oVirt 4.4.2 Release Notes

The oVirt Project is pleased to announce the availability of the 4.4.2 Second Release Candidate as of August 06, 2020.

oVirt is a free open-source distributed virtualization solution, designed to manage your entire enterprise infrastructure. oVirt uses the trusted KVM hypervisor and is built upon several other community projects, including libvirt, Gluster, PatternFly, and Ansible.

This release is available now for Red Hat Enterprise Linux 8.2 and CentOS Linux 8.2 (or similar).

To find out how to interact with oVirt developers and users and ask questions, visit our community page. All issues or bugs should be reported via Red Hat Bugzilla.

The oVirt Project makes no guarantees as to its suitability or usefulness. This pre-release should not to be used in production, and it is not feature complete.

If you’d like 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 a general overview of oVirt, read the About oVirt page.

To learn about features introduced before 4.4.2, see the release notes for previous versions.

  1. oVirt 4.4.2 Release Notes
    2. What’s New in 4.4.2?
      1. Enhancements
        1. oVirt Engine
      2. Bug Fixes
        1. VDSM
        2. oVirt Engine
      3. Other
        1. VDSM
        2. oVirt Engine
        3. oVirt dependencies
        4. oVirt Engine Data Warehouse
      4. No Doc Update
        1. oVirt Engine
        2. oVirt Engine Data Warehouse
        3. Contributors


In order to install this Release Candidate you will need to enable pre-release repository.

# yum install http://resources.ovirt.org/pub/yum-repo/ovirt-release44-pre.rpm

What’s New in 4.4.2?


oVirt Engine

  • BZ 1749803 [RFE] Improve workflow for storage migration of VMs with multiple disks


Allow setting the same target domain for multiple disks at

once on the move/copy popup.


Currently, while moving/copying multiple disks, the user is required to set the target domain for each disk separately, one by one.


For multiple selected disks, if a common target domain exists, it can be set as the target domain for all those disks at once by selecting it from the list.

In case a common storage domain doesn’t exist, or setting a different target domain for part of the disks,

(so not all disks will be moved/copied to the same storage domain), the common target domain would be set as ‘Mixed’.

  • BZ 1837873 [RFE] No warning/blocking when detaching storage domain when there are VMs with disk on the detached domain and second disk on other domain


Warn on detaching a storage domain having VMs/templates with disks on another storage domain.


When a user wants to detach a storage domain that contains

VMs/templates, their disks should be moved to a storage domain used for migration.

Currently, when that entity also has multiple disks on a different storage domain, its future migration might get complicated and split into two partial entities instead.


In order to avoid the entity’s split, a new warning was added in that case while confirming the SD detach.

  • BZ 1819260 [RFE] enhance search filter for Storage Domains with free argument

    This RFE was resolved by

1) change “size” to “free_size”

2) add “total_size” to the search engine options

3) change “used” to “used_size”

4) adding “(GB)” when displaying 1-3 above

for example , you can use now the followingf from the storage domains TAB

“free_size > 6 and total_size < 20”

Bug Fixes


  • BZ 1854922 spec_ctrl host feature not detected

  • BZ 1793290 guestDiskMapping can be missing or incorrect when retrieved from qga

oVirt Engine

  • BZ 1856677 postgresql restarts too much, eventually fails



  • BZ 1859876 imgbase check failed after register to engine

  • BZ 1860716 VDSM Traceback failure at the journal log on DEBUG mode

  • BZ 1840414 Live merge failure with libvirt error virDomainBlockCommit() failed

  • BZ 1850267 [Performance] VDSM creating or copying preallocated disks cause severe slowdowns on NFS < 4.2 storage domains

  • BZ 1790747 engine can’t display mode 3 bond speed

  • BZ 1856065 [Scale] While create snapshot to VM with 13Disks (Diff SDs) - “dictionary changed size during iteration”

  • BZ 1779527 During hosted engine deploy, vdsm log has: “Failed to connect to guest agent channel”

  • BZ 1850458 Proper block SD teardown

oVirt Engine

  • BZ 1828089 Import data domain from previous RHV version fails

  • BZ 1840732 VM can be started during ofline disk migration when the disk is locked

  • BZ 1839772 [UI] Incorrect total of VMs ,shows under single host detail view

  • BZ 1855377 [CNV&RHV] Add-Disk operation failed to complete.

