[ovirt-users] Re: New failure Gluster deploy: Set granual-entry-heal on --> Bricks down

[Ritesh Chikatwar]

Hello,

Can you try once cleaning the gluster deployment you can do this by running
this command on one of the hosts.

ansible-playbook
/etc/ansible/roles/gluster.ansible/playbooks/hc-ansible-deployment/tasks/gluster_cleanup.yml
-i /etc/ansible/hc_wizard_inventory.yml

And then rerun the Ansible flow.

On Sat, Jan 9, 2021 at 12:00 PM Strahil Nikolov via Users 
wrote:

> What is the output of 'rpm -qa | grep vdo' ?
> Most probably the ansible flow is not deploying kvdo , but it's necessary
> at a later stage.Try to overcome via "yum search kvdo" and then 'yum
> install kmod-kvdo" (replace kmod-kvdo with the package for EL8).
>
> Also, I think that you can open a github issue at
> https://github.com/oVirt/ovirt-ansible-engine-setup/issues
>
> Best Regards,
> Strahil Nikolov
>
>
>
>
>
>
> В събота, 9 януари 2021 г., 01:24:56 Гринуич+2, Charles Lam <
> clam2...@gmail.com> написа:
>
>
>
>
>
> Dear Strahil,
>
> I have rebuilt everything fresh, switches, hosts, cabling - PHY-SEC shows
> 512 for all nvme drives being used as bricks.  Name resolution via
> /etc/hosts for direct connect storage network works for all hosts to all
> hosts.  I am still blocked by the same
>
> "vdo: ERROR - Kernel module kvdo not installed\nvdo: ERROR - modprobe:
> FATAL: Module
> kvdo not found in directory /lib/modules/4.18.0-240.1.1.el8_3.x86_64\n"
>
> Any further suggestions are MOST appreciated.
>
> Thank you and respectfully,
>
> Charles
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[ovirt-users] Re: New failure Gluster deploy: Set granual-entry-heal on --> Bricks down

[Strahil Nikolov via Users]

What is the output of 'rpm -qa | grep vdo' ?
Most probably the ansible flow is not deploying kvdo , but it's necessary at a 
later stage.Try to overcome via "yum search kvdo" and then 'yum install 
kmod-kvdo" (replace kmod-kvdo with the package for EL8).

Also, I think that you can open a github issue at 
https://github.com/oVirt/ovirt-ansible-engine-setup/issues

Best Regards,
Strahil Nikolov 






В събота, 9 януари 2021 г., 01:24:56 Гринуич+2, Charles Lam 
 написа: 





Dear Strahil,

I have rebuilt everything fresh, switches, hosts, cabling - PHY-SEC shows 512 
for all nvme drives being used as bricks.  Name resolution via /etc/hosts for 
direct connect storage network works for all hosts to all hosts.  I am still 
blocked by the same 

"vdo: ERROR - Kernel module kvdo not installed\nvdo: ERROR - modprobe: FATAL: 
Module
kvdo not found in directory /lib/modules/4.18.0-240.1.1.el8_3.x86_64\n"

Any further suggestions are MOST appreciated.

Thank you and respectfully,

Charles
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[ovirt-users] Re: New failure Gluster deploy: Set granual-entry-heal on --> Bricks down

[Charles Lam]

Dear Strahil,

I have rebuilt everything fresh, switches, hosts, cabling - PHY-SEC shows 512 
for all nvme drives being used as bricks.  Name resolution via /etc/hosts for 
direct connect storage network works for all hosts to all hosts.  I am still 
blocked by the same 

"vdo: ERROR - Kernel module kvdo not installed\nvdo: ERROR - modprobe: FATAL: 
Module
kvdo not found in directory /lib/modules/4.18.0-240.1.1.el8_3.x86_64\n"

Any further suggestions are MOST appreciated.

Thank you and respectfully,
Charles
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[ovirt-users] [ANN] Async release for ovirt-engine is now available

[Sandro Bonazzola]

The oVirt Team has just released a new version of ovirt-engine package
(4.4.4.7) that
fixes a few important bugs:
 - [BZ 1894454](https://bugzilla.redhat.com/1894454) - VM fails to boot
when moved to a cluster with a different chipset
 - [BZ 1908643](https://bugzilla.redhat.com/1908643) - ovirt-backend
contains jar that should not be there
 - [BZ 1576923](https://bugzilla.redhat.com/1576923) - RFE: Ability to move
master role to another domain without putting the domain to maintenance
 - [BZ 1911597](https://bugzilla.redhat.com/1911597) - Block manually
switch master domain for Gluster domains

fixes also security issue:
CVE-2020-35497 (
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35497)  - Moderate
- ovirt-engine: non-admin user is able to access other users public SSH key

-- 

Sandro Bonazzola

MANAGER, SOFTWARE ENGINEERING, EMEA R RHV

Red Hat EMEA 

sbona...@redhat.com


*Red Hat respects your work life balance. Therefore there is no need to
answer this email out of your office hours.*
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[ovirt-users] Re: 2021 first ovirt network question

[carl langlois]

Hi,

Let me share our experience with VDI and spice. First I do not have a
solution to make the spice server more reactive.
Here is our current infra:
12 hosts with Xeon processor with 10G port and a couple of hundreds of
memory per host.
This runs around 55 VMs 40 of them are servers vms and 15 desktops VMs .
running Ubuntu/Windows
The desktop vms are accessed from a Windows machine on a 1G network.
Laggy for us is if we move a window and the mouse does not precisely move
with the windows then it is laggy.

