE" as the target disk instead 
> of the virtio or virtio-SCSI options.
> 
> Is there any way to install the drivers after the fact and then change the 
> disk mode from IDE to virtio?
> 
> Is the method on this page 
> https://www.ovirt.org/documentation/how-to/virtual-machines/create-a-windows-7-virtual-machine/
>  
> <https://www.ovirt.org/documentation/how-to/virtual-machines/create-a-windows-7-virtual-machine/>
>  
> still relevant?  Looks like they suggest swapping the CD disk once the 
> windows setup has begun. 
> 
> Thanks!
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users



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Re: [ovirt-users] oVirt 4.2.0 is now generally available

[Christophe TREFOIS]

Hi,

Is it possible to include metrics store into an existing ELK stack?

Thanks,
-- 

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb <http://www.uni.lu/lcsb>
 <https://www.facebook.com/trefex>   <https://twitter.com/Trefex>   
<https://plus.google.com/+ChristopheTrefois/>   
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This message is confidential and may contain privileged information. 
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If you receive it in error please notify me and permanently delete the original 
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> On 20 Dec 2017, at 10:40, Sandro Bonazzola <sbona...@redhat.com> wrote:
> 
> The oVirt project is excited to announce the general availability of oVirt 
> 4.2.0, as of December 20, 2017.
> 
> This release unleashes an altogether more powerful and flexible open source 
> virtualization solution that encompasses over 1000 individual changes and a 
> wide range of enhancements across the engine, storage, network, user 
> interface, and analytics.
> 
> Key features include:
> 
> - A redesigned Administration Portal, with an improved user-interface
> - A new VM portal for non-admin users, for a more streamlined experience
> - High Performance virtual machine type, for easy optimization of high 
> performance workloads.
> - oVirt metrics store, a new monitoring solution providing complete 
> infrastructure visibility
> - Support for virtual machine connectivity via software-defined networks
> - oVirt now supports Nvidia vGPU
> - The ovirt-ansible-roles set of packages helps users with common 
> administration tasks
> - Virt-v2v now supports Debian/Ubuntu and EL and Windows-based virtual 
> machines
> 
> For more information about these and other features, check out the oVirt 
> 4.2.0 blog post <https://ovirt.org/blog/2017/12/ovirt-4.2.0-now-ga/>.
> 
> This release is available now on x86_64 architecture for:
> * Red Hat Enterprise Linux 7.4 or later
> * CentOS Linux (or similar) 7.4 or later
> 
> This release supports Hypervisor Hosts on x86_64 and ppc64le (with 4.1 
> cluster compatibility only) architectures for:
> * Red Hat Enterprise Linux 7.4 or later
> * CentOS Linux (or similar) 7.4 or later
> * oVirt Node 4.2 (available for x86_64 only)
> 
> See the release notes [3] for installation / upgrade instructions and a list 
> of new features and bugs fixed.
> 
> If you’re managing more than one oVirt instance, OpenShift Origin or RDO we 
> also recommend to try ManageIQ <http://manageiq.org/>.
> 
> 
> Notes:
> - oVirt Appliance is already available.
> - oVirt Node is already available [4]
> - oVirt Windows Guest Tools iso is already available [4]
> 
> Additional Resources:
> * Read more about the oVirt 4.2.0 release highlights: 
> http://www.ovirt.org/release/4.2.0/ <http://www.ovirt.org/release/4.2.0/>
> * Get more oVirt project updates on Twitter: https://twitter.com/ovirt 
> <https://twitter.com/ovirt>
> * Check out the latest project news on the oVirt blog: 
> http://www.ovirt.org/blog/ <http://www.ovirt.org/blog/>
> 
> 
> [1] https://www.ovirt.org/community/ <https://www.ovirt.org/community/>
> [2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt 
> <https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt>
> [3] http://www.ovirt.org/release/4.2.0/ 
> <http://www.ovirt.org/release/4.2.0/>[4] 
> http://resources.ovirt.org/pub/ovirt-4.2/iso/ 
> <http://resources.ovirt.org/pub/ovirt-4.2/iso/>
> 
> -- 
> SANDRO BONAZZOLA
> ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA ENG VIRTUALIZATION R
> Red Hat EMEA <https://www.redhat.com/>
>  <https://red.ht/sig> 
> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>
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Re: [ovirt-users] Cannot install ovirt guest agent- repo does not exists

[Christophe TREFOIS]

Hi,

Our puppet workflows are failing.

Could anybody please tell us what-s going on?

Thanks,

--

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
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On 6 Sep 2017, at 16:15, Yohan JAROSZ 
<yohan.jar...@uni.lu<mailto:yohan.jar...@uni.lu>> wrote:

Dear Vinzenz, dear list

It seems that the repo evilissimo is not here anymore: 
http://download.opensuse.org/repositories/home:/
So we can’t install overt agent as stated in the docs: 
https://www.ovirt.org/documentation/how-to/guest-agent/install-the-guest-agent-in-ubuntu/
(http://download.opensuse.org/repositories/home:/evilissimo:/ubuntu:/16.04/xUbuntu_16.04/)

best,
Yo.




Yohan Jarosz
Scientific Collaborator

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
7, avenue des Hauts-Fourneaux
L-4362 Esch-sur-Alzette
T +352 46 66 44 6669
F +352 46 66 44 3 6669


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Re: [ovirt-users] ovirt-hosted-engine state transition messages

[Christophe TREFOIS]

I have a similar pattern. But it usually works again for 1 week without 
restarting engine.



From: Darrell Budic [mailto:bu...@onholyground.com]
Sent: dimanche 23 juillet 2017 21:32
To: Christophe TREFOIS <christophe.tref...@uni.lu>
Cc: Jim Kusznir <j...@palousetech.com>; users <users@ovirt.org>
Subject: Re: [ovirt-users] ovirt-hosted-engine state transition messages



This happened to me again, started last night so it was almost a week from the 
last restart. System was not out of memory, a bit low, and it may have been 
churning buffers or java GC, I’m on vacation and didn’t dig into it very far. 
Restarted the engine and it’s happy. DWH was still working, but web interface 
was a bit slow before the restart. This was 4.1.3 now. Added some ram to the 
Hosted Engine, but looks like I need to restart it and will probably wait until 
I’m back for that.





   On Jul 18, 2017, at 9:22 AM, Darrell Budic 
<bu...@onholyground.com<mailto:bu...@onholyground.com>> wrote:



   I had some of this going on recently under 4.1.2, started with one or two 
warning messages, then a flood of them. Did the upgrade to 4.1.3 and haven’t 
seen it yet, but it’s only been a few days so far. A java process was consuming 
much CPU, and the DataWarehouse appears to not be collecting data (evidenced by 
a blank dashboard). My DWH has since recovered as well.



   I forgot to check, but suspect I was low/out of memory on my engine VM, it’s 
an old one with only 6G allocated currently. Watching for this to happen again, 
and will confirm RAM utilization and bump up appropriately if it looks like 
it’s starved for RAM.





  On Jul 18, 2017, at 5:45 AM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:



  I have the same as you on 4.1.0



  EngineBadHealth-EngineUp 1 minute later. Sometimes 20 times per day, 
mostly on weekends.



      Cheers,

  --

  Dr Christophe Trefois, Dipl.-Ing.
  Technical Specialist / Post-Doc

  UNIVERSITÉ DU LUXEMBOURG

  LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
  Campus Belval | House of Biomedicine
  6, avenue du Swing
  L-4367 Belvaux
  T: +352 46 66 44 6124
  F: +352 46 66 44 6949
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 On 17 Jul 2017, at 17:35, Jim Kusznir 
<j...@palousetech.com<mailto:j...@palousetech.com>> wrote:



 Ok, I've been ignoring this for a long time as the logs were so 
verbose and didn't show anything I could identify as usable debug info.  
Recently one of my ovirt hosts (currently NOT running the main engine, but a 
candidate) was cycling as much as 40 times a day between "EngineUpBadHealth and 
EngineUp".  Here's the log snippit.  I included some time before and after if 
that's helpful.  In this case, I got an email about bad health at 8:15 and a 
restore (engine up) at 8:16.  I see where the messages are sent, but I don't 
see any explanation as to why / what the problem is.



 BTW: 192.168.8.11 is this computer's physical IP; 192.168.8.12 is the 
computer currently running the engine.  Both are also hosting the gluster store 
(eg, I have 3 hosts, all are participating in the gluster replica 2+arbitrator).



 I'd appreciate it if someone could shed some light on why this keeps 
happening!



 --Jim

 



 MainThread::INFO::2017-07-17 
08:12:06,230::config::485::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_vm_conf)
 Reloading vm.conf from the shared storage domain

 MainThread::INFO::2017-07-17 
08:12:06,230::config::412::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(_get_vm_conf_content_from_ovf_store)
 Trying to get a fresher copy of vm configuration from the OVF_STORE

 MainThread::INFO::2017-07-17 
08:12:08,877::ovf_store::103::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan)
 Found OVF_STORE: imgUUID:e10c90a5-4d9c-4e18-b6f7-ae8f0cdf4f57, 
volUUID:a9754d40-eda1-44d7-ac92-76a228f9f1ac

 MainThread::INFO::2017-07-17 
08:12:09,432::ovf_store::103::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan)
 Found OVF_STORE: imgUUID:f22829ab-9fd5-415a-9a8f-809d3f7887d4, 
volUUID:9f4760ee-119c-412a-a1e8-49e73e6ba929

 MainThread::INFO::2017-07-17 
08:12:09,925::ovf_store::112::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF)
 Extracting Engine 

Re: [ovirt-users] ovirt-hosted-engine state transition messages

[Christophe TREFOIS]

I have the same as you on 4.1.0

EngineBadHealth-EngineUp 1 minute later. Sometimes 20 times per day, mostly on 
weekends.

Cheers,

--

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

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On 17 Jul 2017, at 17:35, Jim Kusznir 
<j...@palousetech.com<mailto:j...@palousetech.com>> wrote:

Ok, I've been ignoring this for a long time as the logs were so verbose and 
didn't show anything I could identify as usable debug info.  Recently one of my 
ovirt hosts (currently NOT running the main engine, but a candidate) was 
cycling as much as 40 times a day between "EngineUpBadHealth and EngineUp".  
Here's the log snippit.  I included some time before and after if that's 
helpful.  In this case, I got an email about bad health at 8:15 and a restore 
(engine up) at 8:16.  I see where the messages are sent, but I don't see any 
explanation as to why / what the problem is.

BTW: 192.168.8.11 is this computer's physical IP; 192.168.8.12 is the computer 
currently running the engine.  Both are also hosting the gluster store (eg, I 
have 3 hosts, all are participating in the gluster replica 2+arbitrator).

I'd appreciate it if someone could shed some light on why this keeps happening!

--Jim


MainThread::INFO::2017-07-17 
08:12:06,230::config::485::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_vm_conf)
 Reloading vm.conf from the shared storage domain
MainThread::INFO::2017-07-17 
08:12:06,230::config::412::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(_get_vm_conf_content_from_ovf_store)
 Trying to get a fresher copy of vm configuration from the OVF_STORE
MainThread::INFO::2017-07-17 
08:12:08,877::ovf_store::103::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan)
 Found OVF_STORE: imgUUID:e10c90a5-4d9c-4e18-b6f7-ae8f0cdf4f57, 
volUUID:a9754d40-eda1-44d7-ac92-76a228f9f1ac
MainThread::INFO::2017-07-17 
08:12:09,432::ovf_store::103::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan)
 Found OVF_STORE: imgUUID:f22829ab-9fd5-415a-9a8f-809d3f7887d4, 
volUUID:9f4760ee-119c-412a-a1e8-49e73e6ba929
MainThread::INFO::2017-07-17 
08:12:09,925::ovf_store::112::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF)
 Extracting Engine VM OVF from the OVF_STORE
MainThread::INFO::2017-07-17 
08:12:10,324::ovf_store::119::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF)
 OVF_STORE volume path: 
/rhev/data-center/mnt/glusterSD/192.168.8.11:_engine/c0acdefb-7d16-48ec-9d76-659b8fe33e2a/images/f22829ab-9fd5-415a-9a8f-809d3f7887d4/9f4760ee-119c-412a-a1e8-49e73e6ba929
MainThread::INFO::2017-07-17 
08:12:10,696::config::431::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(_get_vm_conf_content_from_ovf_store)
 Found an OVF for HE VM, trying to convert
MainThread::INFO::2017-07-17 
08:12:10,704::config::436::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(_get_vm_conf_content_from_ovf_store)
 Got vm.conf from OVF_STORE
MainThread::INFO::2017-07-17 
08:12:10,705::states::426::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(consume)
 Engine vm running on localhost
MainThread::INFO::2017-07-17 
08:12:10,714::hosted_engine::604::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_vdsm)
 Initializing VDSM
MainThread::INFO::2017-07-17 
08:12:14,426::hosted_engine::630::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images)
 Connecting the storage
MainThread::INFO::2017-07-17 
08:12:14,470::storage_server::219::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server)
 Connecting storage server
MainThread::INFO::2017-07-17 
08:12:19,648::storage_server::226::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server)
 Connecting storage server
MainThread::INFO::2017-07-17 
08:12:19,900::storage_server::233::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server)
 Refreshing the storage domain
MainThread::INFO::2017-07-17 
08:12:20,298::hosted_engine::657::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images)
 Preparing images
MainThread::INFO::2017-07-17 
08:12:20,298::image::126::ovirt_hosted_engine_ha

Re: [ovirt-users] VM in oVirt 4 sometimes does not have proper CPU guest count

[Christophe TREFOIS]

Hi all,

I still have this issue and would like to know what we can do to debug this or 
figure out why this is happening?

We are now in 4.1.0 on the engine and the host in question, and still face the 
same problem on some Ubuntu VMs.

Thanks a lot for any pointers,

Kind regards,
Christophe

> On 20 Feb 2017, at 18:47, Christophe TREFOIS <christophe.tref...@uni.lu> 
> wrote:
> 
> Dear all,
> 
> We upgraded today engine to 4.0.6 and a host to CentOS 7.3 and all packages 
> updated.
> 
> Most VMs start up with correct number of guest CPUs except 2 or 3 that only 
> spawn with 1 guest CPU count.
> We set for instance a CPU profile of 1:4:1 but only 1 vCPU is available to VM.
> 
> The VM itself is running Trusty, but other Trusty VM seem fine.
> 
> Do you have any idea what could be the issue and how to perhaps fix this?
> 
> Kind regards,
> Christophe
> -- 
> 
> Dr Christophe Trefois, Dipl.-Ing.  
> Technical Specialist / Post-Doc
> 
> UNIVERSITÉ DU LUXEMBOURG
> 
> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
> Campus Belval | House of Biomedicine  
> 6, avenue du Swing 
> L-4367 Belvaux  
> T: +352 46 66 44 6124 
> F: +352 46 66 44 6949  
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> 
> 
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[ovirt-users] Update of ovirt-guest-agent for Debian Jessie

[Christophe TREFOIS]

Hi,

Could you update ovirt-guest-agent as latest is 1.0.13 but on Debain mirror it 
is 1.0.10?

Thanks,
Christophe

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Re: [ovirt-users] Upgrade from 3.6 to 4.1

[Christophe TREFOIS]

> On 23 Mar 2017, at 20:09, Brett Holcomb  wrote:
> 
> I am currently running oVirt 3.6 on a physical server using hosted engine 
> environment.  I have one server since it's a lab setup.  The storage is on a 
> Synology 3615xs iSCSI LUN so that's where the vms are.  I plan to upgrade to 
> 4.1 and need to check to make sure I understand the procedure.  I've read the 
> oVirt 4.1 Release Notes and they leave some questions.
> 
> First they say I can simply install the 4.1 release repo update all the 
> ovirt-*-setup* and then run engine-setup.

I don’t know for sure, but I would first go to latest 4.0 and then to 4.1 as 
I’m not sure they test upgrades from 3.6 to 4.1 directly. 

> 
> 1. I assume this is on the engine VM running on the host physical box.

Yes, inside the VM. But first, follow the guide below and make sure engine is 
in global maintenance mode. 

> 
> 2.  What does engine-setup do.  Does it know what I have and simply update or 
> do I have to go through setup again.

You don’t have to setup from scratch. 

> 
> 3.  Then do I go to the host and update all the ovirt stuff?

Yes, first putting host in local maintenance mode and removing global 
maintenance mode from engine. 

> 
> However, they then say for oVirt Hosted Engine follow a link for upgrading 
> which takes me to a Not Found :( page but did have a link back to the release 
> notes which link to the Not Found which  So what do I need to know about 
> upgrading a hosted engine setup that there are no directions for.  Are there 
> some gotchas?  I thought that the release notes said I just had to upgrade 
> the engine and then the host.

@ovirt, can this be fixed ? It’s quite annoying indeed.

Meanwhile, I usually follow the linke from 4.0.0 release notes which is not 
404. 

https://www.ovirt.org/documentation/how-to/hosted-engine/#upgrade-hosted-engine 

> 
> Given that my VMs are on iSCSI what happens if things go bad and I have to 
> start from scratch.  Can I import the VMs created under 3.6 into 4.1 or do I 
> have to do something else like copy them somewhere for backup.

It might be good to shutdown the VMs and do an export if you have a storage 
domain for that. Just to be 100 % safe.
In any case, during the upgrade, since the host is in maintenance, all VMs have 
to be OFF.

> 
> Any other hints and tips are appreciated.

Don’t have iSCSI so can’t help much with that.
I’m just a regular user who failed many times :)

> 
> Thanks.
> 
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Re: [ovirt-users] [ANN] oVirt 4.1.1 First Release Candidate

[Christophe TREFOIS]

Good question.

But I can assure you that not everything is golden goose.

Sometimes there is legacy, lack of knowledge, and so on, and there are many use 
cases where a full test env is not a given.
It is desired yes, but currently not an option.

By the way, to quote some famous people, everyone has a test environment, only 
few of us are lucky enough to have prod env as well.

And based on the problems we encountered recently, which were upgrade related, 
it would have been difficult to have a 1:1 test env anyway, as this issue for 
sure would not have been caught.

Cheers,

> On 6 Mar 2017, at 13:28, Sven Kieske  wrote:
> 
> On 06/03/17 10:48, Andrea Ghelardi wrote:
>> A)  there could be no test environment to check the upgraded version 
>> behavior and
>> 
>> B)  the upgrade itself may require more than a bit of effort when there 
>> are dozen hosts and multiple clusters involved,
>> this does not really encourage to always push the datacenter to the latest 
>> version available, especially if the in-production version is not 
>> misbehaving.
>> 
>> Please note I'm just sharing our company view and not blaming anyone.
>> 
>> Cheers
>> Andrea
> 
> As a side note:
> 
> What kind of data center do you run, that lacks any test environment?
> 
> If you don't have a testbed, than you have far worse problems than the
> number of bugfixes and things which might (not) work in a new ovirt version.
> 
> -- 
> Mit freundlichen Grüßen / Regards
> 
> Sven Kieske
> 
> Systemadministrator
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Re: [ovirt-users] [ANN] oVirt 4.1.1 First Release Candidate

[Christophe TREFOIS]

Hi Sandro,

We upgraded now to 4.1.0, just have to upgrade now the hosts.

We don’t have test env, so we’re in prod.

If we encounter some bugs fixed in 4.1.1, how could get to 4.1.1 RC?

Thanks,

--

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
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On 6 Mar 2017, at 09:47, Sandro Bonazzola 
<sbona...@redhat.com<mailto:sbona...@redhat.com>> wrote:



On Mon, Mar 6, 2017 at 9:46 AM, Sandro Bonazzola 
<sbona...@redhat.com<mailto:sbona...@redhat.com>> wrote:


On Mon, Mar 6, 2017 at 12:18 AM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Hi,

Is 4.1.0 still recommneded an upgrade from 4.0.6 in production or should we 
wait for 4.1.1 to comee out?

