[ovirt-users] Glusterfs and vm's

[eevans]

I have researched and applied several tweaks to Gluster to improve performance 
but on the vm side, depending on distribution, you can "tweak" the vm for 
better performance on Gluster as well;

yum install tuned.noarch tuned-utils-systemtap.noarch tuned-utils.noarch 
tuned-gtk.noarch -y
(GTK is for a gui if you have one.)

tuned-adm profile virtual-guest

Also, you can increase or decrease cache or swappiness on the host to fit your 
vm's, for workstations or servers. My cache is set to 2048 MB cache and 
swappiness of 10.
Thanks for the help you have given me. 
Eric


This helps RHEL and CentOS machines utilize glusterfs and actually speeds teh 
vm up.
I hope this will help someone. If you want the URL for the article, just ask. 
Also, you can increase or decrease cache or swappiness to fit your vm's, for 
workstations or servers.
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[ovirt-users] Re: hosted-engine /var full

[Pascal D]

For anyone who encounter the same problem I followed this thread and was able 
to recover 15G in my /var. I will be keeping an eye on it from now on.

Thank you Juhani for your help

https://lists.ovirt.org/archives/list/users@ovirt.org/message/HRTNYTZXYCRBNKVOU6DWBVQU6VIL5M7Y/
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[ovirt-users] Re: hosted-engine /var full

[Pascal D]

is it safe to systemctl stop ovirt-engine-dwhd on a running hosted-engine
will running subsequently dwh-vacuum reclaim any space without adding any while 
doing it?
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[ovirt-users] Re: hosted-engine /var full

[Pascal D]

I had to add a file in /etc/ld.conf.d called pgsql.conf with
/opt/rh/rh-postgresql10/root/usr/lib64
to be able to run dwh_vacuum
but that failed too. Maybe not enough room to clean

How do I disable and remove dwh or move it to a different vm?
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[ovirt-users] Fedora CoreOS

[lejeczek via Users]

Hi guys.

From what I gather there is no oVirt for Fedora CoreOS but 
I should ask here at the source - is it there oVirt for that 
OS and if there is not as of now, are the any plans or 
discussion to make that reality?


many thanks, L.
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[ovirt-users] oVirt virtual machines migration 3.6.3 to 4.4.5

[jean-marie . perron]

Hello,

We have a project to migrate from an old oVirt infrastructure (3.6.3) to a new 
one (4.4.5).

The new infrastructure is already in place and we want to migrate the virtual 
machines.

We tried to import the virtual machines via a domain with an NFS mount from the 
old oVirt (import pre-configured domain).
With this domain we only see VM disks and not full virtual machines for import.

Is there a way to transfer the virtual machines from the old oVirt to the new 
one by an NFS mount then import into oVirt Engine or a "copy/paste" virtual 
machine files then import.

Thanks a lot,
JMP
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[ovirt-users] Re: Migration from deprecated OpenStack provider to cinderlib

[Konstantin Shalygin]

Thanks Sandro, wait for Eyal


k

Sent from my iPhone

> On 30 Apr 2021, at 10:03, Sandro Bonazzola  wrote:
> 
> 
> 
>> Il giorno ven 30 apr 2021 alle ore 08:48 Konstantin Shalygin 
>>  ha scritto:
>> Hi Sandro,
>> 
>> The question is - will ovirt plan to provide database migration scripts from 
>> deprecated OpenStack provider to cinderlib? I mean put in survey actual 
>> users and quantity of images in domain
> 
> 
> Moving this question to its own thread.
> +Eyal Shenitzky can you please reply
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[ovirt-users] Re: hosted-engine /var full

[Juhani Rautiainen]

Finding out what table is behind those files is harder. But if you
want to know this should work:
https://www.2ndquadrant.com/en/blog/postgresql-filename-to-table/.

