oVirt 4.2.4 Release Notes

The oVirt Project is pleased to announce the availability of the 4.2.4 Release as of June 26, 2018.

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 7.5, CentOS Linux 7.5 (or similar).

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 4.2.4, see the release notes for previous versions.

No Fedora support

Regretfully, Fedora is not supported anymore, and RPMs for it are not provided. At this point, we only try to fix problems specific to Fedora if they affect developers. For some of the work to be done to restore support for Fedora, see also tracker bug 1460625.

EPEL

Don’t enable all of EPEL on oVirt machines.

The ovirt-release package enables the EPEL repositories and includes several specific packages that are required from there. It also enables and uses the CentOS SIG repos, for other packages.

If you want to use other packages from EPEL, you should make sure to use includepkgs and add only those you need avoiding to override packages from other repos.

oVirt 4.2.4 Release Notes

What’s New in 4.2.4?

Release Note

oVirt Engine

BZ 1582527 Enable only strong ciphers from engine to VDSM communication for hosts in cluster level >= 4.2
This change enables only string ciphers for communication between engine and hosts for clusters with cluster level >= 4.2.

Following steps need to performed to apply the change:

1. Newly added hosts
- The change is applied automatically when host is added to engine to clusters with cluster level >= 4.2
- When adding new host to cluster with cluster level 3.6, 4.0 or 4.1 the change is not applied and hosts support all ciphers enabled by underlying libraries

2. Existing hosts
- to apply the change to existing hosts in cluster level 4.2 please follow steps described in [How to apply change] section

3. Moving hosts between clusters
- when host is moved to 4.2 cluster the change is not applied automatically. To apply please follow steps described in [How to apply change] section

How to apply change
To enable only strong ciphers for a host in cluster with cluster levels >= 4.2 following steps need to be applied:

1. Move host to Maintenance using option Maintenance in Management menu inside Hosts view
2. Reinstall the host using option Reinstall in Installation menu inside Hosts view
3. Activate the host after successful reinstallation using Activate option in Management menu inside Hosts view
BZ 1577593 Disable TLS versions < 1.2 for hosts with cluster level >= 4.1
This change disables TLSv1 and TLSv11 for communication between engine and hosts for clusters with cluster level >= 4.1.

Following steps need to be performed to apply the change:

1. Newly added hosts
- The change is applied automatically when host is added to engine to clusters with cluster level >= 4.1
- When adding new host to cluster with cluster level 3.6 or 4.0 the change is not applied and the host supports TLSv1, TLSv11 and TLSv12 protocols

2. Existing hosts
- to apply the change to existing host in cluster level 4.1 or 4.2 please follow steps described in [How to apply change] section

3. Moving hosts between clusters
- when host is moved to 4.1 or 4.2 cluster the change is not applied automatically. To apply please follow steps described in [How to apply change] section

How to apply change
To disable older TLS versions for a host in cluster with cluster levels >= 4.1 following steps need to be applied:

1. Move host to Maintenance using option Maintenance in Management menu inside Hosts view
2. Reinstall the host using option Reinstall in Installation menu inside Hosts view
3. Activate the host after successful reinstallation using Activate option in Management menu inside Hosts view

Enhancements

oVirt Engine

BZ 1549030 Update neutron binding after VM migration with info from caps
When a port is created/updated, it’s “binding:host_id” attribute should be updated with the id of the provider driver id (for example OVN chassis id) reported during get_caps.
The port for which the binding has been reported, requires the binding to be set on every consecutive host it moves to. This could be a problem when migrating from a 4.2.2 level host to an earlier one.
Hosts before that do not report the host_id. When no provider driver id is reported, the “binding:host_id” is not set, and the value from the previous host will be kept. To fix this, the older hosts need to be updated with a newer version of the provider driver.
BZ 1539765 Auto-Sync - network rename on provider does not trigger rename in engine
Feature: External network rename on provider is reflected in engine

Reason: The name of an external network in engine should be consistent with the name of the same network on the provider.

Result: Renaming an external network on the provider is reflected in engine.
BZ 1098612 [donstream clone 4.2.4] [RFE] filter for “Allocation Policy” in Disks search
BZ 1242822 [RFE] filter for “Allocation Policy” in Disks search
BZ 1251468 [RFE] Additional warning when removing required networks
BZ 1593653 [downstream clone - 4.2.4] [RFE] virtio nics are reported as ‘1gbit’ nics, and should be ‘10gbit’
BZ 1587884 [downstream clone - 4.2.4] [RFE] Include storage domain UUID in Storage Domain ‘General’ tab
BZ 1579302 support more granularity in cluster cpu types
Feature:
Support distinguishing cpus also by features they support, not just by model.