100+ critical bugs fixed sounds good but doesnt really encourage upgrading to 
4.1.0

thoughts?

Note that between 4.0.6 and 4.1.0 there were ~1100 bugfix+enanchement fixed and 
in 4.1.1 there will be other ~400 bugfix+enhancements
Being the 4.1.1 release scheduled in ~1 week, I would wait for it.

Or you can upgrade right now to the release candidate and help us testing it :-)





Christophe

On 3 Mar 2017, at 14:48, Sandro Bonazzola 
<sbona...@redhat.com<mailto:sbona...@redhat.com>> wrote:


The oVirt Project is pleased to announce the availability of the First
Release Candidate of oVirt 4.1.1 for testing, as of March 3rd, 2017

This is pre-release software. Please take a look at our community page[1]
to know how to ask questions and interact with developers and users.
All issues or bugs should be reported via oVirt Bugzilla[2].
This pre-release should not to be used in production.

This update is the first release candidate of the first in a series of
stabilization updates to the 4.1 series.
4.1.1 brings 26 enhancements and more than 350 bugfixes,
including more than 130 high or urgent
severity fixes, on top of oVirt 4.1 series

This release is available now for:
* Fedora 24 (tech preview)
* Red Hat Enterprise Linux 7.3 or later
* CentOS Linux (or similar) 7.3 or later

This release supports Hypervisor Hosts running:
* Red Hat Enterprise Linux 7.3 or later
* CentOS Linux (or similar) 7.3 or later
* Fedora 24 (tech preview)

See the release notes draft [3] for installation / upgrade instructions and
a list of new features and bugs fixed.

Notes:
- oVirt Live has been already built [4]
- oVirt Node and Appliance has not been built for this release due to build 
issues we're still investigating.

Additional Resources:
* Read more about the oVirt 4.1.1 release 
highlights:http://www.ovirt.org/release/4.1.1/
* Get more oVirt Project updates on Twitter: https://twitter.com/ovirt
* Check out the latest project news on the oVirt blog:http://www.ovirt.org/blog/

[1] https://www.ovirt.org/community/
[2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt
[3] http://www.ovirt.org/release/4.1.1/
[4] http://resources.ovirt.org/pub/ovirt-4.1-pre/iso/



--
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See how it works at redhat.com<http://redhat.com/>



--
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See how it works at redhat.com<http://redhat.com/>

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Re: [ovirt-users] [ANN] oVirt 4.1.1 First Release Candidate

[Christophe TREFOIS]

Hi,

Is 4.1.0 still recommneded an upgrade from 4.0.6 in production or should we 
wait for 4.1.1 to comee out?

100+ critical bugs fixed sounds good but doesnt really encourage upgrading to 
4.1.0

thoughts?

Christophe

On 3 Mar 2017, at 14:48, Sandro Bonazzola 
> wrote:


The oVirt Project is pleased to announce the availability of the First
Release Candidate of oVirt 4.1.1 for testing, as of March 3rd, 2017

This is pre-release software. Please take a look at our community page[1]
to know how to ask questions and interact with developers and users.
All issues or bugs should be reported via oVirt Bugzilla[2].
This pre-release should not to be used in production.

This update is the first release candidate of the first in a series of
stabilization updates to the 4.1 series.
4.1.1 brings 26 enhancements and more than 350 bugfixes,
including more than 130 high or urgent
severity fixes, on top of oVirt 4.1 series

This release is available now for:
* Fedora 24 (tech preview)
* Red Hat Enterprise Linux 7.3 or later
* CentOS Linux (or similar) 7.3 or later

This release supports Hypervisor Hosts running:
* Red Hat Enterprise Linux 7.3 or later
* CentOS Linux (or similar) 7.3 or later
* Fedora 24 (tech preview)

See the release notes draft [3] for installation / upgrade instructions and
a list of new features and bugs fixed.

Notes:
- oVirt Live has been already built [4]
- oVirt Node and Appliance has not been built for this release due to build 
issues we're still investigating.

Additional Resources:
* Read more about the oVirt 4.1.1 release 
highlights:http://www.ovirt.org/release/4.1.1/
* Get more oVirt Project updates on Twitter: https://twitter.com/ovirt
* Check out the latest project news on the oVirt blog:http://www.ovirt.org/blog/

[1] https://www.ovirt.org/community/
[2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt
[3] http://www.ovirt.org/release/4.1.1/
[4] http://resources.ovirt.org/pub/ovirt-4.1-pre/iso/



--
Sandro Bonazzola
Better technology. Faster innovation. Powered by community collaboration.
See how it works at redhat.com
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[ovirt-users] ETL service sampling has encountered an error

[Christophe TREFOIS]

Dear all,

Since upgrading to 4.0.6, we see this error in the engine events tab and were 
wondering how to fix it.

ovirt-engine-dwh.log

—
2017-02-20 
22:01:00|zPHx4s|6nXgTp|ygadfe|OVIRT_ENGINE_DWH|SampleTimeKeepingJob|Default|5|tWarn|tWarn_1|Can
 not sample data, oVirt Engine is not updating the statistics. Please check 
your oVirt Engine status.|9704
—

And in engine log the only error I see (repeated) since yesterday is

65366:2017-02-21 22:13:34,357 ERROR 
[org.ovirt.engine.core.vdsbroker.vdsbroker.VdsBrokerObjectsBuilder] 
(DefaultQuartzScheduler10) [2dc75859] null architecture type, replacing with 
x86_64, %s

Any advice on where to start is welcome.

Kind regards,
Christophe
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[ovirt-users] Unmanaged VMs in Task List since overt 4

[Christophe TREFOIS]

Dear all,

Since our upgrade to oVirt 4, we notice the following task being executed every 
15-20 seconds.

"Adding unmanaged VMs running on Host bio2_engine to Cluster Default”. The 
status is successful, but I’m not sure what it is or which VMs engine is 
talking about.

Any ideas?

Thanks,
Christophe
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[ovirt-users] VM in oVirt 4 sometimes does not have proper CPU guest count

[Christophe TREFOIS]

Dear all,

We upgraded today engine to 4.0.6 and a host to CentOS 7.3 and all packages 
updated.

Most VMs start up with correct number of guest CPUs except 2 or 3 that only 
spawn with 1 guest CPU count.
We set for instance a CPU profile of 1:4:1 but only 1 vCPU is available to VM.

The VM itself is running Trusty, but other Trusty VM seem fine.

Do you have any idea what could be the issue and how to perhaps fix this?

Kind regards,
Christophe

--

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

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Re: [ovirt-users] [HEADS UP] CentOS 7.3 is rolling out, need qemu-kvm-ev 2.6

[Christophe TREFOIS]

Hi,

 

The package starts with q, yet you pasted only ovirt and vdsm from yum update.

 

Can you paste complete output of yum update?

 

Also, the qemu package should be there when you go to 7.3

 

http://mirror.centos.org/centos-7/7.3.1611/virt/x86_64/kvm-common/

 

From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of 
Gianluca Cecchi
Sent: jeudi 22 décembre 2016 17:29
To: Sandro Bonazzola 
Cc: users 
Subject: Re: [ovirt-users] [HEADS UP] CentOS 7.3 is rolling out, need 
qemu-kvm-ev 2.6

 

On Mon, Dec 12, 2016 at 1:49 PM, Sandro Bonazzola  > wrote:

Hi,

as you probably noticed, CentOS 7.3 is rolling out right now and will be 
announced pretty soon.

Please note that due to new libvirt shipped within CentOS 7.3, it is required 
to update qemu-kvm-ev to 2.6 at the same time.

 

If you're using CentOS Virt SIG rpms / repos for oVirt this should happen 
automatically. 

If you're using only ovirt repositories be sure to have qemu-kvm-ev 2.6 if you 
update to CentOS 7.3.


 

In terms of ovirt repositories, qemu-kvm-ev 2.6 is available right now in 
ovirt-master-snapshot-static, ovirt-4.0-snapshot-static, and ovirt-4.0-pre 
(contains 4.0.6 RC4 rpms going to be announced in a few minutes.)

 

Thanks,

-- 

Sandro Bonazzola
Better technology. Faster innovation. Powered by community collaboration.
See how it works at redhat.com  

 

 

Hello,

I start again from the initial post.

There is still something that I miss on this.

I currently have a host in oVirt 4.0.5 and in CentOS 7.2 (last update run on 
mid November)

What are the steps I should run to keep current my oVirt host os now?

 

If I now run 

 

[root@ractor ~]# yum update

Loaded plugins: fastestmirror, langpacks

Repository virtio-win-stable is listed more than once in the configuration

Loading mirror speeds from cached hostfile

 * base: ba.mirror.garr.it  

 * extras: artfiles.org  

 * ovirt-3.6: ftp.nluug.nl  

 * ovirt-3.6-epel: epel.besthosting.ua  

 * ovirt-4.0: ftp.nluug.nl  

 * ovirt-4.0-epel: epel.besthosting.ua  

 * updates: ba.mirror.garr.it  

Resolving Dependencies

 

and relevant updates proposed are

 

Installing:

 kernelx86_64   3.10.0-514.2.2.el7
updates   37 M

 

. . .

 

Updating:

 

. . .

 

 centos-releasex86_64   7-3.1611.el7.centos   
base  23 k

 

. . . 

 

 libvirt   x86_64   2.0.0-10.el7_3.2  
updates  138 k

 libvirt-clientx86_64   2.0.0-10.el7_3.2  
updates  4.3 M

 libvirt-daemonx86_64   2.0.0-10.el7_3.2  
updates  720 k

 libvirt-daemon-config-network x86_64   2.0.0-10.el7_3.2  
updates  139 k

 libvirt-daemon-config-nwfilterx86_64   2.0.0-10.el7_3.2  
updates  141 k

 libvirt-daemon-driver-interface   x86_64   2.0.0-10.el7_3.2  
updates  181 k

 libvirt-daemon-driver-lxc x86_64   2.0.0-10.el7_3.2  
updates  803 k

 libvirt-daemon-driver-network x86_64   2.0.0-10.el7_3.2  
updates  337 k

 libvirt-daemon-driver-nodedev x86_64   2.0.0-10.el7_3.2  
updates  181 k

 libvirt-daemon-driver-nwfilterx86_64   2.0.0-10.el7_3.2  
updates  205 k

 libvirt-daemon-driver-qemux86_64   2.0.0-10.el7_3.2  
updates  615 k

 libvirt-daemon-driver-secret  x86_64   2.0.0-10.el7_3.2  
updates  171 k

 libvirt-daemon-driver-storage x86_64   2.0.0-10.el7_3.2  
updates  375 k

 libvirt-daemon-kvmx86_64   2.0.0-10.el7_3.2  
updates  137 k

 libvirt-lock-sanlock  x86_64   2.0.0-10.el7_3.2  
updates  186 k

 libvirt-pythonx86_64   2.0.0-2.el7   
base 321 k

 

. . .

 

 vdsm  x86_64   4.18.15.3-1.el7.centos
ovirt-4.0688 k

 vdsm-api  noarch   4.18.15.3-1.el7.centos
ovirt-4.0 53 k

 vdsm-cli  noarch   4.18.15.3-1.el7.centos
ovirt-4.0 67 k

 vdsm-hook-vmfex-dev   noarch   4.18.15.3-1.el7.centos   

Re: [ovirt-users] 3.6.7 engine: compatible with host centos 7.3/vdsm 4.18/qemu 2.6?

[Christophe TREFOIS]

Hi Yaniv,

Thanks!

Just to be 100% sure, on the hosts we upgrade to 7.3 first and then to 4.0? Or 
can i add the 4.0 repo and update everything together?

For the engine it is quite clear now and makes sense I guess. New CentOS 
requires oVirt 4, so we should upgrade to it first.

Thanks for your help,
Christophe

Sent from my iPhone

On 15 Dec 2016, at 18:51, Yaniv Dary 
<yd...@redhat.com<mailto:yd...@redhat.com>> wrote:

Backup, upgrade oVirt to 4, upgrade engine OS to 7.3, start upgrading 
hypervisors to 4 on 7.3 as well.

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: yd...@redhat.com<mailto:yd...@redhat.com>
IRC : ydary

On Dec 15, 2016 7:33 PM, "Christophe TREFOIS" 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Hi Yaniv,

Would you recommend first to upgrade to CentOS 7.3, and then to oVirt 4 or ?

We are currently running CentOS 7.2 (sometimes 7.1) with oVirt 3.6.

Thanks,
Christophe

--

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124<tel:+352%2046%2066%2044%206124>
F: +352 46 66 44 6949<tel:+352%2046%2066%2044%206949>
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On 15 Dec 2016, at 18:16, Yaniv Dary 
<yd...@redhat.com<mailto:yd...@redhat.com>> wrote:

It may work, but we don't support 3.6 for a while and I'm not sure what issues 
you may encounter.

It is safer to upgrade the engine first and the hosts later. 4.0 supports 3.6 
compatibility, just make sure all cluster are 3.6 with el7 prior to updating.

Yaniv Dary
Technical Product Manager
Red Hat Israel Ltd.
34 Jerusalem Road
Building A, 4th floor
Ra'anana, Israel 4350109

Tel : +972 (9) 7692306<tel:+972%209-769-2306>
8272306
Email: yd...@redhat.com<mailto:yd...@redhat.com>
IRC : ydary

On Dec 15, 2016 6:49 PM, "Richard Chan" 
<rich...@treeboxsolutions.com<mailto:rich...@treeboxsolutions.com>> wrote:
Planning and upgrade from 3.6.8 to 4.0.6:

4.0.6 mentions supporting CentOS 7.3 and qemu-kvm-ev 2.6

Is it possible in a 3.6.7 environment to upgrade all the hosts first to CentOS 
7.3, vdsm 4.18, and qemu-kvm-ev 2.6 before tackling the engine? In other words, 
is the 4.0.6 host stack compatible with a 3.6.7 engine?



--
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Re: [ovirt-users] 3.6.7 engine: compatible with host centos 7.3/vdsm 4.18/qemu 2.6?

[Christophe TREFOIS]

Hi Yaniv,

Would you recommend first to upgrade to CentOS 7.3, and then to oVirt 4 or ?

We are currently running CentOS 7.2 (sometimes 7.1) with oVirt 3.6.

Thanks,
Christophe
-- 

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb <http://www.uni.lu/lcsb>
 <https://www.facebook.com/trefex>   <https://twitter.com/Trefex>   
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> On 15 Dec 2016, at 18:16, Yaniv Dary <yd...@redhat.com> wrote:
> 
> It may work, but we don't support 3.6 for a while and I'm not sure what 
> issues you may encounter. 
> 
> It is safer to upgrade the engine first and the hosts later. 4.0 supports 3.6 
> compatibility, just make sure all cluster are 3.6 with el7 prior to updating. 
>  
> 
> 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: yd...@redhat.com <mailto:yd...@redhat.com>
> IRC : ydary
> 
> On Dec 15, 2016 6:49 PM, "Richard Chan" <rich...@treeboxsolutions.com 
> <mailto:rich...@treeboxsolutions.com>> wrote:
> Planning and upgrade from 3.6.8 to 4.0.6:
> 
> 4.0.6 mentions supporting CentOS 7.3 and qemu-kvm-ev 2.6
> 
> Is it possible in a 3.6.7 environment to upgrade all the hosts first to 
> CentOS 7.3, vdsm 4.18, and qemu-kvm-ev 2.6 before tackling the engine? In 
> other words, is the 4.0.6 host stack compatible with a 3.6.7 engine?
> 
> 
> 
> -- 
> Richard Chan
> 
> 
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Re: [ovirt-users] Move a VM between 2 setups

[Christophe TREFOIS]

Hi,

The reason I use this term is because it is indeed 2 engines, or two different 
setups / environments.

I’m not talking about moving a VM from a virtual DC to another virtual DC in 
the same engine.

Best,
-- 

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb <http://www.uni.lu/lcsb>
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> On 14 Nov 2016, at 22:51, c...@endlessnow.com wrote:
> 
> Export domains are to move VMs between oVirt environments.  As already 
> mentioned, you attach the export domain to one data center, export the vm, 
> maint/detach, attach to different data center, attach and import (then 
> maint/detach, etc.).
> 
> The language "export domains  'between' engines" is a bit confusing...
> 
> 
> 
> - Original Message -
> From:
> "Christophe TREFOIS" <christophe.tref...@uni.lu>
> 
> To:
> "Beckman Daniel" <daniel.beck...@ingramcontent.com>, "users" <users@ovirt.org>
> Cc:
> 
> Sent:
> Mon, 14 Nov 2016 20:10:16 +
> Subject:
> Re: [ovirt-users] Move a VM between 2 setups
> 
> 
> Hi Daniel,
> 
> 
> 
>  
> Fantastic information. Thanks so much for this.
> 
> 
> 
>  
> I was already using export domains inside my current engine, but not sure if 
> it would also work “between” engines so to speak.
> 
> 
> 
>  
> Have a great evening!
> 
> 
> Christophe
> 
> 
> 
>  
> From: Beckman, Daniel [mailto:daniel.beck...@ingramcontent.com] 
> Sent: lundi 14 novembre 2016 20:43
> To: Christophe TREFOIS <christophe.tref...@uni.lu>; users <users@ovirt.org>
> Subject: Re: [ovirt-users] Move a VM between 2 setups
> 
> 
> 
>  
> Hi Christophe,
> 
> 
> 
>  
> An “export domain” is made for just this purpose. Create a NFS (version 3) 
> share and make it accessible to the hypervisors for each engine. (It should 
> be a dedicated NFS share, not used for anything else.) As I recall it should 
> be owned by vdsm:vdsm (36:36). In one of the engines (doesn’t matter which), 
> in the web admin page go to Storage and add a new NFS based export domain, 
> using the NFS share you created. Once it’s activated, test it out; try 
> right-clicking on a VM to “export” it.
> 
> 
> 
>  
> Note that there can only be one engine connected to a given export domain at 
> any one time. When you’re done testing the export domain on the first engine, 
> you need to put it into “maintenance” and ultimately “detach” it.
> 
> 
> 
>  
> Then go to the other engine, and this time under Storage instead of “new 
> domain” click “import domain” and enter the same NFS share information. It 
> should recognize that you already have an export domain setup under that NFS 
> share.  Attach and activate it, and under Storage /  
>  / VM Import, try importing the VM you had previously exported.
> 
> 
> 
>  
> This is covered (sparsely) in the oVirt documentation at 
> https://www.ovirt.org/documentation/admin-guide/administration-guide/ 
> <https://www.ovirt.org/documentation/admin-guide/administration-guide/>, and 
> it’s covered more coherently in the commercial RHV documentation at 
> https://access.redhat.com/documentation/en/red-hat-virtualization/4.0/single/administration-guide#Storage_properties
>  
> <https://access.redhat.com/documentation/en/red-hat-virtualization/4.0/single/administration-guide#Storage_properties>.
> 
> 
> 
>  
> Best,
> 
> 
> Daniel
> 
> 
> 
>  
> From: <users-boun...@ovirt.org <mailto:users-boun...@ovirt.org>> on behalf of 
> Christophe TREFOIS <christophe.tref...@uni.lu 
> <mailto:christophe.tref...@uni.lu>>
> Date: Monday, November 14, 2016 at 11:14 AM
> To: users <users@ovirt.org <mailto:users@ovirt.org>>
> Subject: [ovirt-users] Move a VM between 2 setups
> 
> 
> 
>  
> Hi,
> 
> 
> 
>  
> We have a setup where we want to deploy 2 engines as the network between 2 
> buildings is unreliable.
> 
> 
> 
>  
> With 2 engines, we then want to be able to move V

Re: [ovirt-users] Move a VM between 2 setups

[Christophe TREFOIS]

Hi Daniel,

 

Fantastic information. Thanks so much for this.

 

I was already using export domains inside my current engine, but not sure if it 
would also work “between” engines so to speak.

 

Have a great evening!