  • BZ 1860769 Ensure that meaningful messages are logged, when edit cluster properties change and gluster service enabled

  • BZ 1859460 Cannot create KubeVirt VM as a normal user

  • BZ 1839505 WebAdmin UI - remove unregistered entities from attached storage domain - confirmation dialog box text not aligned

  • BZ 1854478 [UI] Inject copy host network failure into the event log UI.

  • BZ 1801206 Possible missing block path for a SCSI host device needs to be handled in the UI

  • BZ 1804253 Block cluster version update if the cluster contains affinity labels with old behavior enabled

  • BZ 1838051 Refresh LUN is using host from different Data Center to scan the LUN

  • BZ 1692355 Memory overcommitted VMs are not scheduled on different hosts

  • BZ 1853909 Update i440fx machine types of existing 4.4 clusters

  • BZ 1845591 Cleanly remove ovirt ga socket requirement.

  • BZ 1830840 [4.4] Wrong bios-type for templates imported from glance server

  • BZ 1854488 [RHV-CNV] - NPE when creating new VM in cnv cluster

  • BZ 1771469 Hot-plug SATA disk from VM fails with error - Validation of action ‘HotPlugDiskToVm’ failed for user admin@internal-authz. Reasons: VAR__ACTION__HOT_PLUG,VAR__TYPE__DISK,ACTION_TYPE_DISK_INTERFACE_UNSUPPORTED,$osName Other OS

  • BZ 1842272 When trying to export VM to a different SD the VM clone creates on the source SD instead.

oVirt dependencies

  • BZ 1851092 Package ovirt-engine missing java dependencies in a RPM

oVirt Engine Data Warehouse

No Doc Update

oVirt Engine

  • BZ 1841195 Hosted Engine deployment fails with restored backup from 4.3.9 when CA renewal is selected

  • BZ 1816951 [CNV&RHV] CNV VM migration failure is not handled correctly by the engine

  • BZ 1802538 When trying to attach backup API disk to backup VM, the disk_attachment href contains “null” instead of “disk_attachment”

  • BZ 1758024 Long running Ansible tasks timeout and abort for RHV-H hosts with STIG/Security Profiles applied

  • BZ 1856339 [CNV&RHV] Add test for the OpenShift API to Provider Test connection

  • BZ 1803856 [Scale] ovirt-vmconsole takes too long or times out in a 500+ VM environment.

  • BZ 1856375 Can’t add additional host as hosted-engine ha-host from “Guide me” from UI.

  • BZ 1826255 [CNV&RHV]Change name of type of provider - CNV -> OpenShift Virtualization

  • BZ 1855221 Setup on separate machine with “manual_files” is broken

oVirt Engine Data Warehouse

  • BZ 1846365 Handle grafana in ovirt-engine-rename


42 people contributed to this release:

Ahmad Khiet
Ales Musil
Amit Bawer
Andrej Cernek
Anton Marchukov
Arik Hadas
Artur Socha
Aviv Litman
Bell Levin
Bella Khizgiyev
Benny Zlotnik
Dana Elfassy
Daniel Erez
Eitan Raviv
Eli Mesika
Eyal Shenitzky
Germano Veit Michel
Jan Zmeskal
Kobi Hakimi
Lev Veyde
Liran Rotenberg
Lucia Jelinkova
Marcin Sobczyk
Martin Nečas
Martin Perina
Milan Zamazal
Nir Soffer
Orcun Atakan
Ori Liel
Radoslaw Szwajkowski
Ritesh Chikatwar
Sandro Bonazzola
Shani Leviim
Sharon Gratch
Shirly Radco
Shmuel Melamud
Steven Rosenberg
Tomáš Golembiovský
Vojtech Juranek
Yedidyah Bar David