Reason:
If a new CPU feature is important, it is important to be able to distinguish if the CPU with some model also supports this feature and than require this feature also for VMs.

Result:
Now, it is possible to distinguish CPUs also by features and require them for the VMs. CPU types take additional flags in addition to their libvirt name. Like e.g. SandyBridge, you can specify custom CPU as “SandyBridge,+xyz” or “SandyBridge,-xyz” to add or remove arbitrary individual CPU flags in addition to what the named model contains.
BZ 1577901 [RFE] add content type column to disk table

oVirt Engine Appliance

BZ 1582507 [downstream clone - 4.2.4] [RFE] Add ovirt-engine-extension-aaa-ldap-setup and ovirt-engine-extension-aaa-ldap to RHV-M Image

oVirt Host Dependencies

BZ 1579210 [downstream clone - 4.2.4] add cockpit-machines-ovirt to RHVH hosts
The cockpit-machines-ovirt plugin (https://cockpit-project.org/guide/latest/feature-ovirtvirtualmachines) has been added to Red Hat Enterprise Linux hosts and Red Hat Virtualization Hosts.

Rebase: Bug Fixeses and Enhancementss

oVirt Engine

BZ 1585157 [downstream clone - 4.2.4] [UI] - VM’s network interface name and icon too large and wrap

Bug Fixes

oVirt Engine

BZ 1583619 [downstream clone - 4.2.4] [SCALE] Listing users in Users tab overloads the postgresql DB (CPU)
BZ 1579719 Geo-Replication failing to kick off geo-rep session daily, when the same volume is used for two different sessions and one gets destroyed.
BZ 1578257 Unable to schedule a Snapshot of a Gluster volume
BZ 1574191 SyncNetworkProviderCommand fails on NPE if Provider is DNP of a Cluster with no DC
BZ 1574451 UI exception seen in ovirt-engine

VDSM

BZ 1584523 [downstream clone - 4.2.4] [HE] Failed to deploy RHV-H on Hosted engine
BZ 1576442 KeyError: ‘sizeTotal’ in gluster volume status monitoring
BZ 1576675 RHV import fails if VM has an unreachable floppy defined

oVirt Engine Metrics

BZ 1572508 fluentd unable to connect keeps retrying every 3 minutes

ovirt-engine-dwh

BZ 1576937 Value too long for type character varying(50) for host_interface_configuration and vm_interface_configuration

oVirt Hosted Engine HA

BZ 1583712 hosted-engine metadata are not correctly read and write on hosts set into maintenance mode from the engine
BZ 1557793 ovirt-hosted-engine-cleanup takes too much time

oVirt Hosted Engine Setup

BZ 1576310 [OVN] - [HE] - ovn tunnel is not created if central hostname resolved as 127.0.0.1 in hosts file
BZ 1557793 ovirt-hosted-engine-cleanup takes too much time
BZ 1557775 [RFE] During deployment, verification is missing for wrong NFS path.

imgbased

BZ 1568414 missing lvm filter causing “nodectl check” to fail to verify thinprovisioned local lv metadata

Other

oVirt Engine

BZ 1585990 Empty cluster from upgraded 4.1 engine does not have Cluster CPU Type set
BZ 1585950 [downstream clone - 4.2.4] Live Merge failed on engine with “still in volume chain”, but merge on host was successful
BZ 1585455 [downstream clone - 4.2.4] Move disk failed but delete was called on source sd, losing all the data
BZ 1576377 engine-setup rewrites SSL*File options
engine-setup now checks if apache httpd’s ssl.conf file needs updates also on upgrades, prompts accordingly, and applies the updates as needed. Now, only parameters that actually require a change are changed - specifically, manual user changes to SSL certificates are not overridden.

doc team: Please see bug 1558500 and comment 0 of current.

Copied doc text from that bug and added a statement. Feel free to rewrite however you find best.

