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New Ovirt installation on existing Ovirt
by yevhen.kyrylchenko＠gmail.com 25 Jan '23

25 Jan '23

Hi! I have a strange idea - I try to create a small Ovirt test lab on my existing Ovirt infrastructure. I have two real Ovirt hosts: host01 - 192.168.1.10/24, GW 192.168.1.1 host02 - 192.168.1.11/24, GW 192.168.1.1 I created VM on which I want to install new Ovirt instance: v_host01 - 192.168.1.100, checked Pass-Through Host CPU. During deployment hosted engine on v_host01 (lets say v_he - 192.168.1.110), Ovirt creates temporary bridge with random IP and hosted engine VM can comunicate through that bridge. After successful deployment this HE VM has assigned static IP 192.168.1.110. And now communication is possible only between v_host01 and v_he... I can't reach network from v_he further than v_host01 and can't reach v_he from hosts other than v_host01. Seems than bridge on v_host01, created during deployment doesn't want to forward traffik... Do you have any ideas what should I check? Regards!

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Regenerate DWH ovirt_engine_history
by Diego Ercolani 24 Jan '23

24 Jan '23

Hello to all and happy new year. My question is "simple". I need to "reset" the ovirt_engine_history database. I tried to use: engine-setup --reconfigure-optional-components after removing: - ovirt_engine_history - set to "False" OVESETUP_DWH_CORE/enable=bool:True OVESETUP_GRAFANA_CORE/enable=bool:True in /etc/ovirt-engine-setup.conf.d/20-setup-ovirt-post.conf (obviously all in "Global Maintenance") currently I have a system where I have an initialized ovirt_engine_history but no engine is writing in it. I tried to follow (in some manner): https://www.ovirt.org/documentation/data_warehouse_guide/ In the ovirt engine's log there is no exception... so I cannot address the issue. I need help to reinitialize the db... I don't need the history.. only from now on. Thank you for your help but no one is

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cluster level - features
by marek 24 Jan '23

24 Jan '23

hi, do you have tips where can i find information about new features in cluster levels? i found only https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/ht… there is only information "there are new features" hard way i tried check https://www.ovirt.org/release/4.5.0/ and found https://bugzilla.redhat.com/show_bug.cgi?id=2021545 - Detecting if scratch disks can be extended automatically - Detecting if host support disk format conversion - Maybe for using qcow2 format by default to enable incremental backup by https://bugzilla.redhat.com/show_bug.cgi?id=2033185 - e1000e is there some "central" place ? Marek

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ovirt upgrade - Failed to execute stage 'Misc configuration' FATAL: Ident authentication failed for user "root"
by marek 24 Jan '23

24 Jan '23

upgrade from ovirt 4.4.4 to 4.5.5 engine-setup 2023-01-24 00:35:17,885+0100 DEBUG otopi.context context._executeMethod:145 method exception Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/otopi/context.py", line 132, in _executeMethod method['method']() File "/usr/share/ovirt-engine/setup/bin/../plugins/ovirt-engine-setup/ovirt-engine-grafana-dwh/db/default_privileges.py", line 51, in _misc_set_default_privileges user=self.environment[ogdwhcons.GrafanaDBEnv.USER], File "/usr/share/ovirt-engine/setup/ovirt_engine_setup/engine_common/database.py", line 1808, in setDefaultPrivilegesReadOnlyForUser ownConnection=True, File "/usr/share/ovirt-engine/setup/ovirt_engine_setup/engine_common/database.py", line 249, in execute database=database, File "/usr/share/ovirt-engine/setup/ovirt_engine_setup/engine_common/database.py", line 182, in connect sslmode=sslmode, File "/usr/lib64/python3.6/site-packages/psycopg2/__init__.py", line 127, in connect conn = _connect(dsn, connection_factory=connection_factory, **kwasync) psycopg2.OperationalError: FATAL: Ident authentication failed for user "root" FATAL: Ident authentication failed for user "root" 2023-01-24 00:35:17,886+0100 ERROR otopi.context context._executeMethod:154 Failed to execute stage 'Misc configuration': FATAL: Ident authentication failed for user "root" FATAL: Ident authentication failed for user "root" any tips? Marek

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Disaster recovery failed with direct lun 4.4.10
by jaime luque 23 Jan '23

23 Jan '23

Good night I am configuring the disaster recovery with the following environment Ovirt 4.4.10 Site A An external manager A hypervisor server Site B An external manager A hypervisor server *Mons are being replicated from one storage to another with the conditions mentioned in the active passive guide. In the File disaster_recovery_vars.yml **** The mapping of the virtual machines is carried out, one of these has direct luns When I execute the failover the virtual machines are not importing in the secondary site. If I comment on the mapping of the direct luns, it is possible to import the virtual machines and they remain working correctly. NOTE: The direct lun that the vm has is without format or partition, since I am in the testing phase. Can you please give me ideas of what to check.

