July 2021 - Users - oVirt List Archives

oVirt host deploy: disable multipath
by femi adegoke 27 Mar '23

27 Mar '23

https://bugzilla.redhat.com/show_bug.cgi?id=1472356 There are 2 drives in my install that oVirt is claiming as multipath. I have tried blacklisting at /etc/multipath/ but that hasn't worked. Any better solutions? I need these 2 drives to be non-multipathed.

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Out-of-sync networks can only be detached
by Sakhi Hadebe 27 Feb '23

27 Feb '23

Hi, I have a 3-node oVirt cluster. I have configured 2 logical networks: ovirtmgmt and public. Public logical network is attached in only 2 nodes and failing to attach on the 3rd node with the below error Invalid operation, out-of-sync network 'public' can only be detached. Please have been stuck on this for almost the whole day now. How do I fix this error? -- Regards, Sakhi Hadebe

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Network Address Change
by Paul.LKW 28 Dec '22

28 Dec '22

Hi All: I just has a case, I need to change the oVirt host and engine IP address due to data center decommission I checked in the hosted-engine host there are some files I could change ; in ovirt-hosted-engine/hosted-engine.conf ca_subject="O=simple.com, CN=1.2.3.4" gateway=1.2.3.254 and of course I need to change the ovirtmgmt interface IP too, I think just change the above line could do the tick, but where could I change the other host IP in the cluster ? I think I have to be lost all the host as once changed the hosted-engine host IP as it is in diff. sub net. Does there any command line tools could do that or someone has such experience could share? Best Regards, Paul.LKW

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what happens to vms when a host shutdowns?
by Nathanaël Blanchet 15 Nov '22

15 Nov '22

Hi, We are installing UPS powerchute client on hypervisors. What is the default vms behaviour of running vms when an hypervisor is ordered to shutdown: do the vms live migrate or do they shutdown properly (even the restart on an other host because of HA) ? -- Nathanaël Blanchet Supervision réseau SIRE 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 blanchet(a)abes.fr

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[4.4.7] The latest guest agent needs to be installed and running on the guest
by Christoph Timm 28 Oct '22

28 Oct '22

Hi list, I have upgraded my oVirt from 4.4.4 to 4.4.7 and notice that some VMs have issues to report the performance information via the guest agent. I see the following message on the VMs: The latest guest agent needs to be installed and running on the guest The qemu-guest agent is installed on VMs (the VM OS is CentOS 8). Any advice how to troubleshoot this? I can see the stats will be presented in the GUI, if I migrate the VM to a different host. Best regards Christoph

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can't use vmconsole anymore
by Nathanaël Blanchet 13 Jun '22

13 Jun '22

Hi, I was used to use the vmconsole proxy, but since a while, I'm getting this issue (currently 4.4.5): # ssh -t -p 2222 ovirt-vmconsole(a)air.v100.abes.fr connect ovirt-vmconsole(a)air.v100.abes.fr: Permission denied (publickey). I found following in the engine.log 2021-04-15 17:55:43,094+02 ERROR [org.ovirt.engine.core.services.VMConsoleProxyServlet] (default task-4) [] Error validating ticket: : sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at java.base/sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141) at java.base/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126) at java.base/java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297) at org.ovirt.engine.core.uutils//org.ovirt.engine.core.uutils.crypto.CertificateChain.buildCertPath(CertificateChain.java:128) at org.ovirt.engine.core.uutils//org.ovirt.engine.core.uutils.crypto.ticket.TicketDecoder.decode(TicketDecoder.java:89) at deployment.engine.ear.services.war//org.ovirt.engine.core.services.VMConsoleProxyServlet.validateTicket(VMConsoleProxyServlet.java:175) at deployment.engine.ear.services.war//org.ovirt.engine.core.services.VMConsoleProxyServlet.doPost(VMConsoleProxyServlet.java:225) The user key is the good one, I use the same with my other engines and I can successfully connect to vm consoles. Thank you for helping -- Nathanaël Blanchet Supervision réseau SIRE 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 blanchet(a)abes.fr