Christophe

 

From: Beckman, Daniel [mailto:daniel.beck...@ingramcontent.com] 
Sent: lundi 14 novembre 2016 20:43
To: Christophe TREFOIS <christophe.tref...@uni.lu>; users <users@ovirt.org>
Subject: Re: [ovirt-users] Move a VM between 2 setups

 

Hi Christophe,

 

An “export domain” is made for just this purpose. Create a NFS (version 3) 
share and make it accessible to the hypervisors for each engine. (It should be 
a dedicated NFS share, not used for anything else.) As I recall it should be 
owned by vdsm:vdsm (36:36). In one of the engines (doesn’t matter which), in 
the web admin page go to Storage and add a new NFS based export domain, using 
the NFS share you created. Once it’s activated, test it out; try right-clicking 
on a VM to “export” it. 

 

Note that there can only be one engine connected to a given export domain at 
any one time. When you’re done testing the export domain on the first engine, 
you need to put it into “maintenance” and ultimately “detach” it.

 

Then go to the other engine, and this time under Storage instead of “new 
domain” click “import domain” and enter the same NFS share information. It 
should recognize that you already have an export domain setup under that NFS 
share.  Attach and activate it, and under Storage /   
/ VM Import, try importing the VM you had previously exported. 

 

This is covered (sparsely) in the oVirt documentation at 
https://www.ovirt.org/documentation/admin-guide/administration-guide/, and it’s 
covered more coherently in the commercial RHV documentation at 
https://access.redhat.com/documentation/en/red-hat-virtualization/4.0/single/administration-guide#Storage_properties.
 

 

Best,

Daniel

 

From: <users-boun...@ovirt.org <mailto:users-boun...@ovirt.org> > on behalf of 
Christophe TREFOIS <christophe.tref...@uni.lu 
<mailto:christophe.tref...@uni.lu> >
Date: Monday, November 14, 2016 at 11:14 AM
To: users <users@ovirt.org <mailto:users@ovirt.org> >
Subject: [ovirt-users] Move a VM between 2 setups

 

Hi, 

 

We have a setup where we want to deploy 2 engines as the network between 2 
buildings is unreliable.

 

With 2 engines, we then want to be able to move VMs (one time) from current 
engine where they are running to new engine in the other building.

 

Is there a recommended workflow for doing this?

We have access to shared NFS for this task if required.

 

Thanks for any pointers,

Christophe

-- 

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
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[ovirt-users] Move a VM between 2 setups

[Christophe TREFOIS]

Hi,

We have a setup where we want to deploy 2 engines as the network between 2 
buildings is unreliable.

With 2 engines, we then want to be able to move VMs (one time) from current 
engine where they are running to new engine in the other building.

Is there a recommended workflow for doing this?
We have access to shared NFS for this task if required.

Thanks for any pointers,
Christophe
-- 

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
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Re: [ovirt-users] oVirt on a single server

[Christophe TREFOIS]

Hi,

No, I move VMs around with an Export Storage domain. 

All NFS is exported only to the local machine.

Nothing is “shared” between hosts. But because I want to export VMs, we use 
“shared” storage in oVirt instead of “local”.

Best,

-- 

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Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
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> On 06 Sep 2016, at 10:06, Yedidyah Bar David <d...@redhat.com> wrote:
> 
> On Tue, Sep 6, 2016 at 9:53 AM, Christophe TREFOIS
> <christophe.tref...@uni.lu> wrote:
>> Personally my use case is that I have 4 machines with different specs and 
>> storage sizing. So I setup four DC with 1 host each. Then I have hosted 
>> engine on one of the hosts. Storage is local shared via NFS so that I can 
>> move VMs around.
> 
> Not sure I fully understand.
> 
> You use each of the 4 machines for both storage and running VMs?
> And export nfs on each to all the others?
> 
> So that if a VM needs more CPU/memory then disk IO, you can move
> it to another machine and hopefully get better performance even
> though the storage is not local?
> 
> I admit that it sounds very reasonable, and agree that doing this
> with nfs is easier than with iSCSI. If you don't mind the risk of
> local-nfs-mount locks, fine. As others noted, seems like it's quite
> a low risk.
> 
>> 
>> At this point we are not interested necessarily in HA.
>> 
>> Maybe for you that's the definition of a Dev environment as production has 
>> other attributes than just the type of storage?
> 
> Dev or Prod is for you to define :-)
> 
> How much time/money do you loose if a machine dies? If a machine
> locks up until someone notices and handles?
> 
>> 
>> Would be nice to hear your thoughts about this.
> 
> As wrote above, sounds reasonable if you understand the risks
> and can live with them.
> 
> Looking at the future you might want to check HC:
> 
> https://www.ovirt.org/develop/release-management/features/gluster/glusterfs-hyperconvergence/
> 
>> 
>> Kind regards,
>> Christophe
>> 
>> Sent from my iPhone
>> 
>>> On 06 Sep 2016, at 08:45, Yedidyah Bar David <d...@redhat.com> wrote:
>>> 
>>> On Tue, Sep 6, 2016 at 12:34 AM, Christophe TREFOIS
>>> <christophe.tref...@uni.lu> wrote:
>>>> So basically we need at least 2 nodes to enter the realm of testing and 
>>>> maintained?
>>> 
>>> I think some people occasionally use hosted-engine with local
>>> iSCSI storage on a single machine. AFAIK it's not tested by CI
>>> or often, but patches are welcome - e.g. using lago and
>>> ovirt-system-tests.
>>> 
>>> Can you please explain your intentions/requirements?
>>> 
>>> Even if it works, oVirt is not designed for single-machine
>>> _production_ use. For that, I think that most people agree that
>>> virt-manager is more suitable. oVirt on a single machine is
>>> usually for testing/demonstration/learning/etc.
>>> 
>>>> 
>>>> If we’re talking pure oVirt here.
>>>> 
>>>> --
>>>> 
>>>> Dr Christophe Trefois, Dipl.-Ing.
>>>> Technical Specialist / Post-Doc
>>>> 
>>>> UNIVERSITÉ DU LUXEMBOURG
>>>> 
>>>> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
>>>> Campus Belval | House of Biomedicine
>>>> 6, avenue du Swing
>>>> L-4367 Belvaux
>>>> T: +352 46 66 44 6124
>>>> F: +352 46 66 44 6949
>>>> http://www.uni.lu/lcsb
>>>> 
>>>> 
>>>> 
>>>> 
>>>> This message is confidential and may contain privileged information.
>>>> It is intended for the named recipient only.
>>>> If you receive it in error please notify me and permanently delete the 
>>>> original message and any copies.
>>>> 
>>>> 
>>>> 
>>>> 
>>>>> On 05 Sep 2016, at 16:31, Fernando Frediani 
>>>>> <fernando.fredi...@upx.com.br> wrote:
>>>>> 
>>>>> Adding Kimchi to oVirt node perhaps may be the easiest option. It can be 
>>>>> pretty u

Re: [ovirt-users] oVirt on a single server

[Christophe TREFOIS]

Personally my use case is that I have 4 machines with different specs and 
storage sizing. So I setup four DC with 1 host each. Then I have hosted engine 
on one of the hosts. Storage is local shared via NFS so that I can move VMs 
around.

At this point we are not interested necessarily in HA.

Maybe for you that's the definition of a Dev environment as production has 
other attributes than just the type of storage?

Would be nice to hear your thoughts about this.

Kind regards,
Christophe 

Sent from my iPhone

> On 06 Sep 2016, at 08:45, Yedidyah Bar David <d...@redhat.com> wrote:
> 
> On Tue, Sep 6, 2016 at 12:34 AM, Christophe TREFOIS
> <christophe.tref...@uni.lu> wrote:
>> So basically we need at least 2 nodes to enter the realm of testing and 
>> maintained?
> 
> I think some people occasionally use hosted-engine with local
> iSCSI storage on a single machine. AFAIK it's not tested by CI
> or often, but patches are welcome - e.g. using lago and
> ovirt-system-tests.
> 
> Can you please explain your intentions/requirements?
> 
> Even if it works, oVirt is not designed for single-machine
> _production_ use. For that, I think that most people agree that
> virt-manager is more suitable. oVirt on a single machine is
> usually for testing/demonstration/learning/etc.
> 
>> 
>> If we’re talking pure oVirt here.
>> 
>> --
>> 
>> Dr Christophe Trefois, Dipl.-Ing.
>> Technical Specialist / Post-Doc
>> 
>> UNIVERSITÉ DU LUXEMBOURG
>> 
>> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
>> Campus Belval | House of Biomedicine
>> 6, avenue du Swing
>> L-4367 Belvaux
>> T: +352 46 66 44 6124
>> F: +352 46 66 44 6949
>> http://www.uni.lu/lcsb
>> 
>> 
>> 
>> 
>> This message is confidential and may contain privileged information.
>> It is intended for the named recipient only.
>> If you receive it in error please notify me and permanently delete the 
>> original message and any copies.
>> 
>> 
>> 
>> 
>>> On 05 Sep 2016, at 16:31, Fernando Frediani <fernando.fredi...@upx.com.br> 
>>> wrote:
>>> 
>>> Adding Kimchi to oVirt node perhaps may be the easiest option. It can be 
>>> pretty useful for many situations and doesn't need such thing like mounting 
>>> NFS in localhost.
>>> 
>>> It is not nice to not have a All-in-One stable solution anymore as this can 
>>> help with its adoption for later growth.
>>> 
>>> oVirt-Cockpit looks nice and intresting.
>>> 
>>> Fernando
>>> 
>>> 
>>>> On 05/09/2016 05:18, Barak Korren wrote:
>>>>> On 4 September 2016 at 23:45, zero four <zfnoc...@gmail.com> wrote:
>>>>> ...
>>>>> I understand and acknowledge that oVirt is not targeted towards homelab
>>>>> setups, or at least small homelab setups.  However I believe that having a
>>>>> solid configuration for such use cases would be a benefit to the project 
>>>>> as
>>>>> a whole.
>>>> As others have already mentioned, using the full oVirt  with engine in
>>>> a single host scenario can work, but is not currently actively
>>>> maintained or tested.
>>>> 
>>>> There are other options originating from the oVirt community however.
>>>> 
>>>> One notable option is to use the Cockpit-oVirt plugin [1] which can
>>>> use VDSM to manage VMs on a single host.
>>>> 
>>>> Another option is to use the Kimchi project [2] for which discussion
>>>> for making it an oVirt project had taken part in the past [3]. It
>>>> seems that also some work for inclusion in oVirt node was also planned
>>>> at some point [4].
>>>> 
>>>> [1]: http://www.ovirt.org/develop/release-management/features/cockpit/
>>>> [2]: https://github.com/kimchi-project/kimchi
>>>> [3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
>>>> [4]: 
>>>> http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
>>> 
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> 
> 
> -- 
> Didi


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Re: [ovirt-users] oVirt on a single server

[Christophe TREFOIS]

So basically we need at least 2 nodes to enter the realm of testing and 
maintained?

If we’re talking pure oVirt here.

-- 

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb




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> On 05 Sep 2016, at 16:31, Fernando Frediani <fernando.fredi...@upx.com.br> 
> wrote:
> 
> Adding Kimchi to oVirt node perhaps may be the easiest option. It can be 
> pretty useful for many situations and doesn't need such thing like mounting 
> NFS in localhost.
> 
> It is not nice to not have a All-in-One stable solution anymore as this can 
> help with its adoption for later growth.
> 
> oVirt-Cockpit looks nice and intresting.
> 
> Fernando
> 
> 
> On 05/09/2016 05:18, Barak Korren wrote:
>> On 4 September 2016 at 23:45, zero four <zfnoc...@gmail.com> wrote:
>> ...
>>> I understand and acknowledge that oVirt is not targeted towards homelab
>>> setups, or at least small homelab setups.  However I believe that having a
>>> solid configuration for such use cases would be a benefit to the project as
>>> a whole.
>> As others have already mentioned, using the full oVirt  with engine in
>> a single host scenario can work, but is not currently actively
>> maintained or tested.
>> 
>> There are other options originating from the oVirt community however.
>> 
>> One notable option is to use the Cockpit-oVirt plugin [1] which can
>> use VDSM to manage VMs on a single host.
>> 
>> Another option is to use the Kimchi project [2] for which discussion
>> for making it an oVirt project had taken part in the past [3]. It
>> seems that also some work for inclusion in oVirt node was also planned
>> at some point [4].
>> 
>> [1]: http://www.ovirt.org/develop/release-management/features/cockpit/
>> [2]: https://github.com/kimchi-project/kimchi
>> [3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
>> [4]: 
>> http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
>> 
> 
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Re: [ovirt-users] oVirt on a single server

[Christophe TREFOIS]

Oh wow. Well then I guess we are in a bad situation now. Don't really have the 
infra to move to shared storage...

Isn't this the same issue then with NFS over gluster?

Best,

Sent from my iPhone

> On 05 Sep 2016, at 08:37, Nir Soffer <nsof...@redhat.com> wrote:
> 
>> On Mon, Sep 5, 2016 at 8:46 AM, Philip Lo <lokoi...@yahoo.com> wrote:
>> I'm running single node hosted engine 4.0.x with local NFS and it runs just
>> fine. Thanks
>> 
>> Regards,
>> Philip Lo
>> 
>> On 5 Sep 2016, at 5:45 AM, Christophe TREFOIS <christophe.tref...@uni.lu>
>> wrote:
>> 
>> I’m running 3.6 with local NFS for the hosted engine. I have more than one
>> host but they are all isolated and export they storage via local NFS. Setup
>> has been running since 1 year now.
> 
> It run fine but it may deadlock :-)
> 
> See
> - https://bugzilla.redhat.com/489889
> - https://access.redhat.com/solutions/22231
> 
> Such setup is ok for testing or development.
> 
> Nir


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Re: [ovirt-users] oVirt on a single server

[Christophe TREFOIS]

I’m running 3.6 with local NFS for the hosted engine. I have more than one host 
but they are all isolated and export they storage via local NFS. Setup has been 
running since 1 year now.

 

Maye you can give it a try?

 

Cheers,

Chris

 

From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of 
zero four
Sent: dimanche 4 septembre 2016 22:45
To: users@ovirt.org
Subject: [ovirt-users] oVirt on a single server

 

My current understanding is that oVirt no longer supports any single-server 
configuration since the All-In-One install was removed in 3.6.  While the 
hosted-engine install was supposed to replace it, it requires either networked 
storage (nfs, iscsi) or Glusterfs.  To my knowledge nfs/iscsi exported to 
localhost is not supported, so I would need at least 2 machines.  Furthermore 
Gluster requires at least 3 sources of storage for quorum (it would be great if 
there was an option to acknowledge the risks and continue), meaning a single 
machine is not practical.

 

I understand and acknowledge that oVirt is not targeted towards homelab setups, 
or at least small homelab setups.  However I believe that having a solid 
configuration for such use cases would be a benefit to the project as a whole.  
It allows oVirt to be much more visible in the homelab community, and more 
accessible to testing which in turn yields more people who have experience with 
oVirt.  As it stands most other virtualization products allow for usage (not 
just a livecd) in a single server environment, although not all features can be 
used of course.  vSphere, Xenserver, Proxmox, FIFO, and Nutanix all allow an 
installation on a single server. It appears that oVirt/RHV is the odd-one out - 
and it honestly shows when you look at what people talk about online - there is 
a huge gap between even Proxmox and oVirt when it comes to mindshare in the 
tech community, and it does not favor oVirt.



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Re: [ovirt-users] Upgrade datacenter from 3.6 to 4.0

[Christophe TREFOIS]

Really? That’s strange, as the engine should be backward compatible with 
previous versions no?

Anyway, I believe the devs :)

--

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Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
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On 24 Aug 2016, at 11:09, Barak Korren 
<bkor...@redhat.com<mailto:bkor...@redhat.com>> wrote:



On 23 August 2016 at 19:09, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Small add.

Shouldnt one update the engine first ?

Nope.
You should always update the hosts first. The other way around can work but 
AFAIK this is what is being tested.


--
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bkor...@redhat.com<mailto:bkor...@redhat.com>
RHEV-CI Team

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Re: [ovirt-users] Upgrade datacenter from 3.6 to 4.0

[Christophe TREFOIS]

Small add.

Shouldnt one update the engine first ?

--

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

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On 23 Aug 2016, at 14:28, Barak Korren 
<bkor...@redhat.com<mailto:bkor...@redhat.com>> wrote:


The following process worked for me:
1. ensure all hosts are running el7 or above, and all clusters had been 
upgraded to 3.6 level
2. upgrade vdsm to 4.x on all hosts (assuming you are not using ovirt-node) by 
switching to maintainance upgrading and activating one by one to avoid VM 
downtime.
3. Upgrade engine by following one of the documented procedures (we just 
inatalled a new machine for it and switched DNS after backup/restore).
4. Once satisfied that illing back to 3.6 engine will not be needed - upgrade 
cluster level.

בתאריך 23 באוג׳ 2016 12:43,‏ "Arnaud Lauriou" 
<arnaud.laur...@irisa.fr<mailto:arnaud.laur...@irisa.fr>> כתב:
Hi,

What is the best way to upgrade a datacenter from ovirt 3.6 to 4.0 ?
Upgrade engine, hosts then cluster ?
If right, how do you upgrade a host running ovirt 3.6.7 ? Simple upgrade or 
fresh install ?
During the update process of a cluster, some hosts will be in 3.6.7 and others 
in 4.0.2, is it a problem for migrating VMs ?

Found docs about engine upgrade but not a lot about host and cluster.

Thanks,

Arnaud
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Re: [ovirt-users] moving disk from nfs to iscsi

[Christophe TREFOIS]

Cn you share the solution?

Thanks,

  

> On 30 Jun 2016, at 23:20, Fernando Fuentes  wrote:
> 
> Solved my own issue. :)
> 
> Thanks guys!
> 
> -- 
> Fernando Fuentes
> ffuen...@txweather.org
> http://www.txweather.org
> 
> On Thu, Jun 30, 2016, at 02:40 PM, Fernando Fuentes wrote:
>> Team, I am trying to move my vms from one storage domain (NFS Shared) to
>> another (iSCSI Shared)...
>> 
>> Same DC. Two clusters. NFS is on cluser a and iscsi iss on cluster b.
>> 
>> When I try to move the disk in "cluster a" I am not getting the option
>> to move it the iscsi data domain on cluster b.
>> 
>> Ovirt 3.6.6 all centos 6.6 x86_64 hosts
>> 
>> Any ideas why?
>> 
>> Regards,
>> 
>> 
>> -- 
>> Fernando Fuentes
>> ffuen...@txweather.org
>> http://www.txweather.org
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Re: [ovirt-users] oVirt 3.6 to 4.0 Upgrade

[Christophe TREFOIS]

Hi,

 

For CentOS 7, I set the host in global maintenance, and then upgrade the engine.

 

After that, reboot cleanly the engine and set the maintenance back to none.

 

Then you should update the host itself. To do that, you are strongly advised to 
shutdown the VMs first.

If sanlock or vdsm get upgraded in the process, all your VMs will be terminated 
anyway, and this oculd lead to bad results.

 

So if you don’t have another host, shutdown everything except engine, set to 
maintenance global, update engine, reboot engine, shutdown engine, update host, 
and then set maintenance back to none.

 

Does that make sense?

 

From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of 
Yaniv Dary
Sent: dimanche 26 juin 2016 14:43
To: biholc...@l1049h.com
Cc: users 
Subject: Re: [ovirt-users] oVirt 3.6 to 4.0 Upgrade

 

What OS are you running the engine on?




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: yd...@redhat.com  
IRC : ydary

 

On Sun, Jun 26, 2016 at 7:54 AM, Brett I. Holcomb  > wrote:

In order to not hijack another thread I wanted to separate this from the 
"latest CentOS libvirt updates safe?" thread since this is different than what 
the OP on that thread wants to do.

