- Users - oVirt List Archives

Re: Migrate hosted engine to standalone host
by Yedidyah Bar David 20 May '20

20 May '20

On Mon, May 18, 2020 at 1:33 PM Anton Louw via Users <users(a)ovirt.org> wrote: > > > Hello, > > > > I am not sure if the below thread went missing somewhere. Just to add on > as well, when moving the hosted engine to a standalone host, will the > process look similar to the below: > I never tried that, but: > > > Backup and remove Hosted Engine: > > > > 1. Backup Hosted Engine (engine-backup --scope=all --mode=backup > --file=Full --log=Log_Full) > > 2. Download the backup files from HE using WinSCP > > 3. Enable global Maintenance (hosted-engine --set-maintenance > --mode=global) > > 4. Power down hosted engine (hosted-engine --vm-shutdown) > > > > > --------------------------------------------------------------------------------------------- > > Redeploy Hosted Engine: > > > > Build new CentOS VM in another environment > > *Same IP > > *Same name > > *Same resources > > > > 1. sudo yum install > https://resources.ovirt.org/pub/yum-repo/ovirt-release43.rpm > > 2. sudo yum install -y ovirt-engine > > 3. Copy backup files to newly deployed CentOS VM > > 4. engine-backup --mode=restore --file=Full --log=Log_Full --provision-db > --provision-dwh-db --restore-permissions > You might want to pass also --he-remove-storage-vm , and perhaps also --he-remove-hosts . This removes them, obviously, only from the database, does not connect to them or do anything on them. You'll then have to add them again. You will not be able to do that if there are running VMs on them, I think. So: If you need to keep the VMs up, and have some of them on the hosted-engine hosts, do not use these options, but do test very well, and study the bugs for which these options were added - you can check git log for this file searching this: https://github.com/oVirt/ovirt-engine/commits/master?after=3cd2766ae1576b22… https://github.com/oVirt/ovirt-engine/commit/542e4a318584c8601159b4bd6d576f… Bug-Url: https://bugzilla.redhat.com/1240466 Bug-Url: https://bugzilla.redhat.com/1235200 The engine will still think that it's a hosted-engine, so it will likely be confused. Perhaps --he-remove-storage-vm is enough for that. This is likely to be problematic, see above bugs. If you don't need to keep the VMs up, it's probably safer to just take all of them down, pass also --he-remove-hosts, and then, in the new engine, add back the hosts. Or even: Install a new engine, do not restore the backup, add the hosts, and import the storage domains. > 5. after retore has completed, run engine-setup > > > > Or are there any additional steps I need to take? I have tried this in my > one lab environment, and it works without any issues, however when trying > this on my second lab environment, everything shows as “down”, ie. Hosts, > Data Center and Storage Domains. > No idea why they are down. Check engine.log. How long did you wait? Did the engine have access to the hosts? Can you manually ssh to them from the engine machine? Best regards, -- Didi