Also, “parameters that actually require a change” are currently only a single one, “SSLProtocol”. So if you want to be more specific than we tried to be in the past (and in the code), it’s enough to:

engine-setup now only updates SSLProtocol in apache httpd’s ssl.conf file, if needed, and not other parameters.
BZ 1553112 NumberFormatException importing VMWARE ova
BZ 1581701 The custom serial number policy does not work in 4.2
BZ 1515877 Unable to define QoS for the 10Gbit interface
BZ 1582822 [UI] - Interface name is gone in the Network Interfaces sub tab
BZ 1574508 Space used icon in RHV-M not showing the actual space
BZ 1578763 [downstream clone - 4.2.4] Unreachable ISO/Export SD prevents hosts from activating
BZ 1584885 VM remains migrating forever with no Host (actually doesn’t exist) after StopVmCommand fails to DestroyVDS
BZ 1583579 [downstream clone - 4.2.4] Very slow UI if Host has many (~64) elements (VFs or dummies or networks)
BZ 1573216 non-VM network appears in the new vNIC profile drop down
BZ 1573462 wrong SinglePciQxl initialization during import from OVF
BZ 1561865 [Code Change] - Validate duplicate MACs on unset ‘Allow Duplicates’ and transaction rollback fix
BZ 1585013 [downstream clone - 4.2.4] ovirt-engine loses track of a cancelled disk
BZ 1571849 USB controllers not written to snapshots
BZ 1573145 Update hosts and vms receive_rate_percent and transmit_rate_percent network statistics precision
Cause:
The precision of the rx_rate, tx_rate of virtual and host network interfaces has been increased on the engine db.

Consequence:
This requires updating the dwh precision for better reporting.

Fix:
Update hosts and vms receive_rate_percent and transmit_rate_percent network statistics precision

Result:
Hosts and vms receive_rate_percent and transmit_rate_percent network statistics precision was increased on DWH.
BZ 1590185 MAC pool ranges off by one
BZ 1583491 [UI] - Align the (mbps)/(bytes) in network’s statistics
BZ 1550099 [RFE] - [SR-IOV] Network Interfaces sub tab - Add button ‘Show VFs/Hide Vfs’
BZ 1585039 [downstream clone - 4.2.4] Live Storage Migration continued on after snapshot creation hung and timed out
BZ 1576382 no VM name validation on import from OVF
BZ 1574480 vGPU: Webadmin should reject VM snapshot creation when using mdev_type hook.
BZ 1578276 [engine-setup] PostgreSQL conf verification text is broken
BZ 1558614 OVA import does not set CPU topology correctly.
BZ 1568305 empty vNIC profiles tab in edit Network dialog
BZ 1539589 ovn localnet - On OVS cluster don’t allow to attach VM networks to VM
BZ 1551910 [ja_JP] Text truncation observed on compute -> hosts -> network interfaces -> setup host networks page.
BZ 1543062 Auto-sync - additional OVN cluster on DC does not consume OVN network as expected
BZ 1583486 Block renaming/modifying name of external provider
BZ 1552449 [UI] - Adjust VM’s vNIC panel to the exact size of the host’s NIC panel and align vNIC’s icons to the center
BZ 1491155 [Text] Report owner(s) of colliding MAC address if already in use
BZ 1565523 engine-backup(8) man page is not up-to-date with engine-backup features
BZ 1570383 [PPC] Webadmin doesn’t expose sPAPR VSCSI disk interface in disk creation prompt that is initiated from within VM creation prompt
BZ 1565534 [UI] - Reverse the title and the entity on the NIC panel - MAC, Statistics and for the new vNIC design
BZ 1483846 [UI] - Adjust the VM’s vNIC panel to be similar to the new host NIC panel information design
BZ 1572157 bad checkbox spacing in Logical Networks > New > Cluster
BZ 1570919 [CodeChange][i18n] oVirt 4.2.4 translation pull
BZ 1541917 [ja_JP] Text alignment correction needed on compute -> hosts -> new -> network provider window
BZ 1551994 [All_LANG except zh,ko] Text truncation observed on networks -> networks -> import page.
BZ 1586023 Guarenteed space differing under storage domains in the RHV-M
BZ 1587885 [downstream clone - 4.2.4] [RFE] Need a way to track how many logical volumes consumed in a storage domain and alert when it gets full
The storage domain’s General sub-tab in the Administration Portal now shows the number of images on the storage domain under the rubric “Images”, this corresponds to the number of LVs on a block domain.
BZ 1582160 Unable to obtain a template list of a storage domain
BZ 1583562 Failed to active host after upgrade (host was in PreparingForMaintenance before upgrade)
BZ 1583664 After update “provider_binding_host_id” table doesn’t exist, hosts are stuck in Activating state
BZ 1579102 VM can be started while ISO is still uploading
BZ 1506473 [disk content type] the default filtering is ‘All’ and the button of ‘All’ should also be selected after reloading RHV
BZ 1506468 [disk content type] The disk default content type is ‘All’ and the button should be set to ‘All’ as well
BZ 1572071 API SDK doesn’t provide search method in external providers
BZ 1585456 [downstream clone - 4.2.4] ovirt-engine fails to start when having a large number of stateless snapshots
BZ 1582826 [UI] - When opening the setup networks dialogue it is taking few seconds to load the host interfaces
BZ 1572148 Fencing takes too long when first agent is unreachable
BZ 1574862 Vague message on failure in upgrade of compatibility level on cluster
BZ 1581158 Live Storage Migration releases lock twice
BZ 1560553 VMs imported from OVAs miss properties compared to ones imported from an export domain
BZ 1575596 /vm/affinitylabels should return the same as /affinitylabels
BZ 1568669 404 response when query for VM’s sessions if a session already opened with a user account
The bug happens when getting user information to set within the session object. This is wrong to begin with, because the convention in the API is to return the data of the entity which is being retrieved, and only links to referenced entities, not their contents. So the fix to this bug will result in only the link to the user set within the session, and this should obviously work for both admin and non-admin users.
BZ 1514374 oVirt webadmin StorageQoS input letters still could click confirm.
BZ 1579909 Cannot start VM with QoS IOPS after host&engine upgrade from 4.1 to 4.2
Vdsm uses the domain metadata section to store extra data which is required to configure a VM but not properly represented on the standard libvirt domain.
This always happens when a VM starts.
Vdsm tried to store the drive IO tune settings in the metadata, which was redundant because the IO tune has already a proper representation.
Furthermore the implementation of the store operation of the IO tune settings had an implementation bug, which made it not possible to succesfully start the VM.
This bug appears only if IO tune settings are enabled.
BZ 1563567 Change CD dialog lists isos in non-ordered way, dialog list too small
BZ 1578756 Importing an OVA made in ovirt failed on extract disks (ExtractOvaCommand)
BZ 1578416 Register a partial Template with allow_partial flag throws an exception
BZ 1573091 Do no force DB patch version and settings in setup for remote databases.
engine-setup now allows using a remote PostgreSQL database with a different Z version - e.g. 9.5.9 client (the engine machine) can use a 9.5.8 remote database server.

