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01 Jun '22

Hello all For Updates to the oVirt Node hosts I have seen two options in the documentation: - https://ovirt.org/documentation/administration_guide/index.html#Updating_al… - https://ovirt.org/documentation/administration_guide/index.html#Updating_In… Does anyone here have experiences with one or the other strategy or any recommendation of one over the other? I would like to update the hosts in intervals and not all at once, but as far as I understand it is only possible to update to the latest packages at the time of the update. Or is there a way to define something like a baseline for nodes using oVirt Engine? Thank you for your valuable input! Jonas

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New Template dialog, clicking OK in one environment results in template creation, the other environment does nothing.
by mblecha＠flagshipbio.com 01 Jun '22

01 Jun '22

We have two oVirt environments configured, one for our Lab and one for Production. In the Lab, we can create templates. Clicking OK results in the New Template dialog disappearing and the VM's disk becomes locked and template creation begins. In the production environment, we cannot create templates. Clicking OK results in nothing, the dialog box remains. Nothing indicates missing/incorrect information. Both environments are on hosted engines, and oVirt Engine version 4.5. I have monitored the logs in the production environment and nothing comes up when the OK button is clicked. I have tested both environments in both Firefox and Chrome, and the behavior is also the same, our lab will progress, but production will simply not budge.

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new cluster, 6 nodes
by bpbp＠fastmail.com 31 May '22

31 May '22

Hi all, planning a new 6 node hyper-converged cluster. Have a couple of questions 1) storage - I think we want to do 2x replicas and 1 arbiter, in the chained configuration seen here (example 5.7) https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.5/h… any suggestions on how that looks from the bottom up? for example does each host have all their disks in a single hardware raid6 volume, and then the bricks are thinly provisioned via LVM on top so each node has 2 data and 1 arbiter bricks. or is something else recommended? 2) setup - Do I start with a 3 node pool and extend to 6 or use ansible to set up 6 from the start? Thanks

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Re: Getting error on oVirt installation
by dwayne.morton＠cment.com 30 May '22

30 May '22

I've installed ovirt node (fresh 4.4) and am trying to deploy engine and it fails each time. seems to be in a loop. I seen this in RHV 4.3 and it was due to IPV6 being enabled. Any help us appreciated.

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How to update Ovirt nodes (installed from pre-built ovirt-node-ng .iso) from 4.4.10 -> 4.5
by morgan cox 30 May '22

30 May '22

Hi. hi - wondering if anyone can advise me, how to update Ovirt nodes (installed from pre-built image iso (i.e https://resources.ovirt.org/pub/ovirt-4.4/iso/ovirt-node-ng-installer/4.4.1… ) from 4.4.10 -> 4.5 ? I have a rhel8.6 server as the engine (standalone) - when i successfully updated already - using guide from -> https://www.ovirt.org/documentation/upgrade_guide/#Upgrading_the_Manager_to… And the engine has now been successfully upgraded to 4.5 But all our Ovirt nodes/hosts have been installed via pre-built ovirt-installer-ng .iso - which is based on CentOS Stream release 8 i.e on the nodes I see - cat /etc/redhat-release -> CentOS Stream release 8 Presently the 4.4.10 nodes (from pre-built image) show no updates in the Ovirt engine do i need to do the steps here -> https://ovirt.org/download/install_on_rhel.html on an ovirt node installed from the ovirt-node-ng iso as it reads like it is just nodes based on rhel, etc you need to . Any advice of how to update the nodes would be welcomed Thanks

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storage high latency, sanlock errors, cluster instability
by Jonathan Baecker 29 May '22