2 1

locked snapshot after snapshot preview
by Jiří Sléžka 20 May '20

20 May '20

Hi, Ovirt 4.3.9.4-1.el7, CentOS7... colleague of me tried yesterday do a snapshot preview on his vm but operation got stalled. I can see in Task list in Manager operation "Preview VM Snapshot před AD test of VM install_W10_LTSC-REK" in state Finalizing (6 hours ago) In the Events I see May 19, 2020, 4:00:17 PM Failed to complete Snapshot-Preview před AD test for VM install_W10_LTSC-REK. 18acb86e-581c-43f5-bf99-f8d738870976 May 19, 2020, 3:57:40 PM Failed to run VM install_W10_LTSC-REK due to a failed validation: [Cannot run VM. The VM is performing an operation on a Snapshot. Please wait for the operation to finish, and try again.] (User: ******@*********). d892b7dd-741b-4c61-ac37-b1077eaeaf79 When I grepping correlation id from failed run from engine log a got zcat /var/log/ovirt-engine/engine.log-20200520.gz | grep "d892b7dd-741b-4c61-ac37-b1077eaeaf79" 2020-05-19 15:57:40,435+02 INFO [org.ovirt.engine.core.bll.RunVmCommand] (default task-210) [d892b7dd-741b-4c61-ac37-b1077eaeaf79] Lock Acquired to object 'EngineLock:{exclusiveLocks='[2f1fb183-55ea-477c-a75b-625f889e4c79=VM]', sharedLocks=''}' 2020-05-19 15:57:40,489+02 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-210) [d892b7dd-741b-4c61-ac37-b1077eaeaf79] EVENT_ID: USER_FAILED_RUN_VM(54), Failed to run VM install_W10_LTSC-REK due to a failed validation: [Cannot run VM. The VM is performing an operation on a Snapshot. Please wait for the operation to finish, and try again.] (User: kra0002(a)CRO.slu.cz) 2020-05-19 15:57:40,489+02 WARN [org.ovirt.engine.core.bll.RunVmCommand] (default task-210) [d892b7dd-741b-4c61-ac37-b1077eaeaf79] Validation of action 'RunVm' failed for user kra0002(a)CRO.slu.cz. Reasons: VAR__ACTION__RUN,VAR__TYPE__VM,ACTION_TYPE_FAILED_VM_IS_DURING_SNAPSHOT 2020-05-19 15:57:40,489+02 INFO [org.ovirt.engine.core.bll.RunVmCommand] (default task-210) [d892b7dd-741b-4c61-ac37-b1077eaeaf79] Lock freed to object 'EngineLock:{exclusiveLocks='[2f1fb183-55ea-477c-a75b-625f889e4c79=VM]', sharedLocks=''}' greping correlation id on failed snapshot preview shows only INFO events, not ERRORS nor WARNINGS and it looks to me like everything was FINISHed When I try to display locked entities a got cd /usr/share/ovirt-engine/setup/dbutils ./unlock_entity.sh -q -t all -c Locked VMs vm_name | snapshot_id ----------------------+-------------------------------------- install_W10_LTSC-REK | 9d53c7b4-8ec5-4d31-8ab1-16bb75ab8f2b Locked templates template_name | disk_id ---------------+--------- Locked disks vm_id | disk_id --------------------------------------+-------------------------------------- 2f1fb183-55ea-477c-a75b-625f889e4c79 | 707db1f6-0859-48ab-b9d0-a97619ed8b0b Locked snapshots vm_id | snapshot_id --------------------------------------+-------------------------------------- 2f1fb183-55ea-477c-a75b-625f889e4c79 | 9d53c7b4-8ec5-4d31-8ab1-16bb75ab8f2b Illegal images vm_name | image_guid ---------+------------ I am about to try unlock that snapshot but for sure... * how can I be sure that snapshot operations is not still running (it would be nice to have some sort of progress bar o better reporting what is happening in Manager...) * looks it like bug? Should I fill bugreport or publish more logs? Cheers, Jiri

2 1

Host "Unassigned Logical Networks" list is wrong
by Matthias Leopold 20 May '20

20 May '20

Hi, I'm having a special issue with assigning logical networks to host interfaces via label. I'm used to assigning logical networks (tagged VLANs, VM network flag) a "Network label", which I can choose from a drop down menu in the UI dialog. These networks are automatically flagged "assign" and "require" in my cluster and I expect them to be synced to hosts physical interface to which I "drag and dropped" the label. This always seemed to work and I never worried. Now I noticed that when I look at the host "Setup Host Networks" dialog again, that the last(?) logical networks I provisioned as explained above show up as "Unassigned Logical Networks" with a mouse over text of "Network should be assigned to 'foo' via label 'bar'. However for some reason it isn't". This has to be some presentation error, because the networks are in fact assigned which is also visible in the hosts "Network Interfaces" tab. The "Sync All Network" buttons in "Host" - "Network Interfaces" and "Cluster" - "Logical Networks" tabs are inactive. When hosts are put to maintenance and activated again the error disappears. My oVirt version is 4.3.7. Cluster switch type is "Linux Bridge". This may seem a minor error, but since it affects my production clusters and a couple of VLANs I can't afford to play around with host network configuration. Can anybody explain this? Any help would be appreciated. thx Matthias