-Juhani

On Fri, May 7, 2021 at 3:35 PM Pascal D  wrote:
>
> Thank you. I tried engine-vacuum but that didn't do anything. I tried also 
> dwh-vacuum but I got libq.si.rh-postgresql10-5 cannot open shared object 
> file. No such file or directory
>
> Those files seem to be growing every day. Not sure what they are for?
>
> -rw---. 1 postgres postgres  436M May  7 05:31 44177767
> -rw---. 1 postgres postgres  437M May  7 05:31 44177812
> -rw---. 1 postgres postgres  438M May  7 05:30 44177398
> -rw---. 1 postgres postgres  445M May  7 05:31 44177805.1
> -rw---. 1 postgres postgres  452M May  7 05:31 4415
> -rw---. 1 postgres postgres  455M May  7 05:31 44177401
> -rw---. 1 postgres postgres  478M May  7 05:31 44177769.2
> -rw---. 1 postgres postgres  486M May  7 05:31 44177734
> -rw---. 1 postgres postgres  498M May  7 05:31 4412
> -rw---. 1 postgres postgres  574M May  7 05:31 4413
> -rw---. 1 postgres postgres  589M May  7 05:31 44177399
> -rw---. 1 postgres postgres  616M May  7 05:31 44177758.1
> -rw---. 1 postgres postgres  702M May  7 05:31 44177814
> -rw---. 1 postgres postgres  776M May  7 05:31 4414
> -rw---. 1 postgres postgres  783M May  7 05:31 44177400
> -rw---. 1 postgres postgres 1010M May  7 05:31 44177394.1
> -rw---. 1 postgres postgres  1.0G Apr 17 03:09 44177805
> -rw---. 1 postgres postgres  1.0G May  7 04:30 44177769.1
> -rw---. 1 postgres postgres  1.0G May  7 04:29 44177769
> -rw---. 1 postgres postgres  1.0G Apr 11 03:08 44177758
> -rw---. 1 postgres postgres  1.0G Apr 28 03:08 44177729
> -rw---. 1 postgres postgres  1.0G Mar 31 03:12 44177394
>
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[ovirt-users] Re: hosted-engine /var full

[Pascal D]

Thank you. I tried engine-vacuum but that didn't do anything. I tried also 
dwh-vacuum but I got libq.si.rh-postgresql10-5 cannot open shared object file. 
No such file or directory

Those files seem to be growing every day. Not sure what they are for?

-rw---. 1 postgres postgres  436M May  7 05:31 44177767
-rw---. 1 postgres postgres  437M May  7 05:31 44177812
-rw---. 1 postgres postgres  438M May  7 05:30 44177398
-rw---. 1 postgres postgres  445M May  7 05:31 44177805.1
-rw---. 1 postgres postgres  452M May  7 05:31 4415
-rw---. 1 postgres postgres  455M May  7 05:31 44177401
-rw---. 1 postgres postgres  478M May  7 05:31 44177769.2
-rw---. 1 postgres postgres  486M May  7 05:31 44177734
-rw---. 1 postgres postgres  498M May  7 05:31 4412
-rw---. 1 postgres postgres  574M May  7 05:31 4413
-rw---. 1 postgres postgres  589M May  7 05:31 44177399
-rw---. 1 postgres postgres  616M May  7 05:31 44177758.1
-rw---. 1 postgres postgres  702M May  7 05:31 44177814
-rw---. 1 postgres postgres  776M May  7 05:31 4414
-rw---. 1 postgres postgres  783M May  7 05:31 44177400
-rw---. 1 postgres postgres 1010M May  7 05:31 44177394.1
-rw---. 1 postgres postgres  1.0G Apr 17 03:09 44177805
-rw---. 1 postgres postgres  1.0G May  7 04:30 44177769.1
-rw---. 1 postgres postgres  1.0G May  7 04:29 44177769
-rw---. 1 postgres postgres  1.0G Apr 11 03:08 44177758
-rw---. 1 postgres postgres  1.0G Apr 28 03:08 44177729
-rw---. 1 postgres postgres  1.0G Mar 31 03:12 44177394

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[ovirt-users] Re: Issue upgrading from 4.3 (Centos 7) to 4.4 (Centos 8)

[Gianluca Cecchi]

On Fri, May 7, 2021 at 2:04 PM Derek Atkins  wrote:

> HI,
>
> On Fri, May 7, 2021 2:55 am, Gianluca Cecchi wrote:
> > On Fri, May 7, 2021 at 2:39 AM Derek Atkins  wrote:
> > [snip]
> >
> >>
> >> *THIS* truly answers my underlying question(s).  I was concerned that
> >> the
> >> engine would be like the node, but this assures me it is not, it's just
> >> a
> >> "faster" way to build the engine VM, but it turns into (effectively) a
> >> standard CentOS+Engine VM post-install...  Which SHOULD be good enough
> >> for
> >> what I want to do!  (I have the engine running a few extra services, and
> >> wanted to make sure I could continue to do so).
> >>
> >>
> > OK.
> > But in the mid term the problem will impact you anyway.
> > What to do after 31/12/2021 with this system, as no new updates from
> > CentOS
> > repos?
>
> Umm, according to
>
> https://www.zdnet.com/article/red-hat-resets-centos-linux-and-users-are-angry/
> which links back to
> https://access.redhat.com/support/policy/updates/errata/#Life_Cycle_Dates
> which claims CentOS 7 will retain support through 2024-06-30.
>
> I think your 2021-12-31 date refers to EL8, not EL7.
>
>
yes, but as the thread was related to upgrade to 4.4 that needs version 8,
I thought you were speaking about it.