engine-setup also allows forcing it to ignore all PostgreSQL sanity/configuration checks.

Doc team: See also comment 6 for latter. I’d rather not include the details in the doc text.

For oVirt I added text to engine-setup developer guide.

For RHV we might want a KB article.
BZ 1557770 Webadmin-imageIO - ‘Cancel’ option should be removed from download disk
BZ 1573865 [WebAdmin] Move disk dialog displays orange container for warning message even when it is empty
BZ 1585454 [downstream clone - 4.2.4] Uploaded image: Virtual Size of qcow2 image is not reflected at guest OS level
BZ 1573913 upload image dialog - test connection button should be displayed for any DC
BZ 1571154 vdsm reports to engine the local host network address IPv4 and IPv6 during the VM launch
BZ 1571323 Create template fail sometimes
BZ 1566393 When registering a VM that has disks on detached SD, error appears in engine.log, showing null as the SD name
BZ 1572067 can’t search in external providers

VDSM

BZ 1583045 Failed to add a second host after a successful deployment due to a name clash on vdsm python module
BZ 1570349 After upgrade from 4.1 to 4.2.3 vm disk is inactive and vm nic is un-plugged
BZ 1591667 [downstream clone - 4.2.4] Live storage migration completes but leaves volume un-opened.
BZ 1534197 After updating to current RHV-H, vdsmd consistently fails to start on startup.
BZ 1585030 [downstream clone - 4.2.4] RAW-Preallocated disk is converted to RAW-sparse while cloning a VM in file based storage domain
BZ 1568696 Failed to convert app: [[Ljava.lang.Object;] warning appear in engine.log
BZ 1567603 [CodeChange] Cleanup create snapshot code after requiring qemu > 2.10
BZ 1579909 Cannot start VM with QoS IOPS after host&engine upgrade from 4.1 to 4.2
Vdsm uses the domain metadata section to store extra data which is required to configure a VM but not properly represented on the standard libvirt domain.
This always happens when a VM starts.
Vdsm tried to store the drive IO tune settings in the metadata, which was redundant because the IO tune has already a proper representation.
Furthermore the implementation of the store operation of the IO tune settings had an implementation bug, which made it not possible to succesfully start the VM.
This bug appears only if IO tune settings are enabled.
BZ 1580478 Vdsm should support hotunplug by Alias
BZ 1565002 Check vdsmd status before starting rpm upgrade

