[ovirt-users] Re: oVirt 4.4.4 not dislaying Sign-on Screen

[Yedidyah Bar David]

On Sat, Feb 27, 2021 at 3:18 AM  wrote:
>
> I’ve install ovirt multiple times with no errors and so far I’ve not been 
> able to get the SSO to display in my Firefox browser.
>
> However thru trial and error I’ve discovered that when I enter the following 
> URL address:
>
> https://localhost:443/ovirt-engine

Generally speaking, this should never work, unless you run your
browser on the engine machine.
Otherwise, name resolution on your browser machine should point
'localhost' to itself.
We also have code that should have warned/asked you about this.

>
> I get the following message below:
>
> The FQDN used to access the system is not a valid engine FQDN. You must 
> access the system using the engine FQDN or one of the engine alternate FQDNs.
> Click here to continue
>
> I’ve installed oVirt 4.4.4 on a standalone machine with no DNS, what can I do 
> to resolve this issue?

In the URL, you should use the same FQDN you provided when asked about
the FQDN of the engine.
If you then replied 'localhost', it should work (despite what I wrote above).

To see which FQDN you provided, you can run the following command on
the engine machine:

grep ^ENGINE_FQDN= /etc/ovirt-engine/engine.conf.d/*

>
> When I click/select the “Continue” link I get the following message:
>
> Having troubles finding this site.
>
> What could I be doing wrong to cause this error to occur?
> What should I be doing during the installation to prevent this from occurring?

See above.

Also:

Generally speaking, you can and should give your machine some name,
and make sure
name resolution for this name works. If you do not have DNS, you can do this
using /etc/hosts. Using 'localhost' is not a good idea, unless you refer to the
local host.

Good luck and best regards,
-- 
Didi
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[ovirt-users] Re: Cant add vm network with vlan to bonded interface

[Ales Musil]

On Mon, Mar 1, 2021 at 7:58 AM  wrote:

> Hello,
>
> I am new to ovirt and try to migrate my companies vmware infra to ovirt.
> The Engine setup went fine without any problems.
> These are the steps which I am doing and having problems.
>
> 1. Prepare the KVM host by installing the RPM's.
> 2. Add the kvm host to the engine. Everything is working fine at this
> point.
> 3. I am creating a new Network for vm usage named VLAN10. And I am tagging
> the network with vlan id 10.
> 4. I am bonding two 25Gb/s interface's with balance-xor mode with the name
> bond1.
> 5. When I add the network VLAN10 to the bond1 interface I cant see the
> logical network assigned to the bond. After this step I am not able to
> delete the bond since I am getting errors when I try to delete the bond.
>
> Any help would be greatly appreciated.
> Thank you
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Hi,

can you please share the error message and version of oVirt?

Thank you.
Regards,
Ales


-- 

Ales Musil

Software Engineer - RHV Network

Red Hat EMEA 

amu...@redhat.comIM: amusil

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[ovirt-users] Right Glusterfs Config on HA Server

[Marcel d'Heureuse]

Hi Guys or Girls,

I have a problem in a productive system. We use three Servers which have 
a Raid 5 with four Harddrives SATA 8 TB 7200 rpms. The Systems are 
interconnected for glusterfs with 1 GB/s.
The Network Load between all three servers are between 5 and 8 % of the 
network. The Glusterfs has a separate VLAN which compltete isolated from 
other networks.


Find attached a small drawing.


On that server we rum as HA and there are 8 VMs installed. Most of the 
VMs working well but if there is high load on the system some of the VM 
can't write the Data in a "good" speed on the disks. The Glusterfs is 
configured as Replica on the Raid5 disk which is as Jbob in Glusterfs 
defiend.


If i take a look on the iostats i can see that the Harddisk have round 
50 open connections some of the glusterfs and a lot of the vms.  In side 
the VMs i can see long iowaiting times from 300 up to 600 ms. With is on 
case of a Posgresql database very long.


Should we configure the Raid5 controller out that the controller only 
should 4 disks with 8 TB and Glusterfs should connect directly to the 
/dev/sd[b-e]?


What do you think? Will SSD HDD will help on performance but the same 
config with Raid5 and Jbod could be the bigger problem.


Thanks
Marcel

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[ovirt-users] Cant add vm network with vlan to bonded interface

[murat . celebi]

Hello,

I am new to ovirt and try to migrate my companies vmware infra to ovirt. The 
Engine setup went fine without any problems. 
These are the steps which I am doing and having problems. 

1. Prepare the KVM host by installing the RPM's. 
2. Add the kvm host to the engine. Everything is working fine at this point. 
3. I am creating a new Network for vm usage named VLAN10. And I am tagging the 
network with vlan id 10. 
4. I am bonding two 25Gb/s interface's with balance-xor mode with the name 
bond1.
5. When I add the network VLAN10 to the bond1 interface I cant see the logical 
network assigned to the bond. After this step I am not able to delete the bond 
since I am getting errors when I try to delete the bond. 