Even if version 7 of CentOS is supported through  2024, you are almost not
getting any oVirt based update since June last year when the latest version
of oVirt 4.3.x (4.3.10) has been released.
RH EL for its 7.x version updates doesn't necessarily track
incompatibilities with oVirt packages.
So in my opinion iit s also risky to remain with a frozen 4.3 oVirt
installation and to go with os overall updates for 3 years
I would identify the reasons not allowing to pass to 4.4 and solve them in
the meantime.

YMMV
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[ovirt-users] Re: hosted-engine /var full

[Juhani Rautiainen]

Hi!

Those seem to be Postgres database files. You'll either destroy the
database or cause serious damage to it if you remove them. If you
wan't those cleared you should identify tables that can be trimmed and
then vacuum the database. At first I would try to do a full vacuum of
the databases. This might free some disk space. There should be an
engine-vacuum and a dwh-vacuum commands which do this.

-Juhani

On Fri, May 7, 2021 at 2:53 PM Pascal D  wrote:
>
> I have an issue with my 4.3 hosted-engine. The /var is full. The directory 
> taking 20G is /var/opt/rh/rh-postgresql10/lib/pgsql/data/base/data/16398
>
> some of those files have size over 1GB.  Can they be safely removed?
>
> TIA
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[ovirt-users] Re: Issue upgrading from 4.3 (Centos 7) to 4.4 (Centos 8)

[Derek Atkins]

HI,

On Fri, May 7, 2021 2:55 am, Gianluca Cecchi wrote:
> On Fri, May 7, 2021 at 2:39 AM Derek Atkins  wrote:
> [snip]
>
>>
>> *THIS* truly answers my underlying question(s).  I was concerned that
>> the
>> engine would be like the node, but this assures me it is not, it's just
>> a
>> "faster" way to build the engine VM, but it turns into (effectively) a
>> standard CentOS+Engine VM post-install...  Which SHOULD be good enough
>> for
>> what I want to do!  (I have the engine running a few extra services, and
>> wanted to make sure I could continue to do so).
>>
>>
> OK.
> But in the mid term the problem will impact you anyway.
> What to do after 31/12/2021 with this system, as no new updates from
> CentOS
> repos?

Umm, according to
https://www.zdnet.com/article/red-hat-resets-centos-linux-and-users-are-angry/
which links back to
https://access.redhat.com/support/policy/updates/errata/#Life_Cycle_Dates
which claims CentOS 7 will retain support through 2024-06-30.

I think your 2021-12-31 date refers to EL8, not EL7.

>
> I think in the next months it would be nice to have at least a CentOS -->
> CentOS Stream migration path for the Hosted Engine VM or for an external
> engine that are now based on CentOS

There is no "stream" for EL7.

> Or to confirm that the standard path described at
> https://centos.org/centos-stream/ works also for CentOS systems where
> oVirt
> repos are configured and active and engine packages installed.
> Currently it says:
> dnf swap centos-linux-repos centos-stream-repos
> dnf distro-sync
>
> Gianluca

-derek
-- 
   Derek Atkins 617-623-3745
   de...@ihtfp.com www.ihtfp.com
   Computer and Internet Security Consultant
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[ovirt-users] hosted-engine /var full

[Pascal D]

I have an issue with my 4.3 hosted-engine. The /var is full. The directory 
taking 20G is /var/opt/rh/rh-postgresql10/lib/pgsql/data/base/data/16398

some of those files have size over 1GB.  Can they be safely removed?