oVirt Engine Metrics

BZ 1585963 Error in collectd 05-global-configuration.conf file - missing end of line
BZ 1573784 Deprecation warning in fluentd forward plugin

ovirt-engine-dwh

BZ 1586011 ovirt-engine-provisiondb should not try to connect to databases
BZ 1573145 Update hosts and vms receive_rate_percent and transmit_rate_percent network statistics precision
Cause:
The precision of the rx_rate, tx_rate of virtual and host network interfaces has been increased on the engine db.

Consequence:
This requires updating the dwh precision for better reporting.

Fix:
Update hosts and vms receive_rate_percent and transmit_rate_percent network statistics precision

Result:
Hosts and vms receive_rate_percent and transmit_rate_percent network statistics precision was increased on DWH.

oVirt Hosted Engine HA

BZ 1585028 [downstream clone - 4.2.4] RHV-H 4.2.3: hosted-engine agent fails to start after upgrade due to Permission denied: ‘/var/log/ovirt-hosted-engine-ha/broker.log’ ‘/var/log/ovirt-hosted-engine-ha/agent.log’

oVirt Hosted Engine Setup

BZ 1578418 Checks on bond mode are not effective
BZ 1594024 [HE] Failed to deploy hosted engine over NFS on updated rhel7.5 with ansible 2.6
BZ 1578404 Fetch engine logs from the engine VM
BZ 1573074 The deployment fails on create_storage_domain stage when using generated answers
BZ 1576451 ovirt-hosted-engine-cleanup must undefine the HostedEngine VM

cockpit-ovirt

BZ 1582579 Using a new device for creating non vdo volume is being blocked
BZ 1583637 HE Wizard - General error message displayed with no field-specific errors

oVirt Engine SDK 4 Java

BZ 1434834 Implement automatic SSO token renew
BZ 1571648 Detailed message in Error SDK

oVirt Log Collector

BZ 1573143 Collect ovirt-provider-ovn logs.

OTOPI

BZ 1574433 “Invalid data received during bootstrap” errors do not log the invalid data

oVirt Provider OVN

BZ 1580254 removing routers external_gateway by port leaks static_routes
BZ 1559056 Provider does not check if generated port MAC address is already assigned

imgbased

BZ 1585028 [downstream clone - 4.2.4] RHV-H 4.2.3: hosted-engine agent fails to start after upgrade due to Permission denied: ‘/var/log/ovirt-hosted-engine-ha/broker.log’ ‘/var/log/ovirt-hosted-engine-ha/agent.log’
BZ 1589544 [HE] host-deploy fails to start vdsmd on node/rhel-h
BZ 1534197 After updating to current RHV-H, vdsmd consistently fails to start on startup.

oVirt Node

BZ 1534197 After updating to current RHV-H, vdsmd consistently fails to start on startup.

No Doc Update

VDSM JSON-RPC Java

BZ 1571768 Connections shouldn’t be closed after the connection to the host was recovered

oVirt Engine

BZ 1422428 [fr-FR] Admin portal->Quota: measurements units are mixed up (GB in English and Go in French all mixed up).
BZ 1542341 [fr, de, es] A button label on administration ->quota -> add page is getting truncated.
BZ 1542880 [fr, es, pt_BR, ja] Text alignment correction needed on compute -> virtual machines -> affinity groups -> new page
BZ 1541309 [ja_JP] Text Positioning needs to be adjusted on Administration -> Quota -> add screen.
BZ 1541348 [ja, zh_CN, ko] Text positioning needs to be adjusted on Administration - Configure -> scheduling policy -> new page
BZ 1576752 Number of “Prestarted VMs” is ignored and all VMs of Pool starts after editing existing Pool.
BZ 1582356 UI hangs with NPE while trying to migrate VM in Powering Up status

oVirt Hosted Engine HA

BZ 1571119 [HE] - Engine complaining that the ‘VM HostedEngine is down with error. Exit message: resource busy: Failed to acquire lock: Lease is held by another host.’
BZ 1582489 Memory leak, at least 7.31 KB per minute

oVirt Hosted Engine Setup

BZ 1572542 argument vlan_tag is of type <type ‘str’> and we were unable to convert to int: invalid literal for int() with base 10: ‘8000\\n1’"}”