I've been digging through the 4.0 documentation since I'd like to upgrade in 
the not to distant future so I'm doing research and I'm confused.

I'm running 3.6.6 in a hosted Engine environment.  My engine runs in a vm on 
the host.  The host is a physical box and the VMs are stored on a NAS accessed 
by an iSCSI LUN,  I have no other hosts running so I can not migrate.

According to this link, https://www.ovirt.org/release/4.0.0/, I'm told to 
simply run yum update ovirt-engine-setup and then engine-setup but I assume 
that's for a non hosted-engine environment.  I then go to the link for 
Hosted_Engine_HOwto#Upgrade_Hosted_Engine guide and am told to do this.

Set hosted-engine maintenance mode to global and other stuff that is written 
assuming I have some place to migrate my VMs to.  I do not have another host.

So how do I properly move to oVirt 4.0 from 3.6.6 on a single physical host 
running a hosted Engine VM?

Thanks.



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Re: [ovirt-users] latest CentOS libvirt updates safe?

[Christophe TREFOIS]

This is how I upgrade.

Works.

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb




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> On 26 Jun 2016, at 08:57, Yedidyah Bar David <d...@redhat.com> wrote:
> 
> On Sun, Jun 26, 2016 at 4:14 AM, Brett I. Holcomb <biholc...@l1049h.com> 
> wrote:
>> 
>> 
>> On 06/25/2016 08:10 PM, Nir Soffer wrote:
>>> 
>>> On Sat, Jun 25, 2016 at 8:51 PM, Brett I. Holcomb <biholc...@l1049h.com>
>>> wrote:
>>>> 
>>>> 
>>>> On 06/25/2016 10:57 AM, Robert Story wrote:
>>>> 
>>>> I have oVirt 3.5.x on CentOS 7 hosts. These hosts have updates which
>>>> include livbirt:
>>>> 
>>>>  libvirt-client   x86_64  1.2.17-13.el7_2.5  updates
>>>> 4.3 M
>>>>  libvirt-daemon   x86_64  1.2.17-13.el7_2.5  updates
>>>> 585 k
>>>>  libvirt-daemon-config-nwfilter   x86_64  1.2.17-13.el7_2.5  updates
>>>> 122 k
>>>>  libvirt-daemon-driver-interface  x86_64  1.2.17-13.el7_2.5  updates
>>>> 162 k
>>>>  libvirt-daemon-driver-networkx86_64  1.2.17-13.el7_2.5  updates
>>>> 302 k
>>>>  libvirt-daemon-driver-nodedevx86_64  1.2.17-13.el7_2.5  updates
>>>> 161 k
>>>>  libvirt-daemon-driver-nwfilter   x86_64  1.2.17-13.el7_2.5  updates
>>>> 185 k
>>>>  libvirt-daemon-driver-qemu   x86_64  1.2.17-13.el7_2.5  updates
>>>> 571 k
>>>>  libvirt-daemon-driver-secret x86_64  1.2.17-13.el7_2.5  updates
>>>> 155 k
>>>>  libvirt-daemon-driver-storagex86_64  1.2.17-13.el7_2.5  updates
>>>> 328 k
>>>>  libvirt-daemon-kvm   x86_64  1.2.17-13.el7_2.5  updates
>>>> 118 k
>>>>  libvirt-lock-sanlock
>>>> 
>>>> Is it safe to let yum update these packages while the host has running
>>>> VMs?
>>>> in maintenance mode? or not at all?
>>>> 
>>>> 
>>>> Robert
>>>> 
>>>> 
>>>> 
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>>>> 
>>>> 
>>>> I saw a response where we are supposed to go to maintenance mode and then
>>>> VMs will migrate but i've got nowhere to migrate to as I'm on a host with
>>>> hosted Engine and no other host to migrate to.  So do I shutdown all VMs
>>>> and
>>>> then go to maintenance mode and then update and reboot my host?
>>> 
>>> In this case you cannot put the host into maintenance, since hosted
>>> engine is running on this host.
>>> 
>>> Adding Simone to add more details on hosted engine upgrades.
>>> 
>>> Nir
>> 
>> Thanks.  That will be a big help.
> 
> Didn't test, I think this will work:
> 
> 1. Shutdown all other VMs (as you already did)
> 2. Move to global maintenance: hosted-engine --set-maintenance --mode=global
> 3. Cleanly shutdown engine vm
> 4. stop HA daemons: service ovirt-ha-agent stop ; service ovirt-ha-broker stop
> 5. yum update what you need/want
> 6. Reboot (perhaps not always needed)
> 7. See that HA daemons started
> 8. Exit global maintenance: hosted-engine --set-maintenance --mode=none
> 9. Start engine vm (or see that HA starts it)
> -- 
> Didi
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Re: [ovirt-users] Slow Export Domain

[Christophe TREFOIS]

Hi Yaniv,

I was referring to this: https://bugzilla.redhat.com/show_bug.cgi?id=1156115

But I guess it’s fixed sine 3.6.

Kind regards,

—
Christophe

On 22 Jun 2016, at 13:52, Yaniv Kaul 
<yk...@redhat.com<mailto:yk...@redhat.com>> wrote:



On Wed, Jun 22, 2016 at 1:31 PM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Not true, we have seen significant slowness because of the way oVirt exports 
the VMs, as well as I/O.

Can you elaborate on 'the way oVirt exports the VMs' ?
Y.


Best,

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124<tel:%2B352%2046%2066%2044%206124>
F: +352 46 66 44 6949<tel:%2B352%2046%2066%2044%206949>
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On 22 Jun 2016, at 10:07, Vinzenz Feenstra 
<vfeen...@redhat.com<mailto:vfeen...@redhat.com>> wrote:


On Jun 22, 2016, at 9:39 AM, Sven Achtelik 
<sven.achte...@mailpool.us<mailto:sven.achte...@mailpool.us>> wrote:

Hi Everyone,

I’m trying to export VMs to an Export Domain for Backup and noticed that all of 
this is running at max 100Mbit/s. Is this some limitation that comes with the 
Export Domain ? I’ve checked all network connections and all of them report at 
least 1000Mbits/s.  Am I missing something ?

So from our side there’s no limitation. So there might be a router, switch or 
anything in between that does not support 1 GBit on your network. You’re really 
just limited here by Storage and/or Network bandwith.


Thank you,

Sven
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Re: [ovirt-users] Slow Export Domain

[Christophe TREFOIS]

Not true, we have seen significant slowness because of the way oVirt exports 
the VMs, as well as I/O.

Best,

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

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On 22 Jun 2016, at 10:07, Vinzenz Feenstra 
<vfeen...@redhat.com<mailto:vfeen...@redhat.com>> wrote:


On Jun 22, 2016, at 9:39 AM, Sven Achtelik 
<sven.achte...@mailpool.us<mailto:sven.achte...@mailpool.us>> wrote:

Hi Everyone,

I’m trying to export VMs to an Export Domain for Backup and noticed that all of 
this is running at max 100Mbit/s. Is this some limitation that comes with the 
Export Domain ? I’ve checked all network connections and all of them report at 
least 1000Mbits/s.  Am I missing something ?

So from our side there’s no limitation. So there might be a router, switch or 
anything in between that does not support 1 GBit on your network. You’re really 
just limited here by Storage and/or Network bandwith.


Thank you,

Sven
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Re: [ovirt-users] Problem with Getty and Serial Consoles

[Christophe TREFOIS]

Oha, didn’t understand that line in the doc.


Will try and report back.

Thanks,

  

> On 14 Jun 2016, at 14:27, Francesco Romani <from...@redhat.com> wrote:
> 
> - Original Message -
>> From: "Christophe TREFOIS" <christophe.tref...@uni.lu>
>> To: "users" <users@ovirt.org>
>> Sent: Monday, June 13, 2016 5:05:28 PM
>> Subject: [ovirt-users] Problem with Getty and Serial Consoles
>> 
>> Dear all,
>> 
>> I am running 3.6.6 and am able to select a Console, however, the screen is
>> black.
>> 
>> On the hypervisor, I try to start getty service manually, and end up with
>> following error in journal
>> 
>> Jun 13 17:01:01 elephant-server.lcsb.uni.lu systemd[1]: Stopping
>> user-0.slice.
>> -- Subject: Unit user-0.slice has begun shutting down
>> -- Defined-By: systemd
>> -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
>> --
>> -- Unit user-0.slice has begun shutting down.
>> Jun 13 17:01:37 elephant-server.lcsb.uni.lu systemd[1]: Job
>> dev-hvc0.device/start timed out.
>> Jun 13 17:01:37 elephant-server.lcsb.uni.lu systemd[1]: Timed out waiting for
>> device dev-hvc0.device.
>> -- Subject: Unit dev-hvc0.device has failed
>> -- Defined-By: systemd
>> -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
>> --
>> -- Unit dev-hvc0.device has failed.
>> --
>> -- The result is timeout.
>> Jun 13 17:01:37 elephant-server.lcsb.uni.lu systemd[1]: Dependency failed for
>> Serial Getty on hvc0.
>> -- Subject: Unit serial-getty@hvc0.service has failed
>> -- Defined-By: systemd
>> -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
>> --
>> -- Unit serial-getty@hvc0.service has failed.
>> 
>> I am running CentOS 7.2.
>> 
>> Does anybody have some pointers on what could be the issue here?
> 
> Hi!
> 
> Make sure you added the right parameter to the kernel command line, as per
> 
> """
> TL;DR: To make use of a serial console, just use console=ttyS0 on the kernel 
> command line, and systemd will automatically start a getty on it for you.
> """
> 
> nice full tutorial on http://0pointer.de/blog/projects/serial-console.html
> 
> Bests,
> 
> -- 
> Francesco Romani
> RedHat Engineering Virtualization R & D
> Phone: 8261328
> IRC: fromani

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[ovirt-users] Problem with Getty and Serial Consoles

[Christophe TREFOIS]

Dear all,

I am running 3.6.6 and am able to select a Console, however, the screen is 
black.

On the hypervisor, I try to start getty service manually, and end up with 
following error in journal

Jun 13 17:01:01 elephant-server.lcsb.uni.lu 
systemd[1]: Stopping user-0.slice.
-- Subject: Unit user-0.slice has begun shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit user-0.slice has begun shutting down.
Jun 13 17:01:37 elephant-server.lcsb.uni.lu 
systemd[1]: Job dev-hvc0.device/start timed out.
Jun 13 17:01:37 elephant-server.lcsb.uni.lu 
systemd[1]: Timed out waiting for device dev-hvc0.device.
-- Subject: Unit dev-hvc0.device has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit dev-hvc0.device has failed.
--
-- The result is timeout.
Jun 13 17:01:37 elephant-server.lcsb.uni.lu 
systemd[1]: Dependency failed for Serial Getty on hvc0.
-- Subject: Unit serial-getty@hvc0.service 
has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit serial-getty@hvc0.service has failed.

I am running CentOS 7.2.

Does anybody have some pointers on what could be the issue here?

Thank you,

—
Christophe




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Re: [ovirt-users] Multi-node cluster with local storage

[Christophe TREFOIS]

Hi Pavel,

engine is running on one of the hosts. We don’t have HA for host, but I think 
it is OK.

We used a dedicated NFS for the hosted-engine on that host.

Best,

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
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On 04 Mar 2016, at 07:46, Pavel Gashev 
<p...@acronis.com<mailto:p...@acronis.com>> wrote:


Christophe,

Where is the engine running? Did you use one of NFSs for hosted-engine?

Thank you


From: Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>>
Sent: Mar 4, 2016 2:09 AM
To: Pavel Gashev; users@ovirt.org<mailto:users@ovirt.org>
Subject: RE: Multi-node cluster with local storage

Hi,

We have all nodes like you (5 currently), and have them setup as NFS instead of 
local storage.

You have slight overhead because it's NFS, but not so much, and it allows you 
to migrate VMs and disks, even if it's a manual disk, eg no HA will be possible.

So yeah, to me, it's a good option given your setup.

Best,

> -Original Message-
> From: users-boun...@ovirt.org<mailto:users-boun...@ovirt.org> 
> [mailto:users-boun...@ovirt.org] On Behalf
> Of Pavel Gashev
> Sent: jeudi 3 mars 2016 21:44
> To: users@ovirt.org<mailto:users@ovirt.org>
> Subject: [ovirt-users] Multi-node cluster with local storage
>
> Hello,
>
> I'd like to ask community, what is the best way to use oVirt in the following
> hardware configuration:
>
> Three servers connected 1GB network. Each server - 32 threads, 256GB RAM,
> 4TB RAID.
>
> Please note that a local storage and an 1GB network is a typical hardware
> configuration for almost any dedicated hosting.
>
> Unfortunately, oVirt doesn't support multi-node local storage clusters.
> And Gluster/CEPH doesn't work well over 1G network. It looks like that the
> only way to use oVirt in a three-node cluster is to share local storages over
> NFS. At least it makes possible to migrate VMs and move disks among
> hardware nodes.
>
> Does somebody have such setup?
>
> Thanks
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[ovirt-users] How reliable does network netween hypervisor / storage and engine has to be?

[Christophe TREFOIS]

Dear all,

We are considering moving 2 hypervisors and 1 iSCSI storage to a different 
physical data centre.

Does the engine have certain requirements in terms of network connectivity to 
achieve this?

The network should be quite stable, but is not able to sustain heavy data 
transfer for long periods of time.
Furthermore, we have noticed random connection drops between the two data 
centers, which recover usually quite fast.

Thank you for your input and experience,

Kind regards,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
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[ovirt-users] Serial Console not running on ovirt-engine

[Christophe TREFOIS]

Dear all,

So am running 3.6.3.4-1 on CentOS 7.2, and did a engine-setup.

I checked now, and see that ovirt-vmconsole-proxy was in fact installed 
(before, during or after, I don’t know).

[root@bio2-engine-server ~]# yum install ovirt-vmconsole-proxy
Loaded plugins: fastestmirror, versionlock
Loading mirror speeds from cached hostfile
 * base: centos.mirror.root.lu<http://centos.mirror.root.lu>
 * epel: mirror.imt-systems.com<http://mirror.imt-systems.com>
 * extras: centos.mirror.root.lu<http://centos.mirror.root.lu>
 * ovirt-3.5: ftp.nluug.nl<http://ftp.nluug.nl>
 * ovirt-3.5-epel: mirror.imt-systems.com<http://mirror.imt-systems.com>
 * ovirt-3.6: ftp.nluug.nl<http://ftp.nluug.nl>
 * ovirt-3.6-epel: mirror.imt-systems.com<http://mirror.imt-systems.com>
 * updates: centos.mirror.root.lu<http://centos.mirror.root.lu>
Package ovirt-vmconsole-proxy-1.0.0-1.el7.centos.noarch already installed and 
latest version
Nothing to do

But I don’t see any process running on port .

I couldn’t find in the docs, how to start the listener.

Could anybody help me out?

Thank you,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
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Re: [ovirt-users] seria consol setup

[Christophe TREFOIS]

Hi,

I have a question on this.

Can there be multiple SSH keys in that box in the GUI?

For instance, we might have 2 keys for our “Admin” account?

Thanks for your help,

—
C

  

> On 23 Mar 2016, at 12:46, Fabrice Bacchella  
> wrote:
> 
>> 
>> Le 23 mars 2016 à 12:28, Yedidyah Bar David  a écrit :
>> 
>> On Wed, Mar 23, 2016 at 1:04 PM, Fabrice Bacchella
>>  wrote:
>>> I'm reading the documentation here :
>>>   http://www.ovirt.org/documentation/admin-guide/serial-console-setup/
>>> 
>>> After a few strace, I found the ssh configuration used for the custom ssh 
>>> that listen on port :
>>> /usr/share/ovirt-vmconsole/ovirt-vmconsole-proxy/ovirt-vmconsole-proxy-sshd/sshd_config
>>> 
>>> And I have a big problem with it.
>>> It says "GSSAPIAuthentication no" but public key authentication is not 
>>> allowed in my data center, we use kerberos every where.
>>> So I wonder if I can edit this file ? How is it managed by ovirt ?
>> 
>> In general, things under /usr are only packaged, not "managed". So a
>> next upgrade will overwrite your changes.
> 
> Ok, so I just need to take care how modifications and upgrade are done (using 
> puppet) and everything should be fine.
>> 
>> Seems like both its systemd unit and sysv init script read
>> /etc/sysconfig/ovirt-vmconsole-proxy-sshd if it exists and add
>> ${OPTIONS} to sshd's command line. So you can try to:
>> 
>> echo 'OPTIONS="-o GSSAPIAuthentication=yes"' >>
>> /etc/sysconfig/ovirt-vmconsole-proxy-sshd
>> 
>> 
> 
> I tried that. It works. I now have pure kerberos only problems. But that's a 
> good direction.
> 
>> and restart it.
>> 
> 
> 
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Re: [ovirt-users] VM get stuck randomly

[Christophe TREFOIS]

Hi Kevin,

Ok thanks for the feedback.

Do you have experience with kernel panics and more specifically how to get any 
meaningful message if this is happening?

According to syslog on the guest, at least after reboot, there's no information 
that something went wrong.

Since this seems to leave the qemu world, I'm now not sure where to ask for 
support in this :(

Kind regards,

--
Christophe 
Sent from my iPhone

> On 30 Mar 2016, at 14:14, Kevin Wolf <kw...@redhat.com> wrote:
> 
> Hi Christophe,
> 
> Am 30.03.2016 um 13:45 hat Christophe TREFOIS geschrieben:
>> Another host went down, so I have to prepare info for this one.
>> 
>> I could not SSH to it anymore.
>> Console would show login screen, but no keystrokes were registered.
>> 
>> I could “suspend” the VM and “run” it, but still can’t SSH to it.
>> Before suspension, all QEMU threads were around 0%, after resuming, 3 of 
>> them hover at 100%.
>> 
>> Attached you could find the gdb, core dump, and other logs.
>> 
>> Logs: https://dl.dropboxusercontent.com/u/63261/ubuntu2-logs.tar.gz
>> 
>> Core Dump: https://dl.dropboxusercontent.com/u/63261/core-ubuntu2.tar.gz
>> 
>> Is there anything else we could provide?
> 
> This sounds much like it's not qemu that hangs (because then stopping
> and resuming wouldn't work any more), but just the guest OS that is
> running inside the VM.
> 
> We've had cases before where qemu was reported to hang with 100% CPU
> usage and in the end it turned out that the guest kernel had panicked.
> Can you check whether a guest kernel crash could be the cause? If this
> is reproducible, maybe the easiest way would be to attach a serial
> console to the VM and let the kernel print its messages there.
> 
> Kevin


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Re: [ovirt-users] VM get stuck randomly

[Christophe TREFOIS]

Hi Kevin,

Another host went down, so I have to prepare info for this one.

I could not SSH to it anymore.
Console would show login screen, but no keystrokes were registered.

I could “suspend” the VM and “run” it, but still can’t SSH to it.
Before suspension, all QEMU threads were around 0%, after resuming, 3 of them 
hover at 100%.

Attached you could find the gdb, core dump, and other logs.

Logs: https://dl.dropboxusercontent.com/u/63261/ubuntu2-logs.tar.gz

Core Dump: https://dl.dropboxusercontent.com/u/63261/core-ubuntu2.tar.gz

Is there anything else we could provide?

Since this is a test machine, I will leave it “hanging” for now.

Best,

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb




This message is confidential and may contain privileged information. 
It is intended for the named recipient only. 
If you receive it in error please notify me and permanently delete the original 
message and any copies. 


