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Engine on EL 9
by David Carvalho 09 Nov '23

09 Nov '23

Hello, good morning. I’m using Oracle Linux and I intended to install a virtualization platffom with KVM and oracle VM. The Oracle documention only mentions Oracle Linux 8 and there are no oVirt repositories available for OL 9. I visited ovirt.org site and at the download page it only mentions: Engine: * Red Hat Enterprise Linux 8.7 (or similar) * CentOS Stream 8 I still had no reply at Oracle foruns. Will there be a possibility to use this with Oracle Linux 9 soon? I have 3 servers to install and I also intend to use Gluster FS. Thanks and regards. Os melhores cumprimentos David Alexandre M. de Carvalho ═══════════════════ Especialista de Informática Departamento de Informática Universidade da Beira Interior

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VMs randomly pause due to unknown storage error, unable to resume
by Jon Sattelberger 09 Nov '23

09 Nov '23

Hi, > VM xxx has been paused due to unknown storage error. > Migration failed due to a failed validation: [Migrating a VM in paused status due to I/O error is not supported.] (VM: xxx, Source: yyy). Up until recently oVirt 4.5.4 has been running fine on our RHEL 8 hypervisors with primarily (and a few appliances) Linux guests. We started to add Windows 2019 VMs to the cluster with the guest agent installed. They seem to run fine at first, but some of the Windows VMs may randomly pause due to an unknown storage error. The VM cannot be resumed through the UI or virsh. The paused VM cannot be migrated to another Hypervisor. The GlusterFS storage volumes seem fine. Resetting the VM seems to work, but eventually it'll become paused again. The only thing that came to my mind is the virtual hard disks are thin provisioned. Is a preallocated disk necessary for Windows VMs? Any helpful hints on where to look next is greatly appreciated. Thank you, Jon

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oVirt support for NVMe-oF devices as storage domain.
by lxtakc＠gmail.com 09 Nov '23

09 Nov '23

Hello, We are interested in using oVirt with NVMe-oF devices. Is there an option to connect them as Storage Domain? What should be done to achieve it? Managed Block Storage (cinderlib) is not an option for us, because it doesn't support backups (incremental backups with e.g. Veeam or others). What should be done on oVirt side to support NVMe-oF as Storage Domain (like iSCSI, FCP, NFS)? Thanks.

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Re: how to renew expired ovirt node vdsm cert manually ?
by Dominic Gwerder 09 Nov '23

09 Nov '23

Hi I followed all the instructions but I now get the following error on my host: ovn-controller ovs|08734|stream_ssl|ERR|Private key must be configured to use SSL PRIORITY 3 SYSLOG_FACILITY 3 SYSLOG_IDENTIFIER ovn-controller _BOOT_ID 52c3fc529b1644dbb789384be75b0cab _CAP_EFFECTIVE 7c00 _CMDLINE ovn-controller unix:/run/openvswitch/db.sock -vconsole:emer -vsyslog:err -vfile:info --private-key=/etc/pki/vdsm/keys/vdsmkey.pem --certificate=/etc/pki/vdsm/certs/vdsmcert.pem --ca-cert=/etc/pki/vdsm/certs/cacert.pem --user openvswitch:openvswitch --no-chdir --log-file=/var/log/ovn/ovn-controller.log --pidfile=/run/ovn/ovn-controller.pid --detach _COMM ovn-controller _EXE /usr/bin/ovn-controller Do you have a solution for this? Does the user openvswitch need access to the keys? Thanks in advance. Kind regards, Dominic Gwerder bits ag

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What is the impact of doubling default NumOfPciExpressPorts value?
by ivan.lezhnjov.iv＠gmail.com 09 Nov '23

09 Nov '23

Hi! We've been trying to understand what the effect of increasing NumOfPciExpressPorts might be in terms of system resources consumption and overall system performance of the oVirt Hosts. In this specific scenario, we're running an oVirt deployment with about 100 hosts and thousands of VMs. oVirt allocates 16 PCIe ports by default (or is it QEMU defaults?) and we would like to increase that number to about 30. However, only very few VMs are actually gonna use those extra PCIe ports in terms of having additional devices (like NICs). So, basically, there will be a lot of VMs that have about twice as many PCIe ports available to them than now but not really using them (as in having actual additional devices created and associated with the VMs). How is that going to impact physical servers that are running the VMs? Any potential problems for the VMs themselves? Ivan

