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oVirt 4.5.2 /var growing rapidly due to ovirt_engine_history db
by sohail_akhter3＠hotmail.com 05 Oct '22

05 Oct '22

Hi, We have recently upgrade our oVirt environment to 4.5.2 version. Environment is based on hosted-engine. Since we have upgrade we noticed rapid incrase in /var partition in engine VM. It is increasing very rapidly. If we vacuum ovirt_engine_history db, /var size reduces but next day size will increase again upto 5-10%. We did db vacuuming couple of time but not sure we it is increasing so rapidly. Here is the partial output of vacuuming that was done on 26-08-22. Table "host_interface_hourly_history" had more entries to be removed. Rest of the table had not much entries. Previously table "host_interface_samples_history" had entries to be removed. Any Idea what can be the reason for that? # dwh-vacuum -f -v SELECT pg_catalog.set_config('search_path', '', false); vacuumdb: vacuuming database "ovirt_engine_history" RESET search_path; SELECT c.relname, ns.nspname FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace ns ON c.relnamespace OPERATOR(pg_catalog.=) ns.oid LEFT JOIN pg_catalog.pg_class t ON c.reltoastrelid OPERATOR(pg_catalog.=) t.oid WHERE c.relkind OPERATOR(pg_catalog.=) ANY (array['r', 'm']) ORDER BY c.relpages DESC; SELECT pg_catalog.set_config('search_path', '', false); VACUUM (FULL, VERBOSE) public.host_interface_samples_history; INFO: vacuuming "public.host_interface_samples_history" INFO: "host_interface_samples_history": found 3135 removable, 84609901 nonremovable row versions in 1564960 pages DETAIL: 0 dead row versions cannot be removed yet. CPU: user: 41.88 s, system: 14.93 s, elapsed: 422.83 s. VACUUM (FULL, VERBOSE) public.host_interface_hourly_history; INFO: vacuuming "public.host_interface_hourly_history" INFO: "host_interface_hourly_history": found 252422 removable, 39904650 nonremovable row versions in 473269 pages Please let me know if any further information is required. Regards Sohail

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Re: Export to Data Domain (with TPM)
by Milan Zamazal 05 Oct '22

05 Oct '22

Christopher Law <chris(a)chrislaw.me> writes: > Anyone explain why I can't export a Virtual Machine with a TPM? Is > this something to do with the TPM data? I'm exporting the VM to some > cold storage. What's the deal here how can I export it and keep the > TPM data or do I have to disable TPM on it first? > > oVirt Error message when trying to export a VM to a Data Domain that has a TPM. > Export VM Failed > Cannot add VM. TPM device is required by the guest OS Hi, it is a Windows VM, right? It is a bug, I filed https://github.com/oVirt/ovirt-engine/issues/702 . The export should work. A workaround could be temporarily switching the VM operating system in the VM properties to Red Hat Enterprise Linux 9 before exporting but I'm not sure it won't change some other VM properties, be careful if you attempt it. Regards, Milan

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Export to Data Domain (with TPM)
by Christopher Law 04 Oct '22

04 Oct '22

Hi - Anyone explain why I can't export a Virtual Machine with a TPM? Is this something to do with the TPM data? I'm exporting the VM to some cold storage. What's the deal here how can I export it and keep the TPM data or do I have to disable TPM on it first? oVirt Error message when trying to export a VM to a Data Domain that has a TPM. Export VM Failed Cannot add VM. TPM device is required by the guest OS Cheers, Chris.

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Notified that Engine's certification is about to expire but no documentation to renew it
by Guillaume Pavese 04 Oct '22

04 Oct '22

Hello We are receiving the following notifications from our ovirt manager : Message:Engine's certification is about to expire at 2022-05-03. Please renew the engine's certification. Severity:WARNING Effectively : # openssl x509 -in /etc/pki/ovirt-engine/certs/engine.cer -startdate -enddate -noout notBefore=Mar 30 04:48:15 2021 GMT notAfter=May 3 04:48:15 2022 GMT However I can not find any documentation on how to renew this certificate. The following doc only convers changing apache-ca.pem & apache.cer, and not engine.cer Doc oVirt : https://ovirt.org/documentation/administration_guide/index.html#Replacing_t… Doc RHV : https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/ht… Any help ? Guillaume Pavese Ingénieur Système et Réseau Interactiv-Group -- Ce message et toutes les pièces jointes (ci-après le “message”) sont établis à l’intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le détruire et d’en avertir immédiatement l’expéditeur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L’internet ne permettant pas d’assurer l’intégrité de ce message . Interactiv-group (et ses filiales) décline(nt) toute responsabilité au titre de ce message, dans l’hypothèse ou il aurait été modifié. IT, ES, UK. <https://interactiv-group.com/disclaimer.html>

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Issue with disk import and disk upload - ovirt 4.5.2
by Proniakin Marcin 04 Oct '22