  

> On 29 Mar 2016, at 15:40, Kevin Wolf <kw...@redhat.com> wrote:
> 
> Am 27.03.2016 um 22:38 hat Christophe TREFOIS geschrieben:
>> Hi,
>> 
>> MS does not like my previous email, so here it is again with a link to 
>> Dropbox
>> instead of as attached.
>> 
>> ——
>> Hi Nir,
>> 
>> Inside the core dump tarball is also the output of the two gdb commands you
>> mentioned.
>> 
>> Understandbly, you might not want to download the big files for that, so I
>> attached them here seperately.
> 
> The gdb dump looks pretty much like an idle qemu that just sits there
> and waits for events. The vcpu threads seem to be running guest code,
> the I/O thread and SPICE thread are in poll() waiting for events to
> respond to, and finally the RCU thread is idle as well.
> 
> Does the qemu process still respond to monitor commands, so for example
> can you still pause and resume the guest?
> 
> Kevin
> 
>> For the other logs, here you go.
>> 
>> For gluster I didn’t know which, so I sent all.
>> 
>> I got the icinga notifcation at 17:06 CEST on March 27th (today). So for 
>> vdsm,
>> I provided logs from 16h-18h.
>> The check said that the VM was down for 11 minutes at that time.
>> 
>> https://dl.dropboxusercontent.com/u/63261/bioservice-1.tar.gz
>> 
>> Please do let me know if there is anything else I can provide.
>> 
>> Best regards,
>> 
>> 
>>> On 27 Mar 2016, at 21:24, Nir Soffer <nsof...@redhat.com> wrote:
>>> 
>>> On Sun, Mar 27, 2016 at 8:39 PM, Christophe TREFOIS
>>> <christophe.tref...@uni.lu> wrote:
>>>> Hi Nir,
>>>> 
>>>> Here is another one, this time with strace of children and gdb dump.
>>>> 
>>>> Interestingly, this time, the qemu seems stuck 0%, vs 100% for other cases.
>>>> 
>>>> The files for strace are attached.
>>> 
>>> Hopefully Kevin can take a look.
>>> 
>>> 
>>>> The gdb + core dump is found here (too
>>>> big):
>>>> 
>>>> https://dl.dropboxusercontent.com/u/63261/gdb-core.tar.gz
>>> 
>>> I think it will be more useful to extract a traceback of all threads
>>> and send the tiny traceback.
>>> 
>>> gdb --pid  --batch --eval-command='thread apply all bt'
>>> 
>>>> If it helps, most machines get stuck on the host hosting the self-hosted
>>>> engine, which runs a local 1-node glusterfs.
>>> 
>>> And getting also /var/log/messages, sanlock, vdsm, glusterfs and
>>> libvirt logs for this timeframe
>>> would be helpful.
>>> 
>>> Nir
>>> 
>>>> 
>>>> Thank you for your help,
>>>> 
>>>> —
>>>> Christophe
>>>> 
>>>> Dr Christophe Trefois, Dipl.-Ing.
>>>> Technical Specialist / Post-Doc
>>>> 
>>>> UNIVERSITÉ DU LUXEMBOURG
>>>> 
>>>> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
>>>> Campus Belval | House of Biomedicine
>>>> 6, avenue du Swing
>>>> L-4367 Belvaux
>>>> T: +352 46 66 44 6124
>>>> F: +352 46 66 44 6949
>>>> http://www.uni.lu/lcsb
>>>> 
>>>> 
>>>> 
>>>> 
>>>> This message is confidential and may contain privileged information.
>>>> It is intended for the named recipient only.
>>>> If you receive it in error please notify me and permanently delete the
>>>> original message and any copies.
>>>> 
>>>> 
>>>> 
>>>> 
>>>>> On 25 Mar 2016, at 11:53, Nir Soffer <nsof...@redhat.com> wrote:
>>>>> 
>>>>> gdb --pid  --batch --eval-command='thread apply all bt'

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Re: [ovirt-users] VM get stuck randomly

[Christophe TREFOIS]

FILE QUARANTINED

Microsoft Forefront Protection for Exchange Server removed a file since it was 
found to be infected.
File name: "winmail.dat"
Malware name: "ExceedinglyNested"
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Re: [ovirt-users] VM get stuck randomly

[Christophe TREFOIS]

Hi Nir,

Here is another one, this time with strace of children and gdb dump.

Interestingly, this time, the qemu seems stuck 0%, vs 100% for other cases.

The files for strace are attached. The gdb + core dump is found here (too big):

https://dl.dropboxusercontent.com/u/63261/gdb-core.tar.gz




If it helps, most machines get stuck on the host hosting the self-hosted 
engine, which runs a local 1-node glusterfs.

Thank you for your help,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb




This message is confidential and may contain privileged information.
It is intended for the named recipient only.
If you receive it in error please notify me and permanently delete the original 
message and any copies.




> On 25 Mar 2016, at 11:53, Nir Soffer <nsof...@redhat.com> wrote:
>
> gdb --pid  --batch --eval-command='thread apply all bt'



trace-stuck.tar.gz
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Re: [ovirt-users] VM get stuck randomly

[Christophe TREFOIS]

Hi Nir,

I restarted the VM now so I can't provide more info until the next time.

I could try strace -p  -f &> strace.log next time it hangs.

Could you just point me on how to obtain a dump with gdb?
Do I have to do anything special in order to catch the required contents?

For the idle vs stuck in a loop, I guess the VM has 4 children qemu threads, 
and one of them was at 100%.

Thank you for your help,

--
Christophe

> -Original Message-
> From: Nir Soffer [mailto:nsof...@redhat.com]
> Sent: jeudi 24 mars 2016 20:17
> To: Christophe TREFOIS <christophe.tref...@uni.lu>; Kevin Wolf
> <kw...@redhat.com>; Francesco Romani <from...@redhat.com>
> Cc: users <users@ovirt.org>; lcsb-sysadmins <lcsb-sysadm...@uni.lu>
> Subject: Re: [ovirt-users] VM get stuck randomly
> 
> On Thu, Mar 24, 2016 at 7:51 PM, Christophe TREFOIS
> <christophe.tref...@uni.lu> wrote:
> > Hi Nir,
> >
> > And the second one is down now too. see some comments below.
> >
> >> On 13 Mar 2016, at 12:51, Nir Soffer <nsof...@redhat.com> wrote:
> >>
> >> On Sun, Mar 13, 2016 at 9:46 AM, Christophe TREFOIS
> >> <christophe.tref...@uni.lu> wrote:
> >>> Dear all,
> >>>
> >>> I have a problem since couple of weeks, where randomly 1 VM (not
> always the same) becomes completely unresponsive.
> >>> We find this out because our Icinga server complains that host is down.
> >>>
> >>> Upon inspection, we find we can’t open a console to the VM, nor can we
> login.
> >>>
> >>> In oVirt engine, the VM looks like “up”. The only weird thing is that RAM
> usage shows 0% and CPU usage shows 100% or 75% depending on number of
> cores.
> >>> The only way to recover is to force shutdown the VM via 2-times
> shutdown from the engine.
> >>>
> >>> Could you please help me to start debugging this?
> >>> I can provide any logs, but I’m not sure which ones, because I couldn’t
> see anything with ERROR in the vdsm logs on the host.
> >>
> >> I would inspect this vm on the host when it happens.
> >>
> >> What is vdsm cpu usage? what is the qemu process (for this vm) cpu
> usage?
> >
> > vdsm cpu usage is going up and down to 15%.
> >
> > qemu process usage for the VM was 0, except for 1 of the threads “stuck”
> at 100%, rest was idle.
> 
> 0% may be a deadlock, 100% a thread stuck in endless loop, but this is just a
> wild guess.
> 
> >
> >>
> >> strace output of this qemu process (all threads) or a core dump can
> >> help qemu developers to understand this issue.
> >
> > I attached an strace on the process for:
> >
> > qemu 15241 10.6  0.4 4742904 1934988 ? Sl   Mar23 131:41
> /usr/libexec/qemu-kvm -name test-ubuntu-uni-lu -S -machine pc-i440fx-
> rhel7.2.0,accel=kvm,usb=off -cpu SandyBridge -m
> size=4194304k,slots=16,maxmem=4294967296k -realtime mlock=off -smp
> 4,maxcpus=64,sockets=16,cores=4,threads=1 -numa node,nodeid=0,cpus=0-
> 3,mem=4096 -uuid 754871ec-0339-4a65-b490-6a766aaea537 -smbios
> type=1,manufacturer=oVirt,product=oVirt Node,version=7-
> 2.1511.el7.centos.2.10,serial=4C4C4544-0048-4610-8052-
> B4C04F575831,uuid=754871ec-0339-4a65-b490-6a766aaea537 -no-user-config
> -nodefaults -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-test-ubuntu-uni-
> lu/monitor.sock,server,nowait -mon
> chardev=charmonitor,id=monitor,mode=control -rtc base=2016-03-
> 23T22:06:01,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -
> no-shutdown -boot strict=on -device piix3-usb-
> uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-scsi-
> pci,id=scsi0,bus=pci.0,addr=0x4 -device virtio-serial-pci,id=virtio-
> serial0,max_ports=16,bus=pci.0,addr=0x5 -drive if=none,id=drive-ide0-1-
> 0,readonly=on,format=raw,serial= -device ide-
> cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive file=/rhev/data-
> center/0002-0002-0002-0002-03d5/8253a89b-651e-4ff4-865b-
> 57adef05d383/images/9d60ae41-bf17-48b4-b0e6-29625b248718/47a6916c-
> c902-4ea3-8dfb-a3240d7d9515,if=none,id=drive-virtio-
> disk0,format=qcow2,serial=9d60ae41-bf17-48b4-b0e6-
> 29625b248718,cache=none,werror=stop,rerror=stop,aio=threads -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-
> disk0,bootindex=1 -netdev tap,fd=108,id=hostnet0,vhost=on,vhostfd=109 -
> device virtio-net-
> pci,netdev=hostnet0,id=net0,mac=00:1a:4a:e5:12:0f,bus=pci.0,addr=0x3,boo
> tindex=2 -chardev
> socket,id=charchannel0,path=/var/lib/libvirt/qemu/channels/754871ec-
> 0339-4a65-b490-6a766aaea537.com.redhat.rhevm.vdsm,se

Re: [ovirt-users] VM get stuck randomly

[Christophe TREFOIS]

Dear list,

An Ubuntu 14.04 got stuck again on latest 3.6.4 with all patches applied.

Do you have any advice for me now, to try and figure out what could be wrong?

Does anybody else face issues with Ubuntu 14.04 and kernel 3.13.0-79-generic ?

Thank you,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb




This message is confidential and may contain privileged information. 
It is intended for the named recipient only. 
If you receive it in error please notify me and permanently delete the original 
message and any copies. 


  

> On 24 Mar 2016, at 10:45, Christophe TREFOIS <christophe.tref...@uni.lu> 
> wrote:
> 
> Hi,
> 
> We finally upgraded to 3.6.3 across the whole data center and will now see if 
> this issue reappears.
> 
> The upgrade went quite smooth, first from 3.5.4 to 3.5.6 and then to 3.6.3.
> 
> Thank you,
> 
> --
> Christophe
> 
>> -Original Message-
>> From: Nir Soffer [mailto:nsof...@redhat.com]
>> Sent: dimanche 13 mars 2016 12:51
>> To: Christophe TREFOIS <christophe.tref...@uni.lu>
>> Cc: users <users@ovirt.org>
>> Subject: Re: [ovirt-users] VM get stuck randomly
>> 
>> On Sun, Mar 13, 2016 at 9:46 AM, Christophe TREFOIS
>> <christophe.tref...@uni.lu> wrote:
>>> Dear all,
>>> 
>>> I have a problem since couple of weeks, where randomly 1 VM (not always
>> the same) becomes completely unresponsive.
>>> We find this out because our Icinga server complains that host is down.
>>> 
>>> Upon inspection, we find we can’t open a console to the VM, nor can we
>> login.
>>> 
>>> In oVirt engine, the VM looks like “up”. The only weird thing is that RAM
>> usage shows 0% and CPU usage shows 100% or 75% depending on number of
>> cores.
>>> The only way to recover is to force shutdown the VM via 2-times shutdown
>> from the engine.
>>> 
>>> Could you please help me to start debugging this?
>>> I can provide any logs, but I’m not sure which ones, because I couldn’t see
>> anything with ERROR in the vdsm logs on the host.
>> 
>> I would inspect this vm on the host when it happens.
>> 
>> What is vdsm cpu usage? what is the qemu process (for this vm) cpu usage?
>> 
>> strace output of this qemu process (all threads) or a core dump can help
>> qemu developers to understand this issue.
>> 
>>> 
>>> The host is running
>>> 
>>> OS Version: RHEL - 7 - 1.1503.el7.centos.2.8
>>> Kernel Version: 3.10.0 - 229.14.1.el7.x86_64
>>> KVM Version:2.1.2 - 23.el7_1.8.1
>>> LIBVIRT Version:libvirt-1.2.8-16.el7_1.4
>>> VDSM Version:   vdsm-4.16.26-0.el7.centos
>>> SPICE Version:  0.12.4 - 9.el7_1.3
>>> GlusterFS Version:  glusterfs-3.7.5-1.el7
>> 
>> You are running old versions, missing lot of fixes. Nothing specific to your
>> problem but this lower the chance to get a working system.
>> 
>> It would be nice if you can upgrade to ovirt-3.6 and report if it made any
>> change.
>> Or at lest latest ovirt-3.5.
>> 
>>> We use a locally exported gluster as storage domain (eg, storage is on the
>> same machine exposed via gluster). No replica.
>>> We run around 50 VMs on that host.
>> 
>> Why use gluster for this? Do you plan to add more gluster servers in the
>> future?
>> 
>> Nir
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Re: [ovirt-users] VM get stuck randomly

[Christophe TREFOIS]

Hi,

We finally upgraded to 3.6.3 across the whole data center and will now see if 
this issue reappears.

The upgrade went quite smooth, first from 3.5.4 to 3.5.6 and then to 3.6.3.

Thank you,

--
Christophe

> -Original Message-
> From: Nir Soffer [mailto:nsof...@redhat.com]
> Sent: dimanche 13 mars 2016 12:51
> To: Christophe TREFOIS <christophe.tref...@uni.lu>
> Cc: users <users@ovirt.org>
> Subject: Re: [ovirt-users] VM get stuck randomly
> 
> On Sun, Mar 13, 2016 at 9:46 AM, Christophe TREFOIS
> <christophe.tref...@uni.lu> wrote:
> > Dear all,
> >
> > I have a problem since couple of weeks, where randomly 1 VM (not always
> the same) becomes completely unresponsive.
> > We find this out because our Icinga server complains that host is down.
> >
> > Upon inspection, we find we can’t open a console to the VM, nor can we
> login.
> >
> > In oVirt engine, the VM looks like “up”. The only weird thing is that RAM
> usage shows 0% and CPU usage shows 100% or 75% depending on number of
> cores.
> > The only way to recover is to force shutdown the VM via 2-times shutdown
> from the engine.
> >
> > Could you please help me to start debugging this?
> > I can provide any logs, but I’m not sure which ones, because I couldn’t see
> anything with ERROR in the vdsm logs on the host.
> 
> I would inspect this vm on the host when it happens.
> 
> What is vdsm cpu usage? what is the qemu process (for this vm) cpu usage?
> 
> strace output of this qemu process (all threads) or a core dump can help
> qemu developers to understand this issue.
> 
> >
> > The host is running
> >
> > OS Version: RHEL - 7 - 1.1503.el7.centos.2.8
> > Kernel Version: 3.10.0 - 229.14.1.el7.x86_64
> > KVM Version:2.1.2 - 23.el7_1.8.1
> > LIBVIRT Version:libvirt-1.2.8-16.el7_1.4
> > VDSM Version:   vdsm-4.16.26-0.el7.centos
> > SPICE Version:  0.12.4 - 9.el7_1.3
> > GlusterFS Version:  glusterfs-3.7.5-1.el7
> 
> You are running old versions, missing lot of fixes. Nothing specific to your
> problem but this lower the chance to get a working system.
> 
> It would be nice if you can upgrade to ovirt-3.6 and report if it made any
> change.
> Or at lest latest ovirt-3.5.
> 
> > We use a locally exported gluster as storage domain (eg, storage is on the
> same machine exposed via gluster). No replica.
> > We run around 50 VMs on that host.
> 
> Why use gluster for this? Do you plan to add more gluster servers in the
> future?
> 
> Nir
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Re: [ovirt-users] Hosted engine disk migration

[Christophe TREFOIS]

This procedure is what makes so scared.

Restoring a backup, usually, ends up in cataclysmic nightmares. Maybe not so in 
oVirt :)

Is there a recommended way to test restoring an ovirt-engine backup to see if 
it would “fail” or “work” in production?


On 14 Mar 2016, at 07:57, Sandro Bonazzola 
> wrote:



On Fri, Mar 4, 2016 at 6:27 PM, Pat Riehecky 
> wrote:
I'm on oVirt 3.6

I'd like to migrate my hosted engine storage to another location and have a few 
questions:


There is no special procedure to migrate the Hosted Engine storage to a new one.
A possible way to do that is to backup the oVirt Engine data and restore them 
on a newly deployed Hosted Engine using the new storage location as if it was a 
migration from bare metal to hosted engine.




(a) what is the right syntax for glusterfs in 
/etc/ovirt-hosted-engine/hosted-engine.conf? (I'm currently on nfs3)

(b) what is the right syntax for fibre channel?

(c) where are instructions for how to migrate the actual disk files? (google 
was little help)

(d) Can the hosted engine use the same (gluster/fibre) volume as my VM Images?

(e) I get various "Cannot edit Virtual Machine. This VM is not managed by the 
engine." in the console for manipulating the HostedEngine.  Is that expected?

Pat

--
Pat Riehecky
Scientific Linux developer

Fermi National Accelerator Laboratory
www.fnal.gov
www.scientificlinux.org

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Sandro Bonazzola
Better technology. Faster innovation. Powered by community collaboration.
See how it works at redhat.com
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Re: [ovirt-users] VM get stuck randomly

[Christophe TREFOIS]

Hi Yaniv,

See my answers / questions below under [CT].

From: Yaniv Kaul [mailto:yk...@redhat.com]
Sent: dimanche 13 mars 2016 12:08
To: Christophe TREFOIS <christophe.tref...@uni.lu>
Cc: users <users@ovirt.org>
Subject: Re: [ovirt-users] VM get stuck randomly



On Sun, Mar 13, 2016 at 9:46 AM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Dear all,

I have a problem since couple of weeks, where randomly 1 VM (not always the 
same) becomes completely unresponsive.
We find this out because our Icinga server complains that host is down.

Upon inspection, we find we can’t open a console to the VM, nor can we login.

I assume 3.6's console feature, or is it Spice/VNC?
[CT]

This is 3.5, VNC/Spice yes. Sometimes we can connect, but there’s no way to do 
anything, eg type or so on.


In oVirt engine, the VM looks like “up”. The only weird thing is that RAM usage 
shows 0% and CPU usage shows 100% or 75% depending on number of cores.

Any chance there's really something bad going on within the VM? Anything in its 
journal or /var/log/messages or ... depending on the OS?
Y.
[CT]
It is possible. It seems to be mostly VMs with Ubuntu 14.04 and latest kernels. 
I read somewhere, I couldn’t find now, that there’s perhaps a bug in 3.x kernel 
with regards to libvirt / vdsm. But my knowledge is too limited to even know 
where to begin the investigation ☺

On the VM logs, we just see normal VM stuff, then nothing, and then when the VM 
was rebooted, there’s a couple of lines of ^@^@^@ characters repeating. But 
nothing else really.
Initially we thought it’s a bug with aufs on Docker, but the machines getting 
stuck now don’t run either.

From your answer, I deduce that if vdsm or libvirt or spm would see a problem 
with storage / memory / cpu, it would suspend the VM and provide that info to 
ovirt-engine?
Since this is not happening, you think it could be related to the inside of the 
VM rather than the oVirt environment, correct?

Thank you for your help (especially on a Sunday) ☺


The only way to recover is to force shutdown the VM via 2-times shutdown from 
the engine.