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pass-through CPU
by duparchy＠esrf.fr 23 Jan '23

23 Jan '23

Hi, What are the pro and cons of enabling pass-through CPU ? It is a greyed option for a VM, unless specific host(s) is/are selected. That's the thing : it's possible to select all hosts..., so, it does not make difference w/ "Start on any host" option

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VM backup issue on oVirt 4.4.7
by Don Dupuis 23 Jan '23

23 Jan '23

Hello, I am having an issue backing up vms using the backup_vm.py example script. The error I get is below: [ 0.0 ] Starting full backup for VM 'c656db00-065c-4fd0-b8b9-74a86dc864fc' Traceback (most recent call last): File "/opt/riva-config/backup_vm.py", line 547, in <module> main() File "/opt/riva-config/backup_vm.py", line 146, in main args.command(args) File "/opt/riva-config/backup_vm.py", line 160, in cmd_full backup = start_backup(connection, args) File "/opt/riva-config/backup_vm.py", line 348, in start_backup description=args.description File "/usr/lib64/python3.6/site-packages/ovirtsdk4/services.py", line 34151, in add return self._internal_add(backup, headers, query, wait) File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 232, in _internal_add return future.wait() if wait else future File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 55, in wait return self._code(response) File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 229, in callback self._check_fault(response) File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 132, in _check_fault self._raise_error(response, body) File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 118, in _raise_error raise error ovirtsdk4.Error: Fault reason is "Operation Failed". Fault detail is "[Cannot backup VM. Host (vsh001) is running on a version lower than 4.4.5. Please upgrade the host in order to use incremental backup.]". HTTP response code is 409. The strange this is that I am running oVirt 4.4.7. What component is it complaining about that is not up to version needed? Any help on this would be appreciated. oVirt rpm is ovirt-host-4.4.7-1.el8.x86_64. I plan on upgrading to version 4.4.10 but want to get this fixed first. I also can't got to 4.5.x because I have problems with Windows 10 vms and vGPUs. Thanks Don

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Hosted-Engine Down VSDM Cert Expired
by jarredm＠ecboces.org 22 Jan '23

22 Jan '23

Hey all, I'm looking to get a bit of guidance here. As the subject suggests, we have a hosted-engine ovirt cluster. I ran into an issue trying to login to the web interface. I was seeing errors about certificate expiration, although I didn't know what cert it was referring to at the time. I ssh'd to the hosted-engine and restarted it. However, once it shutdown, it was unable to start again. What I've discovered so far is that the hosted-engine is currently residing on node 33 (storage is on a gluster volume) and the vdsm certificate for that node has expired. There are three nodes in total, and two of them have expired certs. However, one of them has a valid cert still. I'm able to run vdsm-client commands on that node. Although I haven't done anything with that yet other than to verify that I'm able to do some of the Host get* commands successfully. I'm wondering if it is possible to "pull" the hosted-engine onto this host and fire it back up there. Thanks in advance for your help! I'm gathering log info etc as described and it will be available here: https://drive.google.com/drive/folders/1cBPrN8SuIR-dgnpRKe1eKXRZZTPPshyJ?us… Version info: Installed Packages centos-release-gluster8.noarch 1.0-1.el8 @extras centos-release-storage-common.noarch 2-2.el8 @extras glusterfs.x86_64 8.6-2.el8 @centos-gluster8 ovirt-release44.noarch 4.4.8.3-1.el8 @@commandline vdsm.x86_64 4.40.80.6-1.el8 @ovirt-4.4

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Re: Cannot prepare internal mirrorlist
by ahmad.hidayat＠singtel.com 22 Jan '23

22 Jan '23

Good day Nathan! Firstly, it's polite for me to thank the moderators for approving my post.. Thank you for guiding me on this. I have configured the /etc/environment and /etc/yum.conf with the proxy configurations then curl the mirrorlist site and it was successful. Our KVM is behind a firewall, do we need to allow the traffic for a specific range of IP addresses for this? Regards, Hidayat

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ovirtsdk4 python - global maintenance
by yevhen.kyrylchenko＠gmail.com 20 Jan '23

20 Jan '23

Hi! I know how to set global maintenance mode using python SDK, something like vms_service.vm_service(vm.id).maintenance(maintenance_enabled=True) on HostedEngine. But now I try to find if global maintenance is enabled. And I'm going to give up - I can't find how to do it in documentation... Is there a way to get this info? Regards!

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