29 May '22

Hello everybody, we run a 3 node self hosted cluster with GlusterFS. I had a lot of problem upgrading ovirt from 4.4.10 to 4.5.0.2 and now we have cluster instability. First I will write down the problems I had with upgrading, so you get a bigger picture: * engine update when fine * But nodes I could not update because of wrong version of imgbase, so I did a manual update to 4.5.0.1 and later to 4.5.0.2. First time after updating it was still booting into 4.4.10, so I did a reinstall. * Then after second reboot I ended up in the emergency mode. After a long searching I figure out that lvm.conf using *use_devicesfile *now but there it uses the wrong filters. So I comment out this and add the old filters back. This procedure I have done on all 3 nodes. * Then in cockpit on all nodes I see errors about: |ovs|00077|stream_ssl|ERR|Private key must be configured to use SSL| to fix that I run *vdsm-tool ovn-config [engine IP] ovirtmgmt, *and later in then web interface I choice for every node: enroll certificate. * between upgrading the nodes, I was a bit to fast to migrate all running VMs inclusive the HostedEngine, from one host to another and then hosted engine crashes one time. But it came back after some minutes and since this the engine runs normal. * Then I finish the installation with updating the cluster compatibility version to 4.7. * I notice some unsync volume warning, but because I had this in the past to, after upgrading, I though after some time they will disappear. The next day there still where there, so I decided to put the nodes again in the maintenance mode and restart the glusterd service. After some time the sync warnings where gone. So now the actual problem: Since this time the cluster is unstable. I get different errors and warning, like: * VM [name] is not responding * out of nothing HA VM gets migrated * VM migration can fail * VM backup with snapshoting and export take very long * VMs are getting very slow some times * Storage domain vmstore experienced a high latency of 9.14251 * ovs|00001|db_ctl_base|ERR|no key "dpdk-init" in Open_vSwitch record "." column other_config * 489279 [1064359]: s8 renewal error -202 delta_length 10 last_success 489249 * 444853 [2243175]: s27 delta_renew read timeout 10 sec offset 0 /rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/ids * 471099 [2243175]: s27 delta_renew read timeout 10 sec offset 0 /rhev/data-center/mnt/glusterSD/onode1.example.org:_vmstore/3cf83851-1cc8-4f97-8960-08a60b9e25db/dom_md/ids * many of: 424035 [2243175]: s27 delta_renew long write time XX sec I will put here the sanlock.log messages and vdsm.log. Is there a way that I can fix this issues? Regards! Jonathan

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Install OKD 4.10 with Custom oVirt Certificate
by Fredrik Arneving 28 May '22

28 May '22

Hi, I've setup and ran Installer Provisioned Installation of OKD on several occations with OKD versions 4.4 - 4.8 on my oVirt (4.3?)/4.4 platform. However, after installing a Custom certificate for my self-hosted ovirt engine I've got problems getting the installation of OKD 4.10 (and 4.8) to complete. Is this a known problem with a known solution I can read up on somewhere? The install takes three times as long as the working ones did before and when I look at pods and cluster operators the "authentication" ones are in a bad state. I can use the KUBECONFIG environment variable to list pods and interact with the environment but the "oc login" fails with "unknown issuer". I had the choice of a "full install" of my custom cert or just the GUI/Web and I chose the latter. When installing the custom cert I followed the official RHV documentation that was pointed to by some oVirt user in a forum. Whatever certs I didn't change seemed to have worked before so I would be surprised if the solution is to go for the "full install". In all other cases (like my Foreman server and my freeIPA server) the oVirt works just fine with it's custom cert. Since I've made it before I'm pretty sure I've correctly followed the OKD installation instructions. What's new is the custom ovirt hosted-engine cert. Is there a detailed documentation on exactly what certificates from my oVirt installation that should be added to my "additionalTrustBundle" in OKD to make it work? In my previous working installations I added the custom root CA since I needed it for other purposes but maybe I need to add some other internal ovirt CA? I'm currently running oVirt version "4.4.10.7-1.el8" on CentOS Stream release 8 and OKD version "4.10.0-0.okd-2022-03-07-131213". No hardware changes between working installations and failed ones. Any hints on how to solve this would be appreciated

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why so many such logs ?
by tommy 27 May '22

27 May '22

In the new version of 4.5, we can see a lot of OVN synchronization items in the engine logs, very frequently, which was not seen in previous versions. Is it a new feature?

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about the bridge of the host
by tommy 27 May '22

27 May '22

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master ovirtmgmt state UP group default qlen 1000 link/ether 08:00:27:94:4d:e8 brd ff:ff:ff:ff:ff:ff 3: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether 9e:5d:8f:94:00:86 brd ff:ff:ff:ff:ff:ff 4: br-int: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000 link/ether ea:20:e5:c3:d6:31 brd ff:ff:ff:ff:ff:ff 5: ovirtmgmt: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 08:00:27:94:4d:e8 brd ff:ff:ff:ff:ff:ff inet 10.1.1.7/24 brd 10.1.1.255 scope global noprefixroute ovirtmgmt valid_lft forever preferred_lft forever 21: ip_vti0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000 link/ipip 0.0.0.0 brd 0.0.0.0 22: ;vdsmdummy;: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether 1e:cb:bf:02:f7:33 brd ff:ff:ff:ff:ff:ff what use of the 3/4/5/21/22 ? ( I know the item 5 ) are they all the bridge ? The out put of the brctl show appears only the ovirtmgmt and ;vdsmdummy' are bridge. [root@host1 ~]# brctl show bridge name bridge id STP enabled interfaces ;vdsmdummy; 8000.000000000000 no ovirtmgmt 8000.080027944de8 no enp0s3 [root@host1 ~]#

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why out of sync hosts ?
by tommy 26 May '22

26 May '22

What configuration is not synchronized to the host?

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