Could you please help me to start debugging this?
I can provide any logs, but I’m not sure which ones, because I couldn’t see 
anything with ERROR in the vdsm logs on the host.

The host is running

OS Version: RHEL - 7 - 1.1503.el7.centos.2.8
Kernel Version: 3.10.0 - 229.14.1.el7.x86_64
KVM Version:2.1.2 - 23.el7_1.8.1
LIBVIRT Version:libvirt-1.2.8-16.el7_1.4
VDSM Version:   vdsm-4.16.26-0.el7.centos
SPICE Version:  0.12.4 - 9.el7_1.3
GlusterFS Version:  glusterfs-3.7.5-1.el7

We use a locally exported gluster as storage domain (eg, storage is on the same 
machine exposed via gluster). No replica.
We run around 50 VMs on that host.

Thank you for your help in this,

—
Christophe


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[ovirt-users] VM get stuck randomly

[Christophe TREFOIS]

Dear all,

I have a problem since couple of weeks, where randomly 1 VM (not always the 
same) becomes completely unresponsive.
We find this out because our Icinga server complains that host is down.

Upon inspection, we find we can’t open a console to the VM, nor can we login.

In oVirt engine, the VM looks like “up”. The only weird thing is that RAM usage 
shows 0% and CPU usage shows 100% or 75% depending on number of cores.
The only way to recover is to force shutdown the VM via 2-times shutdown from 
the engine.

Could you please help me to start debugging this?
I can provide any logs, but I’m not sure which ones, because I couldn’t see 
anything with ERROR in the vdsm logs on the host.

The host is running 

OS Version: RHEL - 7 - 1.1503.el7.centos.2.8
Kernel Version: 3.10.0 - 229.14.1.el7.x86_64
KVM Version:2.1.2 - 23.el7_1.8.1
LIBVIRT Version:libvirt-1.2.8-16.el7_1.4
VDSM Version:   vdsm-4.16.26-0.el7.centos
SPICE Version:  0.12.4 - 9.el7_1.3
GlusterFS Version:  glusterfs-3.7.5-1.el7

We use a locally exported gluster as storage domain (eg, storage is on the same 
machine exposed via gluster). No replica.
We run around 50 VMs on that host.

Thank you for your help in this,

—
Christophe
  

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Re: [ovirt-users] Multi-node cluster with local storage

[Christophe TREFOIS]

Hi Pavel,

We setup an extra NFS on one of the hosts, and setup as hosted-engine.

That way, it works for us.

Using Gluster 3-way with CTDB was our initial plan, but we moved away from it 
as it seems unnecassiry complicated.

Kind reagrds,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
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On 04 Mar 2016, at 07:46, Pavel Gashev 
<p...@acronis.com<mailto:p...@acronis.com>> wrote:


Christophe,

Where is the engine running? Did you use one of NFSs for hosted-engine?

Thank you


From: Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>>
Sent: Mar 4, 2016 2:09 AM
To: Pavel Gashev; users@ovirt.org<mailto:users@ovirt.org>
Subject: RE: Multi-node cluster with local storage

Hi,

We have all nodes like you (5 currently), and have them setup as NFS instead of 
local storage.

You have slight overhead because it's NFS, but not so much, and it allows you 
to migrate VMs and disks, even if it's a manual disk, eg no HA will be possible.

So yeah, to me, it's a good option given your setup.

Best,

> -Original Message-
> From: users-boun...@ovirt.org<mailto:users-boun...@ovirt.org> 
> [mailto:users-boun...@ovirt.org] On Behalf
> Of Pavel Gashev
> Sent: jeudi 3 mars 2016 21:44
> To: users@ovirt.org<mailto:users@ovirt.org>
> Subject: [ovirt-users] Multi-node cluster with local storage
>
> Hello,
>
> I'd like to ask community, what is the best way to use oVirt in the following
> hardware configuration:
>
> Three servers connected 1GB network. Each server - 32 threads, 256GB RAM,
> 4TB RAID.
>
> Please note that a local storage and an 1GB network is a typical hardware
> configuration for almost any dedicated hosting.
>
> Unfortunately, oVirt doesn't support multi-node local storage clusters.
> And Gluster/CEPH doesn't work well over 1G network. It looks like that the
> only way to use oVirt in a three-node cluster is to share local storages over
> NFS. At least it makes possible to migrate VMs and move disks among
> hardware nodes.
>
> Does somebody have such setup?
>
> Thanks
> ___
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Re: [ovirt-users] Multi-node cluster with local storage

[Christophe TREFOIS]

Hi,

We have all nodes like you (5 currently), and have them setup as NFS instead of 
local storage.

You have slight overhead because it's NFS, but not so much, and it allows you 
to migrate VMs and disks, even if it's a manual disk, eg no HA will be possible.

So yeah, to me, it's a good option given your setup.

Best,

> -Original Message-
> From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf
> Of Pavel Gashev
> Sent: jeudi 3 mars 2016 21:44
> To: users@ovirt.org
> Subject: [ovirt-users] Multi-node cluster with local storage
> 
> Hello,
> 
> I'd like to ask community, what is the best way to use oVirt in the following
> hardware configuration:
> 
> Three servers connected 1GB network. Each server - 32 threads, 256GB RAM,
> 4TB RAID.
> 
> Please note that a local storage and an 1GB network is a typical hardware
> configuration for almost any dedicated hosting.
> 
> Unfortunately, oVirt doesn't support multi-node local storage clusters.
> And Gluster/CEPH doesn't work well over 1G network. It looks like that the
> only way to use oVirt in a three-node cluster is to share local storages over
> NFS. At least it makes possible to migrate VMs and move disks among
> hardware nodes.
> 
> Does somebody have such setup?
> 
> Thanks
> ___
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Re: [ovirt-users] No OVF Store on Export Domain - normal?

[Christophe TREFOIS]

Dear both,

Thanks for that. I hope I can upgrade to 3.6 soon.

Kind regards,

--
Christophe

From: Idan Shaby [mailto:ish...@redhat.com]
Sent: dimanche 21 février 2016 08:40
To: Nir Soffer <nsof...@redhat.com>
Cc: Christophe TREFOIS <christophe.tref...@uni.lu>; users@ovirt.org
Subject: Re: [ovirt-users] No OVF Store on Export Domain - normal?

This bug has been filed on 7/2/16 and solved on master on 9/2/16.


Regards,
Idan

On Sat, Feb 20, 2016 at 1:39 AM, Nir Soffer 
<nsof...@redhat.com<mailto:nsof...@redhat.com>> wrote:
On Sun, Feb 7, 2016 at 12:41 PM, Idan Shaby 
<ish...@redhat.com<mailto:ish...@redhat.com>> wrote:
> Hi Christophe,
>
> An export domain never contains OVF_STORE disks, and thus this message
> should not be logged at all.
> There's nothing you should do to fix it, just ignore it.

Ignoring the message will not fix the issue, please file a bug to remove or
rephrase this log.

>
>
> Regards,
> Idan
>
> On Sat, Feb 6, 2016 at 4:45 PM, Christophe TREFOIS
> <christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
>>
>> Note, I did mean
>>
>>
>>
>> “the export domain and ovirt have never been used below 3.5
>>
>>
>>
>> Thank you for your help,
>>
>>
>>
>> From: users-boun...@ovirt.org<mailto:users-boun...@ovirt.org> 
>> [mailto:users-boun...@ovirt.org<mailto:users-boun...@ovirt.org>] On Behalf
>> Of Christophe TREFOIS
>> Sent: samedi 6 février 2016 15:39
>> To: users@ovirt.org<mailto:users@ovirt.org>
>> Subject: [ovirt-users] No OVF Store on Export Domain - normal?
>>
>>
>>
>> Hi,
>>
>>
>>
>> When I attached my NFS export domain to a data center, I see the following
>> message in the events log
>>
>>
>>
>> “The Storage Domain does not contain any OVF_STORE disks. Usually the
>> Storage Domain does not contain OVF_STORE disks when the Storage Domain has
>> been previously managed with a Data Center version lower then 3.5.”
>>
>>
>>
>> However, the export domain and oVirt have been used below 3.5.
>>
>>
>>
>> Is this normal behavior for an export domain or is there something I
>> should do to fix it?
>>
>>
>>
>> I can export / import VMs from / to the export domain just fine (until
>> now)
>>
>>
>>
>> Thank you for your feedback,
>>
>>
>>
>> --
>>
>> Christophe
>>
>>
>> ___
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>>
>
>
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Re: [ovirt-users] Move from Gluster to NFS

[Christophe TREFOIS]

Hi Yaniv,

Would you recommend doing a clean install or can I simply move the HE from the 
gluster mount point to NFS and tell HA agent to boot from there?

What do you think? 

Thank you,

--
Christophe 
Sent from my iPhone

> On 14 Feb 2016, at 15:30, Yaniv Dary <yd...@redhat.com> wrote:
> 
> We will probably need to backup and restore the HE vm after doing a clean 
> install on NFS.
> 
> 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: yd...@redhat.com
> IRC : ydary
> 
>> On Sat, Feb 6, 2016 at 11:30 PM, Christophe TREFOIS 
>> <christophe.tref...@uni.lu> wrote:
>> Dear all,
>> 
>> I currently have a self-hosted setup with gluster on 1 node.
>> I do have other data centers with 3 other hosts and local (sharable) NFS 
>> storage. Furthermore, I have 1 NFS export domain.
>> 
>> We would like to move from Gluster to NFS only on the first host.
>> 
>> Does anybody have any experience with this?
>> 
>> Thank you,
>> 
>> —
>> Christophe
>>   
>> 
>> 
>> ___
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>> http://lists.ovirt.org/mailman/listinfo/users
> 


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Re: [ovirt-users] Move from Gluster to NFS

[Christophe TREFOIS]

Is there a reason why this is not possible?

Can I setup a second host in the engine cluster and move the engine with 
“storage” to that host?

So, what you would recommend is:


1.   Move all VMs from engine host to another Host

2.   Setup NFS on the empty HE host

3.   Shutdown the HE, and disable HA-proxy and agent

4.   Re-deploy the engine and restore from backup the HE

5.   Enjoy ?

Thank you for any help on this,
I really don’t want to end up with broken environment ☺

Kind regards,

--
Christophe

From: Yaniv Dary [mailto:yd...@redhat.com]
Sent: dimanche 14 février 2016 16:32
To: Christophe TREFOIS <christophe.tref...@uni.lu>
Cc: users <users@ovirt.org>
Subject: Re: [ovirt-users] Move from Gluster to NFS

You will not be able to move it between storage that is way I suggested the 
backup and restore path.


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: yd...@redhat.com<mailto:yd...@redhat.com>

IRC : ydary

On Sun, Feb 14, 2016 at 5:28 PM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Hi Yaniv,

Would you recommend doing a clean install or can I simply move the HE from the 
gluster mount point to NFS and tell HA agent to boot from there?

What do you think?

Thank you,

--
Christophe
Sent from my iPhone

On 14 Feb 2016, at 15:30, Yaniv Dary 
<yd...@redhat.com<mailto:yd...@redhat.com>> wrote:
We will probably need to backup and restore the HE vm after doing a clean 
install on NFS.


Yaniv Dary

Technical Product Manager

Red Hat Israel Ltd.

34 Jerusalem Road

Building A, 4th floor

Ra'anana, Israel 4350109



Tel : +972 (9) 7692306<tel:%2B972%20%289%29%207692306>

8272306

Email: yd...@redhat.com<mailto:yd...@redhat.com>

IRC : ydary

On Sat, Feb 6, 2016 at 11:30 PM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Dear all,

I currently have a self-hosted setup with gluster on 1 node.
I do have other data centers with 3 other hosts and local (sharable) NFS 
storage. Furthermore, I have 1 NFS export domain.

We would like to move from Gluster to NFS only on the first host.

Does anybody have any experience with this?

Thank you,

—
Christophe



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[ovirt-users] Move from Gluster to NFS

[Christophe TREFOIS]

Dear all,

I currently have a self-hosted setup with gluster on 1 node.
I do have other data centers with 3 other hosts and local (sharable) NFS 
storage. Furthermore, I have 1 NFS export domain.

We would like to move from Gluster to NFS only on the first host.

Does anybody have any experience with this?

Thank you,

—
Christophe


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[ovirt-users] No OVF Store on Export Domain - normal?

[Christophe TREFOIS]

Hi,

When I attached my NFS export domain to a data center, I see the following 
message in the events log

"The Storage Domain does not contain any OVF_STORE disks. Usually the Storage 
Domain does not contain OVF_STORE disks when the Storage Domain has been 
previously managed with a Data Center version lower then 3.5."

However, the export domain and oVirt have been used below 3.5.

Is this normal behavior for an export domain or is there something I should do 
to fix it?

I can export / import VMs from / to the export domain just fine (until now)

Thank you for your feedback,

--
Christophe
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Re: [ovirt-users] No OVF Store on Export Domain - normal?

[Christophe TREFOIS]

Note, I did mean

"the export domain and ovirt have never been used below 3.5

Thank you for your help,

From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of 
Christophe TREFOIS
Sent: samedi 6 février 2016 15:39
To: users@ovirt.org
Subject: [ovirt-users] No OVF Store on Export Domain - normal?

Hi,

When I attached my NFS export domain to a data center, I see the following 
message in the events log

"The Storage Domain does not contain any OVF_STORE disks. Usually the Storage 
Domain does not contain OVF_STORE disks when the Storage Domain has been 
previously managed with a Data Center version lower then 3.5."

However, the export domain and oVirt have been used below 3.5.

Is this normal behavior for an export domain or is there something I should do 
to fix it?

I can export / import VMs from / to the export domain just fine (until now)

Thank you for your feedback,

--
Christophe
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Re: [ovirt-users] [ovirt-devel] oVirt goes to FOSDEM 2016 - the full scoop!

[Christophe Trefois]

Hi,

Is there an update on the social event?

Kind regards,

--
Trefex

Sent from my iPhone

> On 13 Jan 2016, at 18:03, Doron Fediuck  wrote:
> 
> In the past we had Joop coming with his cool setup.
> We used it in the booth to demo live migration.
> 
> Does anyone wish to do the same this year?
> 
>> On Wed, Jan 6, 2016 at 8:36 PM, Mikey Ariel  wrote:
>> FOSDEM 2016 is just a few short weeks away, and I'm happy to share with you 
>> the full details about our community presence at the conference.
>> 
>> ===
>> Virt & IaaS Devroom
>> ===
>> 
>> Just a reminder that the full schedule is published on the FOSDEM 
>> website[1], and we have some great presentations from our community members 
>> for you to learn from.
>> 
>> ===
>> oVirt/Foreman Stand
>> ===
>> 
>> This year we will share a stand with our friends from the Foreman project. 
>> Stop by to say hello, grab swag, and enjoy some cool demos!
>> 
>> **STAND VOLUNTEERS WANTED**
>> 
>> If you're attending FOSDEM and would like to help us out, we'd love to have 
>> you there! This is a great opportunity to chat about oVirt with FOSDEM 
>> attendees and meet other community members from all over the world.
>> 
>> Special surprise swag is reserved for booth volunteers! Please sign up for 
>> booth shifts in the etherpad[2] (lines 11-33). One of our core contributors 
>> will also be at the booth to support and co-pilot each shift.
>> 
>> ===
>> Social Event on Saturday
>> ===
>> 
>> In previous years, we had informal social gatherings for our community 
>> members on Saturday evening. These evenings are yet another excellent 
>> opportunity to meet and chat with the oVirt community outside the hectic 
>> FOSDEM venue.
>> 
>> This year we'd like to hold an event again if there is enough demand, so 
>> please write your name/IRCnick/Twitter/G+/email in the etherpad[2] (line 86 
>> and down) **by January 15**.
>> 
>> If there is enough interest, we will reserve a nice pub in the center of 
>> Brussels and buy the first round :)
>> 
>> See you in Brussels!
>> 
>> [1] https://fosdem.org/2016/schedule/track/virtualisation_and_iaas/
>> [2] http://etherpad.ovirt.org/p/ovirt-fosdem-2016
>> 
>> -- 
>> Mikey Ariel
>> Community Lead, oVirt
>> www.ovirt.org
>> 
>> "To be is to do" (Socrates)
>> "To do is to be" (Jean-Paul Sartre)
>> "Do be do be do" (Frank Sinatra)
>> 
>> Mobile: +420-702-131-141
>> IRC: mariel / thatdocslady
>> Twitter: @ThatDocsLady
>> ___
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>> de...@ovirt.org
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> 
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Re: [ovirt-users] Graphics protocol SPICE+VNC question

[Christophe TREFOIS]

Hi,

It seems to be a new addition to 3.6

See here: https://bugzilla.redhat.com/show_bug.cgi?id=1033547

Best,

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
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On 07 Jan 2016, at 12:34, Gianluca Cecchi 
<gianluca.cec...@gmail.com<mailto:gianluca.cec...@gmail.com>> wrote:

Hello,
I was navigating through Hosted Engine VM editing in 3.6.1 GUI and actually I 
see that for each VM I have an option called "SPICE+VNC" for Graphics Protocol 
I didn't notice before
Is this new? Does it mean that I can connect with both protocols to a VM 
defined this way?

BTW: can I edit graphics protocol of HE VM in web admin gui and in particular 
can I set it to SPICE+VNC?

Thanks in advance,
Gianluca
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Re: [ovirt-users] How to add faster NIC to oVirt cluser / host?

[Christophe TREFOIS]

Hi Yaniv,

In the best case everything, I would like to replace the 1G with 10G.
The reason is that both NICs are on the same subnet, which would create 
problems then with both active?

My guess is the RX errors are due to the missing gateway?

Currently I can’t reach the p4p1 NIC since the gateway goes through the 1G NIC.

Cheers,

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

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On 10 Jan 2016, at 16:42, Yaniv Kaul 
<yk...@redhat.com<mailto:yk...@redhat.com>> wrote:


On Mon, Jan 4, 2016 at 11:19 PM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
p4p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
inet 10.79.2.254  netmask 255.255.0.0  broadcast 10.79.255.255
inet6 fe80::a236:9fff:fe16:b68c  prefixlen 64  scopeid 0x20
ether a0:36:9f:16:b6:8c  txqueuelen 1000  (Ethernet)
RX packets 2901163  bytes 2803302669 (2.6 GiB)
RX errors 35242  dropped 0  overruns 0  frame 35242

Before you move, I suggest to look at the errors that you have here. On the 1G 
you have transferred far more data without errors.

What would you like to move to the 10g? The storage, migration, VM networks?
Y.


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Re: [ovirt-users] How to add faster NIC to oVirt cluser / host?

[Christophe TREFOIS]

Hi all,

Sorry to pest, but could somebody else help me out with the issue below?

I guess Simone is busy or away.

Thank you for any ideas / hints / explanations.

Kind regards,

—
Christophe


On 04 Jan 2016, at 22:19, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:

Hi Simone,
Hi all,

As additional info, currently my network looks like below and I would like to 
switch from em1 to p4p1 exclusively, or perhaps use em1 as some sort of backup 
or for the management?

2. Also, I’m not sure I understand fundamentally the differences between the 
different Network types (VM, Display, Migration). But that’s more for 
insotmation.