Any help would be greatly appreciated. 
Thank you 
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[ovirt-users] deploy oVirt 4.4 errors

[grig . 4n]

grep ERROR 
/var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20210227232700-gil2fj.log
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9786
2021-02-28 00:00:12,059+0600 ERROR 
otopi.ovirt_hosted_engine_setup.ansible_utils ansible_utils._process_output:109 
ovirtsdk4.ConnectionError: Error while sending HTTP request: (7, 'Failed to 
connect to ovirt4-adm.domain.local port 443: No route to host')
2021-02-28 00:00:12,160+0600 ERROR 
otopi.ovirt_hosted_engine_setup.ansible_utils ansible_utils._process_output:109 
fatal: [localhost]: FAILED! => {"attempts": 50, "changed": false, "msg": "Error 
while sending HTTP request: (7, 'Failed to connect to ovirt4-adm.domain.local 
port 443: No route to host')"}
2021-02-28 00:00:58,055+0600 ERROR 
otopi.ovirt_hosted_engine_setup.ansible_utils ansible_utils._process_output:109 
fatal: [localhost]: FAILED! => {"changed": false, "msg": "The system may not be 
provisioned according to the playbook results: please check the logs for the 
issue, fix accordingly or re-deploy from scratch.\n"}
2021-02-28 00:00:58,759+0600 ERROR otopi.context context._executeMethod:154 
Failed to execute stage 'Closing up': Failed executing ansible-playbook
2021-02-28 00:01:05,984+0600 ERROR 
otopi.ovirt_hosted_engine_setup.ansible_utils ansible_utils._process_output:109 
fatal: [localhost]: UNREACHABLE! => {"changed": false, "msg": "Failed to 
connect to the host via ssh: ssh: connect to host ovirt4-adm.domain.local. port 
22: No route to host", "skip_reason": "Host localhost is unreachable", 
"unreachable": true}
2021-02-28 00:01:22,146+0600 ERROR otopi.plugins.gr_he_common.core.misc 
misc._terminate:167 Hosted Engine deployment failed: please check the logs for 
the issue, fix accordingly or re-deploy from scratch.
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[ovirt-users] oVirt4.1 add host error. can i upgrade from 4.1 to 4.4? without updating sequentially 4.1-4.2-4.3-4.4

[grig . 4n]

HI! 
There is an oVirt 4.1 self-hosted engine cluster of two hosts and a storage 
connected via iscsi. When trying to add another host, it gives an error: "ERROR 
otopi.context context._executeMethod:151 Failed to execute stage 'Setup 
validation': Cannot locate vdsm package, possible cause is incorrect channels". 
Older hosts on Centos 7.5.1804, last on Centos 7.9.2009. Is it possible to go 
from 4.1 to 4.4 using the third host as the main one for the transfer? 
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[ovirt-users] Re: How to enable nested virtualization

[Nathanaël Blanchet]

You  need to reinstall the host after having  enabled the nested feature and 
obviously reboot the host so as it will boot with the new kernel feature.
Le 26 févr. 2021 19:57, miguel.gar...@toshibagcs.com a écrit :


Hi all,

We are trying to run virtual box in a vm that is running over ovirt platform. I 
had followed the instruction to enable nested virtualization on host as 
described in this document 
https://ostechnix.com/how-to-enable-nested-virtualization-in-kvm-in-linux/

However I was not able to enable nested virtualization to the vm since nothing 
is listed from virsh console. Also tryed to edit vm configuration lookig up for 
"cpu mode" or "copy cpu configuration as host"

Also from oVirt admin portal I had enabled host for nested virtualization 
through Compute > Host > selected Host > edit > Kernel Nested virtualization 
checked.

But the host still returns:
$ cat /sys/module/kvm_intel/parameters/nested
N
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[ovirt-users] Re: oVirt Engine increase RAM and CPU

[Strahil Nikolov via Users]

I think that I got such case before (4.2) and the only way I managed to update 
the HE VM was to set the OVF update interval to 1 min and wait for an hour to 
pass.
Best Regards,Strahil Nikolov___
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[ovirt-users] Re: 2 Node oVirt Cluster

[Gilboa Davara]

On Wed, Feb 24, 2021 at 9:08 AM  wrote:
>
> Hey there,
>
> I tried using oVirt for some time now and like to convert my main Proxmox 
> Cluster (2 Nodes + RPI for Quorum) to oVirt. But I obvioulsy need three 
> servers to do HA. Now I am asking myself: can't I just use the PI as an 
> arbiter node for the Selfhosted-Engine on gluster? I tried running the 
> playbook already, but it's always failing and even if the gluster deployment 
> would go through, it would most likely fail aftwards, right?
> Before I waste too much energy and time into that, does anyone of you guys 
> use a 2 node cluster? And no I can't add another node (energy + space + 
> money)!
> Also I know with doing that I'm totally on my own etcetera
>
> Thanks!
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I usually create the gluster shares by hand and then deploy oVirt on
each node using the pre-existing gluster shares.
There's no reason it won't work for you.
That said, I never had  a situation in which one of the gluster
members isn't also a member of the oVirt cluster.