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Unable to start HostedEngine
by Devin A. Bougie 08 Nov '23

08 Nov '23

After a failed attempt at migrating our HostedEngine to a new iSCSI storage domain, we're unable to restart the original HostedEngine. Please see below for some details, and let me know what more information I can provide. "Lnxvirt07" was the Host used to attempt the migration. Any help would be greatly appreciated. Many thanks, Devin ------ [root@lnxvirt01 ~]# tail -n 5 /var/log/ovirt-hosted-engine-ha/agent.log MainThread::INFO::2023-11-01 12:29:53,514::state_decorators::51::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(check) Global maintenance detected MainThread::INFO::2023-11-01 12:29:54,151::ovf_store::117::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan) Found OVF_STORE: imgUUID:05ef954f-d06d-401c-85ec-5992e2afbe7d, volUUID:d2860f1d-19cf-4084-8a7e-d97880c32431 MainThread::INFO::2023-11-01 12:29:54,530::ovf_store::117::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan) Found OVF_STORE: imgUUID:a375a35b-7a87-4df4-8d29-a5ba371fee85, volUUID:ef8b3dae-bcae-4d58-bea8-cf1a34872267 MainThread::ERROR::2023-11-01 12:29:54,813::config_ovf::65::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config.vm::(_get_vm_conf_content_from_ovf_store) Failed extracting VM OVF from the OVF_STORE volume, falling back to initial vm.conf MainThread::INFO::2023-11-01 12:29:54,843::hosted_engine::531::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_monitoring_loop) Current state GlobalMaintenance (score: 3400) [root@lnxvirt01 ~]# hosted-engine --vm-start Command VM.getStats with args {'vmID': 'e6370d8f-c083-4f28-83d0-a232d693e07a'} failed: (code=1, message=Virtual machine does not exist: {'vmId': 'e6370d8f-c083-4f28-83d0-a232d693e07a'}) Command VM.create with args {'vmID': 'e6370d8f-c083-4f28-83d0-a232d693e07a', 'vmParams': {'vmId': 'e6370d8f-c083-4f28-83d0-a232d693e07a', 'memSize': '16384', 'display': 'vnc', 'vmName': 'HostedEngine', 'smp': '4', 'maxVCpus': '40', 'cpuType': 'Haswell-noTSX', 'emulatedMachine': 'pc', 'devices': [{'index': '2', 'iface': 'ide', 'address': {'controller': '0', 'target': '0', 'unit': '0', 'bus': '1', 'type': 'drive'}, 'specParams': {}, 'readonly': 'true', 'deviceId': 'b3e2f40a-e28d-493c-af50-c1193fb9dc97', 'path': '', 'device': 'cdrom', 'shared': 'false', 'type': 'disk'}, {'index': '0', 'iface': 'virtio', 'format': 'raw', 'poolID': '00000000-0000-0000-0000-000000000000', 'volumeID': '6afa3b19-7a1a-4e5c-a681-eed756d316e9', 'imageID': '94628710-cf73-4589-bd84-e58f741a4d5f', 'specParams': {}, 'readonly': 'false', 'domainID': '555ad71c-1a4e-42b3-af8c-db39d9b9df67', 'optional': 'false', 'deviceId': '6afa3b19-7a1a-4e5c-a681-eed756d316e9', 'address': {'bus': '0x00', 'slot': '0x06', 'domain': '0x0000', 'type': 'pci', 'function': '0x0'}, 'device': 'disk', 'shared': 'exclusive', 'propagateErrors': 'off', 'type': 'disk', 'bootOrder': '1'}, {'device': 'scsi', 'model': 'virtio-scsi', 'type': 'controller'}, {'nicModel': 'pv', 'macAddr': '00:16:3e:3b:3f:14', 'linkActive': 'true', 