TIA
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[ovirt-users] [ANN] Async release for oVirt 4.4.6

[Sandro Bonazzola]

on May 7th 2021 the oVirt project released an async update to the following
packages:

   - ovirt-engine-extension-aaa-ldap-1.4.3
   - ovirt-engine-4.4.6.7

Fixing the following bugs:

   - Bug 1896779  - Unable
   to access LDAP server using IPv6 when both engine and LDAP are configured
   with IPv6 interfaces only, but DNS records for LDAP contains also IPv4
   address
   - Bug 1940138  - AAA
   - IPV6 detection needs to be disabled for LDAP hosts to be recognized
   - Bug 1941541  - ldap
   setup fails to login with connection error when use dns is specified
   - Bug 1950209  - Leaf
   images used by the VM is deleted by the engine during snapshot merge
   - Bug 1957595  - Failed
   to import VM from KVM
   - Bug 1956677 
- Snapshot
   merge fails with null pointer exception.

We are planning an oVirt Node async once libvirt fix for Bug 1953577
 will be available
from CentOS Virtualization SIG.

-- 

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] libvirt crashes / update missing

[Rik Theys]

Hi,

On our hosts, we periodically see libvirt crashes as described in
https://access.redhat.com/solutions/5694061.

https://access.redhat.com/errata/RHSA-2021:1125 (issued April 7) is the
advisory that contains a fix for this issue.

This bug should be fixed in libvirt 6.6.0-13.2 in the "Advanced
Virtualization" repo. When I look at the
ovirt-4.4-advanced-virtualization repo on my hosts, it does not (yet)
contain this update.

Are updates from the Advanced Virtualization repo not automatically
rebuild for CentOS 8.3?

On a CentOS Stream 8 machine, libvirt is version
libvirt-6.0.0-35.module_el8.5.0+746+bbd5d70c.src.rpm.

Installing centos-release-advanced-virtualization adds the Advanced
Virtualization repo file, which then also brings in the 6.6.0-13 version.

When I look at a CentOS 8 stream mirror, for example
http://mirror.kinamo.be/centos/8-stream/virt/x86_64/, I do see the virt
repos with a newer libvirt, but this is not the repo the
centos-release-advanced-virtualization package is using?

What is the recommended setup to use to have this bug fix available?

Regards,

Rik

-- 
Rik Theys
System Engineer
KU Leuven - Dept. Elektrotechniek (ESAT)
Kasteelpark Arenberg 10 bus 2440  - B-3001 Leuven-Heverlee
+32(0)16/32.11.07

<>

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[ovirt-users] Re: Issue upgrading from 4.3 (Centos 7) to 4.4 (Centos 8)

[Gianluca Cecchi]

On Fri, May 7, 2021 at 2:39 AM Derek Atkins  wrote:
[snip]

>
> *THIS* truly answers my underlying question(s).  I was concerned that the
> engine would be like the node, but this assures me it is not, it's just a
> "faster" way to build the engine VM, but it turns into (effectively) a
> standard CentOS+Engine VM post-install...  Which SHOULD be good enough for
> what I want to do!  (I have the engine running a few extra services, and
> wanted to make sure I could continue to do so).
>
>
OK.
But in the mid term the problem will impact you anyway.
What to do after 31/12/2021 with this system, as no new updates from CentOS
repos?

I think in the next months it would be nice to have at least a CentOS -->
CentOS Stream migration path for the Hosted Engine VM or for an external
engine that are now based on CentOS
Or to confirm that the standard path described at
https://centos.org/centos-stream/ works also for CentOS systems where oVirt
repos are configured and active and engine packages installed.
Currently it says:
dnf swap centos-linux-repos centos-stream-repos
dnf distro-sync

Gianluca
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[ovirt-users] Re: [ovirt-announce] oVirt 4.4.6 is now generally available

[Sandro Bonazzola]

Il giorno gio 6 mag 2021 alle ore 18:40 Ryan Bullock  ha
scritto:

> We upgraded from 4.4.5 to 4.4.6, but the Hosted Engine seems to stay on
> CentOS Linux.
>

Yes, existing hosted engine installations are not being upgraded
automatically to CentOS Stream, only oVirt Node is being upgraded to Stream.


> Should we be converting the hosted engine to CentOS Stream?
>

oVirt 4.4.6 has been tested on CentOS Stream but should work completely
fine on CentOS Linux 8.3.
No rush to switch to Stream but yes, switching to Stream is recommende.


>
> Is it safe to follow the procedure at
> https://www.centos.org/centos-stream/ for this?
>

Yes, it's safe.