Thank you for any pointers on this,

[root@bio2 ~]# ifconfig
em1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
ether 90:b1:1c:43:49:6f  txqueuelen 1000  (Ethernet)
RX packets 1472870027  bytes 1331937755845 (1.2 TiB)
RX errors 0  dropped 0  overruns 0  frame 0
TX packets 3357243709  bytes 4587955996714 (4.1 TiB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
device interrupt 16

ovirtmgmt: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
inet 10.79.2.2  netmask 255.255.0.0  broadcast 10.79.255.255
inet6 fe80::92b1:1cff:fe43:496f  prefixlen 64  scopeid 0x20
ether 90:b1:1c:43:49:6f  txqueuelen 0  (Ethernet)
RX packets 316189539  bytes 160942658695 (149.8 GiB)
RX errors 0  dropped 8  overruns 0  frame 0
TX packets 302508924  bytes 2879819101719 (2.6 TiB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p4p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
inet 10.79.2.254  netmask 255.255.0.0  broadcast 10.79.255.255
inet6 fe80::a236:9fff:fe16:b68c  prefixlen 64  scopeid 0x20
ether a0:36:9f:16:b6:8c  txqueuelen 1000  (Ethernet)
RX packets 2901163  bytes 2803302669 (2.6 GiB)
RX errors 35242  dropped 0  overruns 0  frame 35242
TX packets 25477  bytes 2190382 (2.0 MiB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@bio2 ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric RefUse Iface
default 10.79.0.1   0.0.0.0 UG0  00 
ovirtmgmt
10.79.0.0   0.0.0.0 255.255.0.0 U 0  00 
ovirtmgmt
link-local  0.0.0.0 255.255.0.0 U 1005   00 p4p1
link-local  0.0.0.0 255.255.0.0 U 1008   0    0 
ovirtmgmt

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
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On 25 Nov 2015, at 12:20, Simone Tiraboschi 
<stira...@redhat.com<mailto:stira...@redhat.com>> wrote:



On Mon, Nov 23, 2015 at 7:29 PM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Dear all,

I have currently a data center with two clusters and each cluster had 1 host.

On one of the hosts, I now enabled 10 GbE NIC called p4p1. Currently everything 
is going over a 1 GbE NIC called em1 (ovirtmgmt).

My question now is, how I could add my 10 GbE NIC to the setup for instance to 
use for transferring data during transmissions to export domain or to simply 
replace the 1 GbE?

You can simply edit the network bindings from the engine:
http://www.ovirt.org/OVirt_Administration_Guide#Editing_Host_Network_Interfaces_and_Assigning_Logical_Networks_to_Hosts

Is up to you to choose if you want just to use the 10 GbE NIC or if you prefer 
to create two distinct logical networks or an active-backup bond of the two 
interfaces.


I prefer little downtime (eg only temp network loss), but a full downtime 
(shutting down) could be acceptable.

Thank you for any pointers or starting points you could provide,

Kind regards,

—
Christophe
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Re: [ovirt-users] How to add faster NIC to oVirt cluser / host?

[Christophe TREFOIS]

I’m a bit weary in re-installing that host as it runs the engine on a shared 
storage locally.

I’ll try to figure out the networking errors first.

Thanks,

From: Yaniv Kaul [mailto:yk...@redhat.com]
Sent: dimanche 10 janvier 2016 19:03
To: Christophe TREFOIS <christophe.tref...@uni.lu>
Cc: Simone Tiraboschi <stira...@redhat.com>; users@ovirt.org
Subject: Re: [ovirt-users] How to add faster NIC to oVirt cluser / host?

On Sun, Jan 10, 2016 at 6:11 PM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Hi Yaniv,

In the best case everything, I would like to replace the 1G with 10G.
The reason is that both NICs are on the same subnet, which would create 
problems then with both active?

Linux isn't very happy when two NICs are on the same subnet, AFAIK, so indeed, 
I would not recommend it.


My guess is the RX errors are due to the missing gateway?

No, those are Ethernet level issues.


Currently I can’t reach the p4p1 NIC since the gateway goes through the 1G NIC.

Makes sense. If possible, I'd change this (routing-wise) and just reinstall the 
host from the oVirt management. That would be the simplest approach.
(but again, I'd do it only after making sure the network is error free).
Y.


Cheers,

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124<tel:%2B352%2046%2066%2044%206124>
F: +352 46 66 44 6949<tel:%2B352%2046%2066%2044%206949>
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On 10 Jan 2016, at 16:42, Yaniv Kaul 
<yk...@redhat.com<mailto:yk...@redhat.com>> wrote:


On Mon, Jan 4, 2016 at 11:19 PM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
p4p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
inet 10.79.2.254  netmask 255.255.0.0  broadcast 10.79.255.255
inet6 fe80::a236:9fff:fe16:b68c  prefixlen 64  scopeid 0x20
ether a0:36:9f:16:b6:8c  txqueuelen 1000  (Ethernet)
RX packets 2901163  bytes 2803302669 (2.6 GiB)
RX errors 35242  dropped 0  overruns 0  frame 35242

Before you move, I suggest to look at the errors that you have here. On the 1G 
you have transferred far more data without errors.

What would you like to move to the 10g? The storage, migration, VM networks?
Y.



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Re: [ovirt-users] How to add faster NIC to oVirt cluser / host?

[Christophe TREFOIS]

Hi Simone,

Just as a follow up on this because I am scared to mess something up.

When I put up p4p1 (10 GbE), I have no route to that IP, and I think it is 
because the default gateway is going through the other NIC.

If I change the ovirtmgmt logical network in the GUI of the engine, I might 
loose connectivity to the engine I suppose.

Is it possible to carry-out this networking change from the host-console that 
runs the engine?

Or do you have any alternative solution where I am able to regain access in 
case the switch to p4p1 would fail?

Thank you,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

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On 25 Nov 2015, at 12:20, Simone Tiraboschi 
<stira...@redhat.com<mailto:stira...@redhat.com>> wrote:



On Mon, Nov 23, 2015 at 7:29 PM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Dear all,

I have currently a data center with two clusters and each cluster had 1 host.

On one of the hosts, I now enabled 10 GbE NIC called p4p1. Currently everything 
is going over a 1 GbE NIC called em1 (ovirtmgmt).

My question now is, how I could add my 10 GbE NIC to the setup for instance to 
use for transferring data during transmissions to export domain or to simply 
replace the 1 GbE?

You can simply edit the network bindings from the engine:
http://www.ovirt.org/OVirt_Administration_Guide#Editing_Host_Network_Interfaces_and_Assigning_Logical_Networks_to_Hosts

Is up to you to choose if you want just to use the 10 GbE NIC or if you prefer 
to create two distinct logical networks or an active-backup bond of the two 
interfaces.


I prefer little downtime (eg only temp network loss), but a full downtime 
(shutting down) could be acceptable.

Thank you for any pointers or starting points you could provide,

Kind regards,

—
Christophe
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Re: [ovirt-users] How to add faster NIC to oVirt cluser / host?

[Christophe TREFOIS]

Hi Simone,
Hi all,

As additional info, currently my network looks like below and I would like to 
switch from em1 to p4p1 exclusively, or perhaps use em1 as some sort of backup 
or for the management?

2. Also, I’m not sure I understand fundamentally the differences between the 
different Network types (VM, Display, Migration). But that’s more for 
insotmation.

Thank you for any pointers on this,

[root@bio2 ~]# ifconfig
em1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
ether 90:b1:1c:43:49:6f  txqueuelen 1000  (Ethernet)
RX packets 1472870027  bytes 1331937755845 (1.2 TiB)
RX errors 0  dropped 0  overruns 0  frame 0
TX packets 3357243709  bytes 4587955996714 (4.1 TiB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
device interrupt 16

ovirtmgmt: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
inet 10.79.2.2  netmask 255.255.0.0  broadcast 10.79.255.255
inet6 fe80::92b1:1cff:fe43:496f  prefixlen 64  scopeid 0x20
ether 90:b1:1c:43:49:6f  txqueuelen 0  (Ethernet)
RX packets 316189539  bytes 160942658695 (149.8 GiB)
RX errors 0  dropped 8  overruns 0  frame 0
TX packets 302508924  bytes 2879819101719 (2.6 TiB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p4p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
inet 10.79.2.254  netmask 255.255.0.0  broadcast 10.79.255.255
inet6 fe80::a236:9fff:fe16:b68c  prefixlen 64  scopeid 0x20
ether a0:36:9f:16:b6:8c  txqueuelen 1000  (Ethernet)
RX packets 2901163  bytes 2803302669 (2.6 GiB)
RX errors 35242  dropped 0  overruns 0  frame 35242
TX packets 25477  bytes 2190382 (2.0 MiB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@bio2 ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric RefUse Iface
default 10.79.0.1   0.0.0.0 UG0  00 
ovirtmgmt
10.79.0.0   0.0.0.0 255.255.0.0 U 0  00 
ovirtmgmt
link-local  0.0.0.0 255.255.0.0 U 1005   00 p4p1
link-local  0.0.0.0 255.255.0.0 U 1008   0    0 
ovirtmgmt

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

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On 25 Nov 2015, at 12:20, Simone Tiraboschi 
<stira...@redhat.com<mailto:stira...@redhat.com>> wrote:



On Mon, Nov 23, 2015 at 7:29 PM, Christophe TREFOIS 
<christophe.tref...@uni.lu<mailto:christophe.tref...@uni.lu>> wrote:
Dear all,

I have currently a data center with two clusters and each cluster had 1 host.

On one of the hosts, I now enabled 10 GbE NIC called p4p1. Currently everything 
is going over a 1 GbE NIC called em1 (ovirtmgmt).

My question now is, how I could add my 10 GbE NIC to the setup for instance to 
use for transferring data during transmissions to export domain or to simply 
replace the 1 GbE?

You can simply edit the network bindings from the engine:
http://www.ovirt.org/OVirt_Administration_Guide#Editing_Host_Network_Interfaces_and_Assigning_Logical_Networks_to_Hosts

Is up to you to choose if you want just to use the 10 GbE NIC or if you prefer 
to create two distinct logical networks or an active-backup bond of the two 
interfaces.


I prefer little downtime (eg only temp network loss), but a full downtime 
(shutting down) could be acceptable.

Thank you for any pointers or starting points you could provide,

Kind regards,

—
Christophe
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Re: [ovirt-users] Ubuntu Repository Key Expired

[Christophe TREFOIS]

Sorry for double posting.

Didn’t see this post until now.
  

> On 03 Jan 2016, at 09:19, ov...@timmi.org wrote:
> 
> Hi List,
> 
> I just noticed that the key for the Ubuntu 14.04 repository is expired.
> 
> pub   2048R/73A1A299 2013-10-24 [expired: 2016-01-02]
> uid  home:evilissimo OBS Project 
> 
> 
> I used the following repository:
> http://www.ovirt.org/How_to_install_the_guest_agent_in_Ubuntu
> 
> Best regards
> Christoph
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[ovirt-users] GPG Key Expired for ovirt-guest-agent

[Christophe TREFOIS]

Dear list,

It seems the key for the 
http://download.opensuse.org/repositories/home:/evilissimo:/ubuntu:/14.04/xUbuntu_14.04/
 repository has expired two days ago.

Could it be updated please?

Thank you,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

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Re: [ovirt-users] Unknown libvirterror - where to start?

[Christophe TREFOIS]

HI michal,

Thanks for the tips. We're now deploying the agents on all VMs (around 60) and 
will see for similar entries in the logs.

Have a nice evening,

--
Christophe

> -Original Message-
> From: Michal Skrivanek [mailto:mskri...@redhat.com]
> Sent: vendredi 6 novembre 2015 14:33
> To: Christophe TREFOIS <christophe.tref...@uni.lu>
> Cc: users@ovirt.org
> Subject: Re: [ovirt-users] Unknown libvirterror - where to start?
> 
> 
> > On 06 Nov 2015, at 13:35, Martin Sivak <msi...@redhat.com> wrote:
> >
> > Hi,
> >
> >> Thread-8108::DEBUG::2015-11-03
> >> 08:47:31,410::libvirtconnection::143::root::(wrapper) Unknown
> >> libvirterror: ecode: 80 edom: 20 level: 2
> >> message: metadata not found: Requested metadata element is not
> >> present
> >
> > we fixed this on vdsm side of oVirt 3.6 too:
> >
> > https://gerrit.ovirt.org/#/c/45799/
> >
> > But Nir is correct. This was just noise, it went away when any QoS was
> > defined for the VM and was not important otherwise.
> >
> >>> VM Channels Listener::DEBUG::2015-11-03
> 08:47:34,386::vmchannels::96::vds::(_handle_timeouts) Timeout on fileno
> 125.
> >> We've seen this as well. I don't think there's a specific bug filed on this
> issue. I wonder if they related.
> 
> nope
> unless there is a ridiculous number of them they are about ovirt agent
> connectivity (which breaks around time of start/stop/migration, etc) but
> normally should not happen, when you run ovirt-guest-agent inside guest
> When you don’t you’ll see it every so often per each VM
> 
> 
> >
> > No relation to the metadata log messages. Can't help here.
> >
> > Best regards
> >
> > --
> > Martin Sivak
> > SLA / oVirt
> >
> >
> > On Fri, Nov 6, 2015 at 1:14 PM, Christophe TREFOIS
> > <christophe.tref...@uni.lu> wrote:
> >> Dear Nir,
> >>
> >> Thank you for your help. I shall ignore the messages then :)
> >>
> >> Kind regards,
> >>
> >> —
> >> Christophe
> >>
> >> Dr Christophe Trefois, Dipl.-Ing.
> >> Technical Specialist / Post-Doc
> >>
> >> UNIVERSITÉ DU LUXEMBOURG
> >>
> >> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE Campus Belval |
> House of
> >> Biomedicine 6, avenue du Swing
> >> L-4367 Belvaux
> >> T: +352 46 66 44 6124
> >> F: +352 46 66 44 6949
> >> http://www.uni.lu/lcsb
> >>
> >>
> >>
> >> 
> >> This message is confidential and may contain privileged information.
> >> It is intended for the named recipient only.
> >> If you receive it in error please notify me and permanently delete the
> original message and any copies.
> >> 
> >>
> >>
> >>
> >>> On 06 Nov 2015, at 12:23, Nir Soffer <nsof...@redhat.com> wrote:
> >>>
> >>> On Tue, Nov 3, 2015 at 10:30 AM, Yaniv Kaul <yk...@redhat.com> wrote:
> >>>> On Tue, Nov 3, 2015 at 9:52 AM, Christophe TREFOIS
> >>>> <christophe.tref...@uni.lu> wrote:
> >>>>>
> >>>>> Hi,
> >>>>>
> >>>>> I checked the logs on my hypervisor that contains also the
> >>>>> overt-engine
> >>>>> (self-hosted) and I see strange unknown libvirterrors that come
> >>>>> periodically in the vdsm.log file. The storage is glusterFS
> >>>>> running on the hypervisor as well, one NFS export domain and an
> >>>>> ISO domain. A NFS domain from another place is in maintenance
> mode.
> >>>>>
> >>>>> I am running oVirt 3.5.3.
> >>>>>
> >>>>> Thank you for any pointers as to where to start fixing this issue.
> >>>>>
> >>>>> — log excerpt --
> >>>>>
> >>>>> Thread-1947641::DEBUG::2015-11-03
> >>>>> 08:47:31,398::stompReactor::163::yajsonrpc.StompServer::(send)
> >>>>> Sending response
> >>>>> Thread-8108::DEBUG::2015-11-03
> >>>>> 08:47:31,410::libvirtconnection::143::root::(wrapper) Unknown
> libvirterror:
> >>>>> ecode: 80 edom: 20 level: 2 message: metadata not found: Requested
> >>>>> metadata element is not present
> >>>>
> >>>>
> >>>> This (depending on your host OS version, 6.x or 7.x) is either
> >>>> https://bugzilla.redhat.com/show_bug.c

[ovirt-users] What is a data center with local storage?

[Christophe TREFOIS]

Hi,

When creating a new data center, in oVirt 3.5 there is the options to have 
“local” or “shared” storage types.

Is there any resource out there that explains the difference between the two? 
The official doc does not really help there.

My current understanding is as follows:

In shared mode, I can create data domains that are shared between hosts in a 
same data center, eg NFS, iSCSI etc.
In lcoal mode, I can only create data domains locally, but I can “import” an 
existing iSCSI or Export domain to move VMs (with downtime) between data 
centers.

1. Is this correct or am I missing something here?
2. What would be the reason to go for a “local” storage type cluster? 

Thank you very much for helping out a newcomer :)
Kind regards,

—
Christophe
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[ovirt-users] How to add faster NIC to oVirt cluser / host?

[Christophe TREFOIS]

Dear all,

I have currently a data center with two clusters and each cluster had 1 host.

On one of the hosts, I now enabled 10 GbE NIC called p4p1. Currently everything 
is going over a 1 GbE NIC called em1 (ovirtmgmt).

My question now is, how I could add my 10 GbE NIC to the setup for instance to 
use for transferring data during transmissions to export domain or to simply 
replace the 1 GbE?

I prefer little downtime (eg only temp network loss), but a full downtime 
(shutting down) could be acceptable.

Thank you for any pointers or starting points you could provide,

Kind regards,

—
Christophe
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Re: [ovirt-users] Unknown libvirterror - where to start?

[Christophe TREFOIS]

Dear Nir,

Thank you for your help. I shall ignore the messages then :)

Kind regards,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.  
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine  
6, avenue du Swing 
L-4367 Belvaux  
T: +352 46 66 44 6124 
F: +352 46 66 44 6949  
http://www.uni.lu/lcsb




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> On 06 Nov 2015, at 12:23, Nir Soffer <nsof...@redhat.com> wrote:
> 
> On Tue, Nov 3, 2015 at 10:30 AM, Yaniv Kaul <yk...@redhat.com> wrote:
>> On Tue, Nov 3, 2015 at 9:52 AM, Christophe TREFOIS
>> <christophe.tref...@uni.lu> wrote:
>>> 
>>> Hi,
>>> 
>>> I checked the logs on my hypervisor that contains also the overt-engine
>>> (self-hosted) and I see strange unknown libvirterrors that come periodically
>>> in the vdsm.log file. The storage is glusterFS running on the hypervisor as
>>> well, one NFS export domain and an ISO domain. A NFS domain from another
>>> place is in maintenance mode.
>>> 
>>> I am running oVirt 3.5.3.
>>> 
>>> Thank you for any pointers as to where to start fixing this issue.
>>> 
>>> — log excerpt --
>>> 
>>> Thread-1947641::DEBUG::2015-11-03
>>> 08:47:31,398::stompReactor::163::yajsonrpc.StompServer::(send) Sending
>>> response
>>> Thread-8108::DEBUG::2015-11-03
>>> 08:47:31,410::libvirtconnection::143::root::(wrapper) Unknown libvirterror:
>>> ecode: 80 edom: 20 level: 2 message: metadata not found: Requested metadata
>>> element is not present
>> 
>> 
>> This (depending on your host OS version, 6.x or 7.x) is either
>> https://bugzilla.redhat.com/show_bug.cgi?id=1220474 or
>> https://bugzilla.redhat.com/show_bug.cgi?id=1260864
>> Y.
> 
> The error about missing metadata is just noise in the log, nothing to
> worry about.
> 
> Adding Martin
> 
>> 
>>> Dummy-1895260::DEBUG::2015-11-03
>>> 08:47:31,477::storage_mailbox::731::Storage.Misc.excCmd::(_checkForMail) dd
>>> if=/rhev/data-center/0002-0002-0002-0002-03d5/mastersd/dom_md/inbox
>>> iflag=direct,fullblock count=1 bs=1024000 (cwd None)
>>> Dummy-1895260::DEBUG::2015-11-03
>>> 08:47:31,501::storage_mailbox::731::Storage.Misc.excCmd::(_checkForMail)
>>> SUCCESS:  = '1+0 records in\n1+0 records out\n1024000 bytes (1.0 MB)
>>> copied, 0.00331278 s, 309 MB/s\n';  = 0
>>> Thread-7913::DEBUG::2015-11-03
>>> 08:47:32,298::libvirtconnection::143::root::(wrapper) Unknown libvirterror:
>>> ecode: 80 edom: 20 level: 2 message: metadata not found: Requested metadata
>>> element is not present
>>> Thread-5682::DEBUG::2015-11-03
>>> 08:47:32,417::libvirtconnection::143::root::(wrapper) Unknown libvirterror:
>>> ecode: 80 edom: 20 level: 2 message: metadata not found: Requested metadata
>>> element is not present
>>> Detector thread::DEBUG::2015-11-03
>>> 08:47:32,591::protocoldetector::187::vds.MultiProtocolAcceptor::(_add_connection)
>>> Adding connection from 127.0.0.1:44671
>>> Detector thread::DEBUG::2015-11-03
>>> 08:47:32,598::protocoldetector::201::vds.MultiProtocolAcceptor::(_remove_connection)
>>> Connection removed from 127.0.0.1:44671
>>> Detector thread::DEBUG::2015-11-03
>>> 08:47:32,599::protocoldetector::247::vds.MultiProtocolAcceptor::(_handle_connection_read)
>>> Detected protocol xml from 127.0.0.1:44671
>>> Detector thread::DEBUG::2015-11-03
>>> 08:47:32,599::BindingXMLRPC::1173::XmlDetector::(handleSocket) xml over http
>>> detected from ('127.0.0.1', 44671)
>>> Thread-1947642::DEBUG::2015-11-03
>>> 08:47:32,602::task::595::Storage.TaskManager.Task::(_updateState)
>>> Task=`1d99a166-cb9a-4025-8211-a48e210b5234`::moving from state init -> state
>>> preparing
>>> Thread-1947642::INFO::2015-11-03
>>> 08:47:32,603::logUtils::44::dispatcher::(wrapper) Run and protect:
>>> repoStats(options=None)
>>> Thread-1947642::INFO::2015-11-03
>>> 08:47:32,603::logUtils::47::dispatcher::(wrapper) Run and protect:
>>> repoStats, Return response: {u'de9eb737-691f-4622-9070-891531d599a0':
>>> {'code': 0, 'actual': True, 'version': 0, 'acquired': True, 'delay':
>>> '0.000373613', 'lastCheck': '2.5', 'valid': True},
>>> u'fe4fd19a-8714-44e0-ae41-663a

Re: [ovirt-users] Unknown libvirterror - where to start?