'network': 'ovirtmgmt', 'specParams': {}, 'deviceId': '002afd06-9649-4ac5-a5e8-1a4945c3c136', 'address': {'bus': '0x00', 'slot': '0x03', 'domain': '0x0000', 'type': 'pci', 'function': '0x0'}, 'device': 'bridge', 'type': 'interface'}, {'device': 'console', 'type': 'console'}, {'device': 'vga', 'alias': 'video0', 'type': 'video'}, {'device': 'vnc', 'type': 'graphics'}, {'device': 'virtio', 'specParams': {'source': 'urandom'}, 'model': 'virtio', 'type': 'rng'}]}} failed: (code=100, message=General Exception: ("'xml'",)) VM failed to launch [root@lnxvirt01 ~]# cat /etc/ovirt-hosted-engine/hosted-engine.conf fqdn=lnxvirt-engine.classe.cornell.edu vm_disk_id=94628710-cf73-4589-bd84-e58f741a4d5f vm_disk_vol_id=6afa3b19-7a1a-4e5c-a681-eed756d316e9 vmid=e6370d8f-c083-4f28-83d0-a232d693e07a storage=192.168.56.50,192.168.56.51,192.168.56.52,192.168.56.53 nfs_version= mnt_options= conf=/var/run/ovirt-hosted-engine-ha/vm.conf host_id=8 console=vnc domainType=iscsi spUUID=00000000-0000-0000-0000-000000000000 sdUUID=555ad71c-1a4e-42b3-af8c-db39d9b9df67 connectionUUID=e29cf818-5ee5-46e1-85c1-8aeefa33e95d vdsm_use_ssl=true gateway=192.168.55.1 bridge=ovirtmgmt network_test=dns tcp_t_address= tcp_t_port= metadata_volume_UUID=2bf987a2-ab81-454c-9fc7-dc7ec8945fd9 metadata_image_UUID=35429b63-16ca-417a-b87a-d232463bf6a3 lockspace_volume_UUID=b0d09780-2047-433c-812d-10ba0beff788 lockspace_image_UUID=8ccb878d-9938-43c8-908b-e1b416fe991c conf_volume_UUID=0b40ac60-499e-4ff1-83d0-fc578f1af3dc conf_image_UUID=551d4fe5-a9f7-4ba1-9951-87418362b434 # The following are used only for iSCSI storage iqn=iqn.2002-10.com.infortrend:raid.uid58207.001 portal=1 user= password= port=3260,3260,3260,3260 [root@lnxvirt01 ~]# hosted-engine --vm-status !! Cluster is in GLOBAL MAINTENANCE mode !! --== Host lnxvirt06.classe.cornell.edu (id: 1) status ==-- Host ID : 1 Host timestamp : 3718817 Score : 3400 Engine status : {"vm": "down", "health": "bad", "detail": "unknown", "reason": "vm not running on this host"} Hostname : lnxvirt06.classe.cornell.edu Local maintenance : False stopped : False crc32 : 233a1425 conf_on_shared_storage : True local_conf_timestamp : 3718818 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=3718817 (Wed Nov 1 12:26:35 2023) host-id=1 score=3400 vm_conf_refresh_time=3718818 (Wed Nov 1 12:26:37 2023) conf_on_shared_storage=True maintenance=False state=GlobalMaintenance stopped=False --== Host lnxvirt05.classe.cornell.edu (id: 2) status ==-- Host ID : 2 Host timestamp : 3719461 Score : 3400 Engine status : {"vm": "down", "health": "bad", "detail": "unknown", "reason": "vm not running on this host"} Hostname : lnxvirt05.classe.cornell.edu Local maintenance : False stopped : False crc32 : b3c81abe conf_on_shared_storage : True local_conf_timestamp : 3719462 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=3719461 (Wed Nov 1 12:26:41 2023) host-id=2 score=3400 vm_conf_refresh_time=3719462 (Wed Nov 1 12:26:42 2023) conf_on_shared_storage=True maintenance=False state=GlobalMaintenance stopped=False --== Host lnxvirt04.classe.cornell.edu (id: 3) status ==-- Host ID : 3 Host timestamp : 3718684 Score : 3400 Engine status : {"vm": "down", "health": "bad", "detail": "unknown", "reason": "vm not running on this host"} Hostname : lnxvirt04.classe.cornell.edu Local maintenance : False stopped : False crc32 : 03a57b14 conf_on_shared_storage : True local_conf_timestamp : 3718686 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=3718684 (Wed Nov 1 12:26:41 2023) host-id=3 score=3400 vm_conf_refresh_time=3718686 (Wed Nov 1 12:26:43 2023) conf_on_shared_storage=True maintenance=False state=GlobalMaintenance stopped=False --== Host lnxvirt03.classe.cornell.edu (id: 4) status ==-- Host ID : 4 Host timestamp : 3719430 Score : 3400 Engine status : {"vm": "down", "health": "bad", "detail": "unknown", "reason": "vm not running on this host"} Hostname : lnxvirt03.classe.cornell.edu Local maintenance : False stopped : False crc32 : adb1aad2 conf_on_shared_storage : True local_conf_timestamp : 3719432 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=3719430 (Wed Nov 1 12:26:35 2023) host-id=4 score=3400 vm_conf_refresh_time=3719432 (Wed Nov 1 12:26:36 2023) conf_on_shared_storage=True maintenance=False state=GlobalMaintenance stopped=False --== Host lnxvirt02.classe.cornell.edu (id: 5) status ==-- Host ID : 5 Host timestamp : 3719408 Score : 3400 Engine status : {"vm": "down", "health": "bad", "detail": "unknown", "reason": "vm not running on this host"} Hostname : lnxvirt02.classe.cornell.edu Local maintenance : False stopped : False crc32 : 1996a067 conf_on_shared_storage : True local_conf_timestamp : 3719410 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=3719408 (Wed Nov 1 12:26:39 2023) host-id=5 score=3400 vm_conf_refresh_time=3719410 (Wed Nov 1 12:26:41 2023) conf_on_shared_storage=True maintenance=False state=GlobalMaintenance stopped=False --== Host lnxvirt07.classe.cornell.edu (id: 7) status ==-- Host ID : 7 Host timestamp : 495392 Score : 0 Engine status : unknown stale-data Hostname : lnxvirt07.classe.cornell.edu Local maintenance : False stopped : True crc32 : 2572e907 conf_on_shared_storage : True local_conf_timestamp : 495352 Status up-to-date : False Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=495392 (Tue Oct 31 10:20:12 2023) host-id=7 score=0 vm_conf_refresh_time=495352 (Tue Oct 31 10:19:33 2023) conf_on_shared_storage=True maintenance=False state=AgentStopped stopped=True --== Host lnxvirt01.classe.cornell.edu (id: 8) status ==-- Host ID : 8 Host timestamp : 1729103 Score : 3400 Engine status : {"vm": "down", "health": "bad", "detail": "unknown", "reason": "vm not running on this host"} Hostname : lnxvirt01.classe.cornell.edu Local maintenance : False stopped : False crc32 : 2e57e99d conf_on_shared_storage : True local_conf_timestamp : 1729104 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=1729103 (Wed Nov 1 12:26:31 2023) host-id=8 score=3400 vm_conf_refresh_time=1729104 (Wed Nov 1 12:26:33 2023) conf_on_shared_storage=True maintenance=False state=GlobalMaintenance stopped=False !! Cluster is in GLOBAL MAINTENANCE mode !!