>
> Thanks,
>
> Regards,
>
> Ryan Bullock.
>
> On Tue, May 4, 2021 at 8:46 AM Lev Veyde  wrote:
>
>> The oVirt project is excited to announce the general availability of
>> oVirt 4.4.6 , as of May 4th, 2021.
>>
>> This release unleashes an altogether more powerful and flexible open
>> source virtualization solution that encompasses hundreds of individual
>> changes and a wide range of enhancements across the engine, storage,
>> network, user interface, and analytics, as compared to oVirt 4.3.
>> Important notes before you install / upgrade
>>
>> Please note that oVirt 4.4 only supports clusters and data centers with
>> compatibility version 4.2 and above. If clusters or data centers are
>> running with an older compatibility version, you need to upgrade them to at
>> least 4.2 (4.3 is recommended).
>>
>> Please note that in RHEL 8 / CentOS 8 several devices that worked on EL7
>> are no longer supported.
>>
>> For example, the megaraid_sas driver is removed. If you use Enterprise
>> Linux 8 hosts you can try to provide the necessary drivers for the
>> deprecated hardware using the DUD method (See the users’ mailing list
>> thread on this at
>> https://lists.ovirt.org/archives/list/users@ovirt.org/thread/NDSVUZSESOXEFJNPHOXUH4HOOWRIRSB4/
>> )
>>
>> Rebase on CentOS Stream
>>
>> Starting with oVirt 4.4.6 both oVirt Node and oVirt Engine Appliance are
>> based on CentOS Stream.
>>
>> You can still install oVirt 4.4.6 on Red Hat Enterprise Linux 8.3,
>> CentOS Linux 8.3 or equivalent but in order to use cluster level 4.6 you’ll
>> have to wait for 8.4 to be available.
>>
>> Please note that existing oVirt Nodes updating to 4.4.6 will
>> automatically be based on CentOS Stream.
>> Documentation
>>
>>-
>>
>>If you want to try oVirt as quickly as possible, follow the
>>instructions on the Download  page.
>>-
>>
>>For complete installation, administration, and usage instructions,
>>see the oVirt Documentation .
>>-
>>
>>For upgrading from a previous version, see the oVirt Upgrade Guide
>>.
>>-
>>
>>For a general overview of oVirt, see About oVirt
>>.
>>
>> What’s new in oVirt 4.4.6 Release?
>>
>> This update is the sixth in a series of stabilization updates to the 4.4
>> series.
>>
>> This release is available now on x86_64 architecture for:
>>
>>-
>>
>>Red Hat Enterprise Linux 8.3
>>-
>>
>>CentOS Linux (or similar) 8.3
>>-
>>
>>CentOS Stream 8
>>
>>
>> This release supports Hypervisor Hosts on x86_64 and ppc64le
>> architectures for:
>>
>>-
>>
>>Red Hat Enterprise Linux 8.3
>>-
>>
>>CentOS Linux (or similar) 8.3
>>-
>>
>>oVirt Node NG (based on CentOS Stream 8)
>>-
>>
>>CentOS Stream
>>
>>
>>
>> oVirt Node and Appliance have been updated, including:
>>
>>-
>>
>>oVirt 4.4.6: https://www.ovirt.org/release/4.4.6/
>>-
>>
>>CentOS Stream 8
>>-
>>
>>Ansible 2.9.20:
>>
>> https://github.com/ansible/ansible/blob/stable-2.9/changelogs/CHANGELOG-v2.9.rst#v2-9-20
>>
>>-
>>
>>Advanced Virtualization 8.4
>>
>>
>>
>> See the release notes [1] for installation instructions and a list of new
>> features and bugs fixed.
>>
>> Notes:
>>
>>-
>>
>>oVirt Appliance is already available for CentOS Stream 8
>>-
>>
>>oVirt Node NG is already available for CentOS Stream 8
>>
>>
>> Additional resources:
>>
>>-
>>
>>Read more about the oVirt 4.4.6 release highlights:
>>https://www.ovirt.org/release/4.4.6/
>>-
>>
>>Get more oVirt project updates on Twitter: https://twitter.com/ovirt
>>-
>>
>>Check out the latest project news on the oVirt blog:
>>https://blogs.ovirt.org/
>>
>>
>> [1] https://www.ovirt.org/release/4.4.6/
>>
>> [2] https://resources.ovirt.org/pub/ovirt-4.4/iso/
>>
>> --
>>
>> Lev Veyde
>>
>> Senior Software Engineer, RHCE | RHCVA | MCITP
>>
>> Red Hat Israel
>>
>> 
>>
>> l...@redhat.com | lve...@redhat.com
>> 
>> TRIED. TESTED. TRUSTED. 
>> ___
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