So with our current  setup spice server is not usable. The offset of the
mouse vs windows is a couple a inches. It is like moving a window attached
to an elastic band.
RDP to a windows vm is snappy.
RDP to a xrdp server on Ubuntu running Gnome is laaagy.
The only usable remote desktop protocol we are able to use is
Xpra and the NX protocol.

Xpra in seamless mode is by far the snapiest and faster protocol. The
problem with Xpra is some stability issues.  But the support from the dev
is amazing.
The NX protocol is also a good choice. The x2go variant is a good seamless
option. It is as fast as Xpra but the Xpra has a sharper rendering.
There is also nomachine software( creator of the NX protocol) that has the
best desktop experience. I think you can try it for free for 30 days and
the licencing is not that expensive.

I always ask myself the question why RDP on windows is way better than the
other options. Even the xrdp server is no match even using the same windows
client. Is this related to the windows env.(i.e gnome) or the Xserver..

 So if you find a way to make the spice server more snappy i would like to
know.

Maybe a seamless mode for spice server could help.
Regards.













On Fri, Jan 8, 2021 at 12:05 AM  wrote:

> OK, meybe it's not the network issue.
> So, can you offer me a specific guide/way to increase spice server
> performance?
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[ovirt-users] Re: QEMU error qemuDomainAgentAvailable in /var/log/messages

[souvaliotimaria]

Thank you very much for your answer.

The service is up and running in the engine but it is only loaded on the nodes. 
Should I start it (enabling also?) on the nodes to?

There is one VM that I have not installed the guest agent on and it is running 
on the arbitrary host.

Also, about the snapshots and backup, you mean the built-in ovirt capabilities 
or an external backup/snapshot program also?

Thank you again 
Maria 
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[ovirt-users] Re: [ovirt-devel] CentOS Stream support

[Sandro Bonazzola]

Il giorno mar 5 gen 2021 alle ore 17:12 lejeczek via Users 
ha scritto:

> Hi guys,
>
> Is supported and save to transition with > 4.4 to Centos
> Stream, now when "Stream" is the only way to the future? Any
> knows for certain?
>

We moved oVirt Node and oVirt Appliance to CentOS Stream for the next
(oVirt 4.4.5) release.
Help testing current master and 4.4.5 release candidates will help ensure
it's stable for production.


>
> regards, L.
>
> On 05/06/2020 09:34, Michal Skrivanek wrote:
> > Hi all,
> > we would like to ask about interest in community about oVirt moving to
> CentOS Stream.
> > There were some requests before but it’s hard to see how many people
> would really like to see that.
> >
> > With CentOS releases lagging behind RHEL for months it’s interesting to
> consider moving to CentOS Stream as it is much more up to date and allows
> us to fix bugs faster, with less workarounds and overhead for maintaining
> old code. E.g. our current integration tests do not really pass on CentOS
> 8.1 and we can’t really do much about that other than wait for more up to
> date packages. It would also bring us closer to make oVirt run smoothly on
> RHEL as that is also much closer to Stream than it is to outdated CentOS.
> >
> > So..would you like us to support CentOS Stream?
> > We don’t really have capacity to run 3 different platforms, would you
> still want oVirt to support CentOS Stream if it means “less support” for
> regular CentOS?
> > There are some concerns about Stream being a bit less stable, do you
> share those concerns?
> >
> > Thank you for your comments,
> > michal
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-- 

Sandro Bonazzola

MANAGER, SOFTWARE ENGINEERING, EMEA R RHV

Red Hat EMEA 

sbona...@redhat.com


*Red Hat respects your work life balance. Therefore there is no need to
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*
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[ovirt-users] Re: not able to upload disks, iso - Connection to ovirt-imageio service has failed. Ensure that ovirt-engine certificate is registered as a valid CA in the browser.

[Vojtech Juranek]

Hi,

> We are unning with 4.4.3.12-1.el8 version and so far working fine, but today
> users complained they are unable to upload new disks and upon checking
> found "Connection to ovirt-imageio service has failed. Ensure that
> ovirt-engine certificate is registered as a valid CA in the browser" during
> testing option. please help on this and if there is any temp solution is
> available share me the steps

if you want to upload imgaes from browser, you have to import certificates into 
the *browser*.
So follow the link, download the certificate and import it into the browser as 
a trusted. I.e. this
is related to browser configuration, not oVirt configuration. See [1, 2] for 
more details.

Alternatively, you can upload image using upload_disk example script from 
ovirt-engine-sdk [3], e.g.

curl -k 
"https://$ENGINE_URL/ovirt-engine/services/pki-resource?resource=ca-certificate=X509-PEM-CA;
 > cert.pem
./upload_disk.py --insecure --engine-url $ENGINE_URL --username 
admin@internal --password-file $PASSWD_FILE --disk-format raw --sd-name 
$STORAGE_DOMAIN_NAME -c cert.pem $PATH_TO_IMAGE

HTH
Vojta

[1] Browser configuration section in 
http://ovirt.github.io/ovirt-imageio/configuration.html
[2] https://www.ovirt.org/develop/release-management/features/infra/pki.html
[3] 
https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/upload_disk.py

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