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looking for some ISV backup software which integrates the backup API
by Nathanaël Blanchet 08 Jun '22

08 Jun '22

Hello, We are about to change our backup provider, and I find it is a great chance to choose a full supported ovirt backup solution. I currently use this python script vm-backup-scheduler (https://github.com/wefixit-AT/oVirtBackup) but it is not the workflow officially suggested by the community (https://www.ovirt.org/develop/release-management/features/storage/backup-re…) I've been looking for a long time an ISV who supports such an API, but the only one I found is this one : Acronis Backup Advanced suggested here https://access.redhat.com/ecosystem/search/#/ecosystem/Red%20Hat%20Enterpri… I ran the trial version, but it doesn't seem to do better than the vm-backup-scheduler script, and it doesn't seem to use the backup API (attach a clone as a disk to an existing vm). Can you suggest me some other ISV solutions, if they ever exist... or share me your backup experience?

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VM HostedEngine is down with error
by souvaliotimaria＠mail.com 26 May '22

26 May '22

Hello everyone, I have a replica 2 + arbiter installation and this morning the Hosted Engine gave the following error on the UI and resumed on a different node (node3) than the one it was originally running(node1). (The original node has more memory than the one it ended up, but it had a better memory usage percentage at the time). Also, the only way I discovered the migration had happened and there was an Error in Events, was because I logged in the web interface of ovirt for a routine inspection. Βesides that, everything was working properly and still is. The error that popped is the following: VM HostedEngine is down with error. Exit message: internal error: qemu unexpectedly closed the monitor: 2020-09-01T06:49:20.749126Z qemu-kvm: warning: All CPU(s) up to maxcpus should be described in NUMA config, ability to start up with partial NUMA mappings is obsoleted and will be removed in future 2020-09-01T06:49:20.927274Z qemu-kvm: -device virtio-blk-pci,iothread=iothread1,scsi=off,bus=pci.0,addr=0x7,drive=drive-ua-d5de54b6-9f8e-4fba-819b-ebf6780757d2,id=ua-d5de54b6-9f8e-4fba-819b-ebf6780757d2,bootindex=1,write-cache=on: Failed to get "write" lock Is another process using the image?. Which from what I could gather concerns the following snippet from the HostedEngine.xml and it's the virtio disk of the Hosted Engine: <disk type='file' device='disk' snapshot='no'> <driver name='qemu' type='raw' cache='none' error_policy='stop' io='threads' iothread='1'/> <source file='/var/run/vdsm/storage/80f6e393-9718-4738-a14a-64cf43c3d8c2/d5de54b6-9f8e-4fba-819b-ebf6780757d2/a48555f4-be23-4467-8a54-400ae7baf9d7'> <seclabel model='dac' relabel='no'/> </source> <target dev='vda' bus='virtio'/> <serial>d5de54b6-9f8e-4fba-819b-ebf6780757d2</serial> <alias name='ua-d5de54b6-9f8e-4fba-819b-ebf6780757d2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </disk> I've tried looking into the logs and the sar command but I couldn't find anything to relate with the above errors and determining the reason for it to happen. Is this a Gluster or a QEMU problem? The Hosted Engine was manually migrated five days before on node1. Is there a standard practice I could follow to determine what happened and secure my system? Thank you very much for your time, Maria Souvalioti

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LACP across multiple switches
by Jorge Visentini 25 May '22

25 May '22

Hi all. Is it possible to configure oVirt for work with two NICs in bond/LACP across two switches, according to the image below? [image: LACP_Across_Two_Switchs.png] Thank you all. You guys do a wonderful job. -- Att, Jorge Visentini +55 55 98432-9868

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OVS switch type for hosted-engine
by Devin A. Bougie 06 May '22

06 May '22

Is it possible to setup a hosted engine using the OVS switch type instead of Legacy? If it's not possible to start out as OVS, instructions for switching from Legacy to OVS after the fact would be greatly appreciated. Many thanks, Devin

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