[Christophe TREFOIS]

Dear Sahina,

I attached the logs from the glusterfs folder.


thank you for your help,

Kind regards,

—
Christophe


On 03 Nov 2015, at 09:04, Sahina Bose 
<sab...@redhat.com<mailto:sab...@redhat.com>> wrote:

Could you also attach the glusterfs and gluster mount logs from the hypervisor? 
(Logs would be at /var/log/glusterfs)

On 11/03/2015 01:22 PM, Christophe TREFOIS wrote:
Hi,

I checked the logs on my hypervisor that contains also the overt-engine 
(self-hosted) and I see strange unknown libvirterrors that come periodically in 
the vdsm.log file. The storage is glusterFS running on the hypervisor as well, 
one NFS export domain and an ISO domain. A NFS domain from another place is in 
maintenance mode.

I am running oVirt 3.5.3.

Thank you for any pointers as to where to start fixing this issue.

— log excerpt --

Thread-1947641::DEBUG::2015-11-03 
08:47:31,398::stompReactor::163::yajsonrpc.StompServer::(send) Sending response
Thread-8108::DEBUG::2015-11-03 
08:47:31,410::libvirtconnection::143::root::(wrapper) Unknown libvirterror: 
ecode: 80 edom: 20 level: 2 message: metadata not found: Requested metadata 
element is not present
Dummy-1895260::DEBUG::2015-11-03 
08:47:31,477::storage_mailbox::731::Storage.Misc.excCmd::(_checkForMail) dd 
if=/rhev/data-center/0002-0002-0002-0002-03d5/mastersd/dom_md/inbox 
iflag=direct,fullblock count=1 bs=1024000 (cwd None)
Dummy-1895260::DEBUG::2015-11-03 
08:47:31,501::storage_mailbox::731::Storage.Misc.excCmd::(_checkForMail) 
SUCCESS:  = '1+0 records in\n1+0 records out\n1024000 bytes (1.0 MB) 
copied, 0.00331278 s, 309 MB/s\n';  = 0
Thread-7913::DEBUG::2015-11-03 
08:47:32,298::libvirtconnection::143::root::(wrapper) Unknown libvirterror: 
ecode: 80 edom: 20 level: 2 message: metadata not found: Requested metadata 
element is not present
Thread-5682::DEBUG::2015-11-03 
08:47:32,417::libvirtconnection::143::root::(wrapper) Unknown libvirterror: 
ecode: 80 edom: 20 level: 2 message: metadata not found: Requested metadata 
element is not present
Detector thread::DEBUG::2015-11-03 
08:47:32,591::protocoldetector::187::vds.MultiProtocolAcceptor::(_add_connection)
 Adding connection from 127.0.0.1:44671
Detector thread::DEBUG::2015-11-03 
08:47:32,598::protocoldetector::201::vds.MultiProtocolAcceptor::(_remove_connection)
 Connection removed from 127.0.0.1:44671
Detector thread::DEBUG::2015-11-03 
08:47:32,599::protocoldetector::247::vds.MultiProtocolAcceptor::(_handle_connection_read)
 Detected protocol xml from 127.0.0.1:44671
Detector thread::DEBUG::2015-11-03 
08:47:32,599::BindingXMLRPC::1173::XmlDetector::(handleSocket) xml over http 
detected from ('127.0.0.1', 44671)
Thread-1947642::DEBUG::2015-11-03 
08:47:32,602::task::595::Storage.TaskManager.Task::(_updateState) 
Task=`1d99a166-cb9a-4025-8211-a48e210b5234`::moving from state init -> state 
preparing
Thread-1947642::INFO::2015-11-03 
08:47:32,603::logUtils::44::dispatcher::(wrapper) Run and protect: 
repoStats(options=None)
Thread-1947642::INFO::2015-11-03 
08:47:32,603::logUtils::47::dispatcher::(wrapper) Run and protect: repoStats, 
Return response: {u'de9eb737-691f-4622-9070-891531d599a0': {'code': 0, 
'actual': True, 'version': 0, 'acquired': True, 'delay': '0.000373613', 
'lastCheck': '2.5', 'valid': True}, u'fe4fd19a-8714-44e0-ae41-663a4b62da7a': 
{'code': 0, 'actual': True, 'version': 0, 'acquired': True, 'delay': 
'0.000409446', 'lastCheck': '6.4', 'valid': True}, 
u'8253a89b-651e-4ff4-865b-57adef05d383': {'code': 0, 'actual': True, 'version': 
3, 'acquired': True, 'delay': '0.000520671', 'lastCheck': '1.8', 'valid': 
True}, 'b18eb29e-8bb1-45b9-a60e-a8e07210e066': {'code': 0, 'actual': True, 
'version': 3, 'acquired': True, 'delay': '0.000424445', 'lastCheck': '6.5', 
'valid': True}}
Thread-1947642::DEBUG::2015-11-03 
08:47:32,603::task::1191::Storage.TaskManager.Task::(prepare) 
Task=`1d99a166-cb9a-4025-8211-a48e210b5234`::finished: 
{u'de9eb737-691f-4622-9070-891531d599a0': {'code': 0, 'actual': True, 
'version': 0, 'acquired': True, 'delay': '0.000373613', 'lastCheck': '2.5', 
'valid': True}, u'fe4fd19a-8714-44e0-ae41-663a4b62da7a': {'code': 0, 'actual': 
True, 'version': 0, 'acquired': True, 'delay': '0.000409446', 'lastCheck': 
'6.4', 'valid': True}, u'8253a89b-651e-4ff4-865b-57adef05d383': {'code': 0, 
'actual': True, 'version': 3, 'acquired': True, 'delay': '0.000520671', 
'lastCheck': '1.8', 'valid': True}, 'b18eb29e-8bb1-45b9-a60e-a8e07210e066': 
{'code': 0, 'actual': True, 'version': 3, 'acquired': True, 'delay': 
'0.000424445', 'lastCheck': '6.5', 'valid': True}}
Thread-1947642::DEBUG::2015-11-03 
08:47:32,603::task::595::Storage.TaskManager.Task::(_updateState) 
Task=`1d99a166-cb9a-4025-8211-a48e210b5234`::moving from state preparing -> 
state finished
Thread-1947642::DEBUG::2015-11-03 
08:47:32,604::resourceManager::940::Storage.ResourceManager.Owner::(releaseAll) 
Owner.releaseAll requests {} resources {}
Thread-1947642::DEBUG::2015-11-03 
08:47:32,60

[ovirt-users] Unknown libvirterror - where to start?

[Christophe TREFOIS]

Hi,

I checked the logs on my hypervisor that contains also the overt-engine 
(self-hosted) and I see strange unknown libvirterrors that come periodically in 
the vdsm.log file. The storage is glusterFS running on the hypervisor as well, 
one NFS export domain and an ISO domain. A NFS domain from another place is in 
maintenance mode.

I am running oVirt 3.5.3.

Thank you for any pointers as to where to start fixing this issue.

— log excerpt --

Thread-1947641::DEBUG::2015-11-03 
08:47:31,398::stompReactor::163::yajsonrpc.StompServer::(send) Sending response
Thread-8108::DEBUG::2015-11-03 
08:47:31,410::libvirtconnection::143::root::(wrapper) Unknown libvirterror: 
ecode: 80 edom: 20 level: 2 message: metadata not found: Requested metadata 
element is not present
Dummy-1895260::DEBUG::2015-11-03 
08:47:31,477::storage_mailbox::731::Storage.Misc.excCmd::(_checkForMail) dd 
if=/rhev/data-center/0002-0002-0002-0002-03d5/mastersd/dom_md/inbox 
iflag=direct,fullblock count=1 bs=1024000 (cwd None)
Dummy-1895260::DEBUG::2015-11-03 
08:47:31,501::storage_mailbox::731::Storage.Misc.excCmd::(_checkForMail) 
SUCCESS:  = '1+0 records in\n1+0 records out\n1024000 bytes (1.0 MB) 
copied, 0.00331278 s, 309 MB/s\n';  = 0
Thread-7913::DEBUG::2015-11-03 
08:47:32,298::libvirtconnection::143::root::(wrapper) Unknown libvirterror: 
ecode: 80 edom: 20 level: 2 message: metadata not found: Requested metadata 
element is not present
Thread-5682::DEBUG::2015-11-03 
08:47:32,417::libvirtconnection::143::root::(wrapper) Unknown libvirterror: 
ecode: 80 edom: 20 level: 2 message: metadata not found: Requested metadata 
element is not present
Detector thread::DEBUG::2015-11-03 
08:47:32,591::protocoldetector::187::vds.MultiProtocolAcceptor::(_add_connection)
 Adding connection from 127.0.0.1:44671
Detector thread::DEBUG::2015-11-03 
08:47:32,598::protocoldetector::201::vds.MultiProtocolAcceptor::(_remove_connection)
 Connection removed from 127.0.0.1:44671
Detector thread::DEBUG::2015-11-03 
08:47:32,599::protocoldetector::247::vds.MultiProtocolAcceptor::(_handle_connection_read)
 Detected protocol xml from 127.0.0.1:44671
Detector thread::DEBUG::2015-11-03 
08:47:32,599::BindingXMLRPC::1173::XmlDetector::(handleSocket) xml over http 
detected from ('127.0.0.1', 44671)
Thread-1947642::DEBUG::2015-11-03 
08:47:32,602::task::595::Storage.TaskManager.Task::(_updateState) 
Task=`1d99a166-cb9a-4025-8211-a48e210b5234`::moving from state init -> state 
preparing
Thread-1947642::INFO::2015-11-03 
08:47:32,603::logUtils::44::dispatcher::(wrapper) Run and protect: 
repoStats(options=None)
Thread-1947642::INFO::2015-11-03 
08:47:32,603::logUtils::47::dispatcher::(wrapper) Run and protect: repoStats, 
Return response: {u'de9eb737-691f-4622-9070-891531d599a0': {'code': 0, 
'actual': True, 'version': 0, 'acquired': True, 'delay': '0.000373613', 
'lastCheck': '2.5', 'valid': True}, u'fe4fd19a-8714-44e0-ae41-663a4b62da7a': 
{'code': 0, 'actual': True, 'version': 0, 'acquired': True, 'delay': 
'0.000409446', 'lastCheck': '6.4', 'valid': True}, 
u'8253a89b-651e-4ff4-865b-57adef05d383': {'code': 0, 'actual': True, 'version': 
3, 'acquired': True, 'delay': '0.000520671', 'lastCheck': '1.8', 'valid': 
True}, 'b18eb29e-8bb1-45b9-a60e-a8e07210e066': {'code': 0, 'actual': True, 
'version': 3, 'acquired': True, 'delay': '0.000424445', 'lastCheck': '6.5', 
'valid': True}}
Thread-1947642::DEBUG::2015-11-03 
08:47:32,603::task::1191::Storage.TaskManager.Task::(prepare) 
Task=`1d99a166-cb9a-4025-8211-a48e210b5234`::finished: 
{u'de9eb737-691f-4622-9070-891531d599a0': {'code': 0, 'actual': True, 
'version': 0, 'acquired': True, 'delay': '0.000373613', 'lastCheck': '2.5', 
'valid': True}, u'fe4fd19a-8714-44e0-ae41-663a4b62da7a': {'code': 0, 'actual': 
True, 'version': 0, 'acquired': True, 'delay': '0.000409446', 'lastCheck': 
'6.4', 'valid': True}, u'8253a89b-651e-4ff4-865b-57adef05d383': {'code': 0, 
'actual': True, 'version': 3, 'acquired': True, 'delay': '0.000520671', 
'lastCheck': '1.8', 'valid': True}, 'b18eb29e-8bb1-45b9-a60e-a8e07210e066': 
{'code': 0, 'actual': True, 'version': 3, 'acquired': True, 'delay': 
'0.000424445', 'lastCheck': '6.5', 'valid': True}}
Thread-1947642::DEBUG::2015-11-03 
08:47:32,603::task::595::Storage.TaskManager.Task::(_updateState) 
Task=`1d99a166-cb9a-4025-8211-a48e210b5234`::moving from state preparing -> 
state finished
Thread-1947642::DEBUG::2015-11-03 
08:47:32,604::resourceManager::940::Storage.ResourceManager.Owner::(releaseAll) 
Owner.releaseAll requests {} resources {}
Thread-1947642::DEBUG::2015-11-03 
08:47:32,604::resourceManager::977::Storage.ResourceManager.Owner::(cancelAll) 
Owner.cancelAll requests {}
Thread-1947642::DEBUG::2015-11-03 
08:47:32,604::task::993::Storage.TaskManager.Task::(_decref) 
Task=`1d99a166-cb9a-4025-8211-a48e210b5234`::ref 0 aborting False
Thread-6348::DEBUG::2015-11-03 
08:47:33,261::libvirtconnection::143::root::(wrapper) Unknown libvirterror: 
ecode: 80 edom: 20 level: 2 

[ovirt-users] VDSM downgrade and GlusterFS question

[Christophe TREFOIS]

Hi,

I have two questions. I have a cluster with 2 nodes, both have local storage, 
one GlusterFS (for future upgrade) and one NFS.

1. I have slightly different versions of KVM and VDSM on both nodes. Can this 
lead to problems? If so, can I downgrade , eg yum history rollback the latest 
updates?

2. On the other host, I have self-hosted oVirt with GlusterFS and am wondering 
what would be the proper workflow to upgrade VDSM and KVM ? Do I have to 
shutdown the storage first? If so, does that mean shutting down all the VMs?

Any help on this topic would be very welcome,

P.s.: I know our setup is not ideal for HA and resilience, but we do with what 
we have :)

—
Christophe
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[ovirt-users] VM status is not shown in webgui after start of VM

[Christophe TREFOIS]

Dear all,

I am running 3.5.2-1.el7.centos on 1 node, self hosted install.

When I start a VM the VM is up (I can connec to it), but the status in the GUI 
becomes “grey” with an up-arrow and the “Launching VM…” task has a sand-clock 
at “Executing”.
Because of this, I can’t really connec to the console, and it just seems weird.

Could you please guide me as to how to debug this problem?

Thanks in advance,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
7, avenue des Hauts-Fourneaux
L-4362 Esch-sur-Alzette
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

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[ovirt-users] Team a NIC and add to ovirtmgmt vNIC

[Christophe TREFOIS]

Dear all,

How I would go about in an existing setup with 1 NIC and 1 vNIC ovirtmgmt, to 
add a second NIC, team them up (bonding) and then assign that one to ovirtmgmt 
without too much downtime?

Does anybody have some experience on that?

Thank you for your help,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEIDINCE
Campus Belval | House of Biomedicine
7, avenue des Hauts-Fourneaux
L-4362 Esch-sur-Alzette
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb

[Facebook]https://www.facebook.com/trefex [Twitter] 
https://twitter.com/Trefex  [Google Plus] 
https://plus.google.com/+ChristopheTrefois/  [Linkedin] 
https://www.linkedin.com/in/trefoischristophe  [skype] 
http://skype:Trefex?call


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Re: [ovirt-users] Maximum VM memory

[Christophe TREFOIS]

Hi Omer,

Especially the last point of your response is a good thing!

I came across the problem as well, when trying to increase a VM to be  16 GB 
and by choosing any other 64 bit template it worked.

Looking forward to these changes,

--
Christophe

-Original Message-
From: Omer Frenkel [mailto:ofren...@redhat.com] 
Sent: dimanche, le 10 mai 2015 14:59
To: Christophe TREFOIS
Cc: users@ovirt.org
Subject: Re: [ovirt-users] Maximum VM memory



- Original Message -
 From: Christophe TREFOIS christophe.tref...@uni.lu
 To: users@ovirt.org
 Sent: Sunday, May 10, 2015 3:17:12 PM
 Subject: [ovirt-users] Maximum VM memory
 
 Dear ovirt users,
 
 We have a special machine which has 1 TB RAM.
 
 The idea is to have 3-4 VMs on there which should be split like 
 85/5/5/5 % of total RAM.
 
 I have three questions:
 
 1. Is there any reason not to put up a VM with so much RAM
 

i don't think there is a problem with that

 2. How can I increase the maximum RAM size for 64 bit VMs?
 

i dont think you need to increase the maximum, max ram for 64bit os should be 
ok for your case with any cluster with compatibility of 3.1 and above (2TiB):
$ engine-config --get VM64BitMaxMemorySizeInMB
VM64BitMaxMemorySizeInMB: 524288 version: 3.0
VM64BitMaxMemorySizeInMB: 2097152 version: 3.1
VM64BitMaxMemorySizeInMB: 2097152 version: 3.2
VM64BitMaxMemorySizeInMB: 2097152 version: 3.3
VM64BitMaxMemorySizeInMB: 4096000 version: 3.4
VM64BitMaxMemorySizeInMB: 4096000 version: 3.5
VM64BitMaxMemorySizeInMB: 4194304 version: 3.6

 3. How can I create a new OS for the VM creation that supports  16 GB ?
 (Right now i have to choose RHEL 64 bits even for Debian systems)
 

please see [1] for customizing guest os information.
please note this bug [2]:
Bug 1218531 - Setting Other OS is default 32bit instead of 64bit and causes 
incorrect RAM size limit of 16GB for 64bit OS. 

should be part of ovirt 3.5.3 where the we change most OS to be 64bit by 
default so most linux distros will be considered 64bit (Linux, debian 7, suse, 
ubuntu..)

[1] http://www.ovirt.org/OS_info#value_overriding
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1218531
 
 Thank you for your help,
 
 —
 Christophe
 
 
 
 
 
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[ovirt-users] Maximum VM memory

[Christophe TREFOIS]

Dear ovirt users,

We have a special machine which has 1 TB RAM.

The idea is to have 3-4 VMs on there which should be split like 85/5/5/5 % of 
total RAM.

I have three questions:

1. Is there any reason not to put up a VM with so much RAM

2. How can I increase the maximum RAM size for 64 bit VMs?

3. How can I create a new OS for the VM creation that supports  16 GB ? (Right 
now i have to choose RHEL 64 bits even for Debian systems)

Thank you for your help,

—
Christophe



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