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Hosted-engine restore failing when migrating to new storage domain
by Devin A. Bougie 08 Nov '23

08 Nov '23

Hello, We have a functioning oVirt 4.5.4 cluster running on fully-updated EL9.2 hosts. We are trying to migrate the self-hosted engine to a new iSCSI storage domain using the existing hosts, following the documented procedure: - set the cluster into global maintenance mode - backup the engine using "engine-backup --scope=all --mode=backup --file=backup.bck --log=backuplog.log" - shutdown the engine - restore the engine using "hosted-engine --deploy --4 --restore-from-file=backup.bck" This almost works, but fails with the attached log file. Any help or suggestions would be greatly appreciated, including alternate procedures for migrating a self-hosted engine from one domain to another. Many thanks, Devin

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Call for participation: Virtualization and Cloud infrastructure Room at FOSDEM 2024
by Piotr Kliczewski 08 Nov '23

08 Nov '23

We are excited to announce that the call for proposals is now open for the Virtualization and Cloud infrastructure devroom at the upcoming FOSDEM 2024, to be hosted on February 3rd 2024. This devroom is a collaborative effort, and is organized by dedicated folks from projects such as OpenStack, Xen Project, KubeVirt, QEMU, KVM, and Foreman. We would like to invite all those who are involved in these fields to submit your proposals by December 8th, 2023. About the Devroom The Virtualization & IaaS devroom will feature session topics such as open source hypervisors or virtual machine managers such as Xen Project, KVM, bhyve and VirtualBox as well as Infrastructure-as-a-Service projects such as KubeVirt, Apache CloudStack, OpenStack, QEMU and OpenNebula. This devroom will host presentations that focus on topics of shared interest, such as KVM; libvirt; shared storage; virtualized networking; cloud security; clustering and high availability; interfacing with multiple hypervisors; hyperconverged deployments; and scaling across hundreds or thousands of servers. Presentations in this devroom will be aimed at developers working on these platforms who are looking to collaborate and improve shared infrastructure or solve common problems. We seek topics that encourage dialog between projects and continued work post-FOSDEM. Important Dates Submission deadline: 8th December 2023 Acceptance notifications: 10th December 2023 Final schedule announcement: 15th December 2023 Devroom: 3rd February 2024 Submit Your Proposal All submissions must be made via the Pretalx event planning site[1]. It is a new submission system so you will need to create an account. If you submitted proposals for FOSDEM in previous years, you won’t be able to use your existing account. During submission please make sure to select Virtualization and Cloud infrastructure from the Track list. Please fill out all the required fields, and provide a meaningful abstract and description of your proposed session. Submission Guidelines We expect more proposals than we can possibly accept, so it is vitally important that you submit your proposal on or before the deadline. Late submissions are unlikely to be considered. All presentation slots are 30 minutes, with 20 minutes planned for presentations, and 10 minutes for Q&A. All presentations will be recorded and made available under Creative Commons licenses. In the Submission notes field, please indicate that you agree that your presentation will be licensed under the CC-By-SA-4.0 or CC-By-4.0 license and that you agree to have your presentation recorded. For example: "If my presentation is accepted for FOSDEM, I hereby agree to license all recordings, slides, and other associated materials under the Creative Commons Attribution Share-Alike 4.0 International License. Sincerely, <NAME>." In the Submission notes field, please also confirm that if your talk is accepted, you will be able to attend FOSDEM and deliver your presentation. We will not consider proposals from prospective speakers who are unsure whether they will be able to secure funds for travel and lodging to attend FOSDEM. (Sadly, we are not able to offer travel funding for prospective speakers.) Code of Conduct Following the release of the updated code of conduct for FOSDEM, we'd like to remind all speakers and attendees that all of the presentations and discussions in our devroom are held under the guidelines set in the CoC and we expect attendees, speakers, and volunteers to follow the CoC at all times. If you submit a proposal and it is accepted, you will be required to confirm that you accept the FOSDEM CoC. If you have any questions about the CoC or wish to have one of the devroom organizers review your presentation slides or any other content for CoC compliance, please email us and we will do our best to assist you. Questions? If you have any questions about this devroom, please send your questions to our devroom mailing list. You can also subscribe to the list to receive updates about important dates, session announcements, and to connect with other attendees. See you all at FOSDEM! [1] <https://penta.fosdem.org/submission/FOSDEM17> https://pretalx.fosdem.org/fosdem-2024/cfp [2] virtualization-devroom-manager at fosdem.org

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Moving hosted-engine to a new cluster
by Ling Ho 08 Nov '23

08 Nov '23

Hello, I set up some new hypervisors recently, created a new cluster using the newer CPU, and migrated all my VMs by changing the cluster and restarting them. Now I have the hosted engine left running in my old cluster. I could not find any recent documentation or discussion on the net. What's the proper way to migrate the hosted engine? I am on oVirt 4.5.4. Thanks, ... ling

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Cannot "Change CD" from VM portal with standard user
by Gianluca Amato 07 Nov '23

07 Nov '23

Hello, I am trying to attach a CD to a virtual machine from the VM Portal as a standard user. When I click on the box for choosing the ISO image, I only get "[Empty]". However, when I access the VM portal as an admin, I correctly see the list of ISO images. I suspect it is a problem of permission: I have assigned to the unprivileged user the UserRole permission both for the VM and the ISO disk images. Am I doing something wrong ? Do I need to assign different roles ? Thanks, --gianluca

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