04 Oct '22

Hello, After upgrading ovirt to version 4.5.2, I've experienced issue with using import function in import disk window in storage domain after attaching it to data center. Logs in the attachment (#1). Second issue is with uploading disks from storage domain window. Using example from attachment (#2): When choosing to upload disk to domain portal-1 from upload function in the storage domain disk window, ovirt chooses wrong data-center dev-1 (dev-1 datacenter has domain dev-1, portal-1 datacenter has domain portal-1) and wrong host to upload. Accepting this upload always fails. When choosing to upload disk from storage -> disks window works fine. Issues confirmed on two independent ovirt servers (both with version 4.5.2). Spółki Grupy Wirtualna Polska: Wirtualna Polska Holding Spółka Akcyjna z siedzibą w Warszawie, ul. Żwirki i Wigury 16, 02-092 Warszawa, wpisana do Krajowego Rejestru Sądowego - Rejestru Przedsiębiorców prowadzonego przez Sąd Rejonowy dla m.st. Warszawy w Warszawie pod nr KRS: 0000407130, kapitał zakładowy: 1 461 895,65 zł (w całości wpłacony), Numer Identyfikacji Podatkowej (NIP): 521-31-11-513 Wirtualna Polska Media Spółka Akcyjna z siedzibą w Warszawie, ul. Żwirki i Wigury 16, 02-092 Warszawa, wpisana do Krajowego Rejestru Sądowego - Rejestru Przedsiębiorców prowadzonego przez Sąd Rejonowy dla m.st. Warszawy w Warszawie pod nr KRS: 0000580004, kapitał zakładowy: 320 058 550,00 zł (w całości wpłacony), Numer Identyfikacji Podatkowej (NIP): 527-26-45-593 Administratorem udostępnionych danych osobowych jest Wirtualna Polska Media S.A. z siedzibą w Warszawie (dalej "WPM"). WPM przetwarza Twoje dane osobowe, które zostały podane przez Ciebie dobrowolnie w trakcie dotychczasowej współpracy, w związku z zawarciem umowy lub zostały zebrane ze źródeł powszechnie dostępnych, w szczególności: imię i nazwisko, adres email, numer telefonu. Przetwarzamy te dane w celach opisanych w polityce prywatności<https://onas.wp.pl/poufnosc.html>, między innymi w celu realizacji współpracy, realizacji obowiązków przewidzianych prawem, w celach marketingowych WP. Podstawą prawną przetwarzania Twoich danych osobowych w celach marketingowych jest prawnie uzasadniony interes jakim jest m.in. przesyłanie informacji marketingowych o usługach WP, w tym zaproszeń na konferencje branżowe, informacje o publikacjach. Twoje dane możemy przekazywać podmiotom przetwarzającym je na nasze zlecenie oraz podmiotom uprawnionym do uzyskania danych na podstawie obowiązującego prawa. Masz prawo m.in. do żądania dostępu do danych, sprostowania, usunięcia lub ograniczenia ich przetwarzania, jak również prawo do zgłoszenia sprzeciwu w przewidzianych w prawie sytuacjach. Prawa te oraz sposób ich realizacji opisaliśmy w polityce prywatności<https://onas.wp.pl/poufnosc.html>. Tam też znajdziesz informacje jak zakomunikować nam Twoją wolę skorzystania z tych praw.

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noVNC console doesn't work.
by Jirka Simon 04 Oct '22

04 Oct '22

Hello there, after update from 4.5.2.4 to 4.5.2.5 stopped to work noVNC client within browser, it writes Something went wrong, connection is closed in browser and then i th engine log is this message. 2022-10-03 13:34:55,772+02 INFO [org.ovirt.engine.core.utils.servlet.ServletUtils] (default task-13) [] Can't read file '/usr/share/ovirt-engine/files/novnc/vendor/promise.js' for request '/ovirt-engine/services/files/novnc/vendor/promise.js' -- 404 thank k you for any advice. Jirka

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Local and remote storage
by Murilo Morais 04 Oct '22

04 Oct '22

Good evening everyone. Guys, I have two machines that use oVirt, I managed to put CephFS as a storage domain and everything is working perfectly, but on these two machines there are 4 NVMe on each, I would like to know if there is any possibility or any way to use their local storage? I don't care if the host dies and I don't get the VM up on the other, as it would be for very specific cases, so there's no problem with that.

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Creating an oVirt Engine Appliance on a different EL Distro (eg Rocky Linux)
by Matthew J Black 03 Oct '22

03 Oct '22

Hi All, Here's an interesting question: What is the process (ie the Step-By-Step process) to create an/the oVirt Engine Appliance based on another version of EL (ie in my case, Rocky Linux)? Is there a "Manual" somewhere? I mean, surely the oVirt Project's Release Manager has *something* that they follow to create the relevant rpm file - no? Cheers Dulux-Oz

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ovirt-engine-appliance Location (Pre-Installation)
by Matthew J Black 03 Oct '22

03 Oct '22

Hi All, A couple of Qs: During the `TASK [ovirt.ovirt.engine_setup : Install oVirt Engine package]` stage of the Management Engine deployment, is this trying to install the ovirt-engine-appliance, or something else? When we do a pre-install of the ovirt-engine-appliance (ie dnf install ovirt-engine-appliance) where is this installed too, so that we can enter this information into the deployment script at the `Engine Appliance Image Path` stage? Cheers Dulux-Oz

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Totally outstanding disk performance
by murilo＠evocorp.com.br 01 Oct '22

01 Oct '22

Good evening everyone. I'm implementing oVirt in my infrastructure using Ceph as Storage (I'm using 10 Gibabits interfaces), I managed to raise the Storage correctly, reaching rates of 1.2 Gigabytes per second via NFS. When I went to depoy the hosted-engine via NFS, everything went fine, but when I booted the first VM and tested the disk's performance, I got very low rates. Depending on how I'm writing to disk, I get rates of only 88 Megabytes per second, far below what was expected. Through FIO I get approximately 250 Megabytes per second, which is still quite low compared to what I can get via NFS on the same Host. I've already tried some Disk Cache configurations and tried to put CephFS as Storage Domain, but I always achieve the same rate, always with the IOPS quite low. Is there anything else I can do to try to improve these rates? Because I'm finding this quite weird considering how much data I can reach between the Host and Storage.

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