Oh, which RPI is it? Are you sure its networking is up to the task?
(RPI3 has a terrible NIC, RPI4 isn't much better).

- Gilboa
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[ovirt-users] Right Glusterfs Config on HA Server

[Marcel d'Heureuse]

Hi Guys or Girls,

I have a problem in a productive system. We use three Servers which have 
a Raid 5 with four Harddrives SATA 8 TB 7200 rpms. The Systems are 
interconnected for Glusterfs with 1 GB/s.
The Network Load between all three servers are between 5 and 8 % of the 
network. The Glusterfs has a separate VLAN which complete isolated from 
other networks.


Find attached a small drawing.


On that server we rum as HA and there are 8 VMs installed. Most of the 
VMs working well but if there is high load on the system some of the VM 
can't write the Data in a "good" speed on the disks. The Glusterfs is 
configured as Replica on the Raid5 disk which is as Jbob in Glusterfs 
defined.


If i take a look on the iostats i can see that the Harddisk have round 
50 open connections some of the glusterfs and a lot of the vms.  In side 
the VMs i can see long iowaiting times from 300 up to 600 ms. With is on 
case of a Posgresql database very long.


Should we configure the Raid5 controller out that the controller only 
should 4 disks with 8 TB and Glusterfs should connect directly to the 
/dev/sd[b-e]?


What do you think? Will SSD HDD will help on performance but the same 
config with Raid5 and Jbod could be the bigger problem.


Thanks
Marcel
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[ovirt-users] Re: oVirt Node install with Foreman VG issue

[simon]

Thanks Strahil,  Unfortunately changing the filter is done after the initial 
install.  We manually partition sda so that sdb isn’t touched during install.  
The issues with multipath grabbing sdb are ongoing with a possible manual fix 
being tested now.  Testing has paused at the moment as we have lost gluster on 
the arbiter node as per 
https://lists.ovirt.org/archives/list/users@ovirt.org/thread/U64MGWSUCFJR... 
which looks like a full oVirt rebuild again.  Any help on that thread would be 
appreciated.

Thanks again

Shimme
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[ovirt-users] Re: oVirt Node install with Foreman VG issue

[Simon Scott]


Thanks Strahil,

Unfortunately changing the filter is done after the initial install.

We manually partition sda so that sdb isn’t touched during install.

The issues with multipath grabbing sdb are ongoing with a possible manual fix 
being tested now.

Testing has paused at the moment as we have lost gluster on the arbiter node as 
per 
https://lists.ovirt.org/archives/list/users@ovirt.org/thread/U64MGWSUCFJRIVAH5EOFCQFVIPZI77PL/
 which looks like a full oVirt rebuild again.

Any help on that thread would be appreciated.

Thanks again

Shimme

On 28 Feb 2021, at 08:35, Strahil Nikolov  wrote:

Most probably there is an LVM filter.
As stated in the /etc/multipath.conf , use a special file to blacklist the 
local disks without modifying /etc/multipath.conf

Best Regards,
Strahil Nikolov

Hi All,

I have a server with a RAID1 disk for sda and RAID 5 disk for sdb.

Following default install, prior to Cockpit Gluster and Engine wizards there is 
only a single Volume Group which doesn’t allow me to continue.

If I manually configure the install and deselect sdb it gives other issues with 
multipath but at least I can resolve those.

Is there a specific kickstart confuguration that should be used?

Kind Regards

Shimme
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[ovirt-users] Re: oVirt Node install with Foreman VG issue

[Strahil Nikolov via Users]

Most probably there is an LVM filter.As stated in the /etc/multipath.conf , use 
a special file to blacklist the local disks without modifying 
/etc/multipath.conf
Best Regards,Strahil Nikolov
 
 
Hi All,

I have a server with a RAID1 disk for sda and RAID 5 disk for sdb.

Following default install, prior to Cockpit Gluster and Engine wizards there is 
only a single Volume Group which doesn’t allow me to continue.

If I manually configure the install and deselect sdb it gives other issues with 
multipath but at least I can resolve those.

Is there a specific kickstart confuguration that should be used?

Kind Regards

Shimme
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[ovirt-users] Re: Add single node to running gluster cluster

[Strahil Nikolov via Users]

Gluster doesn't work with servers but bricks.
Brick is a term for a server + mountpoint combination.
If you wish to expand your gluster volume -> you have to do it via replica 
sets.replica 3 volume -> 3 bricks
So, yes you can have 4 servers and all be part of gluster, but you need extra 
bricks.
Best Regards,Strahil Nikolov
 
 
Thanks for this information. I guess I follow the same way of the first 
three nodes to add the next three one.

But, sorry if I say something stupid, but why 3 by 3 ?
My replication (default btw) is to keep 3 copies. If I add a node, he can keep 
3 copies over 4 nodes no ? And same when there are 5 and more nodes.

I don't understand this point, if you have a explanation or a documentation 
about it, I'm more than interrested

Thanks
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