2 2

[Feedback needed] oVirt 4.4.0 Test week
by Sandro Bonazzola 19 May '20

19 May '20

Hi, oVirt team is planning to release oVirt 4.4.0 Ga in the next couple of weeks. oVirt 4.4.0 release candidate was released yesterday and we'd like to gather as much feedback as possible. Please join us testing this release candidate next week, starting Sunday May 10th 2020 till Friday May 15th 2020! We are going to coordinate the testing effort with a public Trello board at https://trello.com/b/5ZNJgPC3/ovirt-440-test-day You'll find instructions on how to use the board there. For joining the board you can use this link: https://trello.com/invite/b/5ZNJgPC3/f1b1826ee4902f348c44607765a15099/ovirt… If you have not an environment dedicated to testing, remember you can set up a few VMs and test the deployment with nested virtualization using your production environment creating a virtual test environment. In this case please be careful avoiding touching the production environment from the testing one. The oVirt team will monitor the Trello board, the #ovirt IRC channel on irc.oftc.net server and the users(a)ovirt.org mailing list to assist with the testing and debugging issues. Basic instructions for setting up a minimal system are available in release candidate announce at: https://lists.ovirt.org/archives/list/announce@ovirt.org/message/3QORBKVKTA… Release notes for this release candidate are available here: https://ovirt.org/release/4.4.0/ Thanks -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://www.redhat.com/> [image: |Our code is open_] <https://www.redhat.com/en/our-code-is-open> *Red Hat respects your work life balance. Therefore there is no need to answer this email out of your office hours.*

7 14

HostedEngine add more RAM
by Joseph Goldman 19 May '20

19 May '20

Hi List, I'm having troubles adding more RAM to my HostedEngine VM. When the cluster first got up and running I only had a little bit of RAM so I only gave the HE 4GB, but i'm constantly getting BadHealth alerts so I want to up it to 8GB. I have tried multiple ways - mostly any time i edit the HE VM through the UI it simply reverts back to 4096MB RAM, never upgrades to 8192MB. I have tried with global HA maintenance on as well but no luck. No errors, it saves as if it has completed the action but when I re-open the VM (or even after a fresh boot) it has simply reverted back to 4096MB. Any help appreciated. Thanks, Joe

3 5

Re: Migrate hosted engine to standalone host
by Anton Louw 18 May '20

18 May '20

Hello, I am not sure if the below thread went missing somewhere. Just to add on as well, when moving the hosted engine to a standalone host, will the process look similar to the below: Backup and remove Hosted Engine: 1. Backup Hosted Engine (engine-backup --scope=all --mode=backup --file=Full --log=Log_Full) 2. Download the backup files from HE using WinSCP 3. Enable global Maintenance (hosted-engine --set-maintenance --mode=global) 4. Power down hosted engine (hosted-engine --vm-shutdown) --------------------------------------------------------------------------------------------- Redeploy Hosted Engine: Build new CentOS VM in another environment *Same IP *Same name *Same resources 1. sudo yum install https://resources.ovirt.org/pub/yum-repo/ovirt-release43.rpm 2. sudo yum install -y ovirt-engine 3. Copy backup files to newly deployed CentOS VM 4. engine-backup --mode=restore --file=Full --log=Log_Full --provision-db --provision-dwh-db --restore-permissions 5. after retore has completed, run engine-setup Or are there any additional steps I need to take? I have tried this in my one lab environment, and it works without any issues, however when trying this on my second lab environment, everything shows as “down”, ie. Hosts, Data Center and Storage Domains. Anton Louw Cloud Engineer: Storage and Virtualization ______________________________________ D: 087 805 1572 | M: N/A A: Rutherford Estate, 1 Scott Street, Waverley, Johannesburg anton.louw(a)voxtelecom.co.za www.vox.co.za From: Anton Louw via Users <users(a)ovirt.org> Sent: 14 May 2020 14:49 To: users(a)ovirt.org Subject: [ovirt-users] Migrate hosted engine to standalone host Hi All, So I have been playing around a bit, and I would just like some recommendations. I moved my HE from an oVirt node to my VMware environment, basically running as a standalone host now. Is there anything I should look out for? I can see there is a problem when configuring the HE after the move, where it says that global maintenance is not enabled. How will this work if the hosted engine is not sitting on a oVirt node anymore? Any feedback\suggestions will be greatly appreciated. Thanks Anton Louw Cloud Engineer: Storage and Virtualization at Vox ________________________________ T: 087 805 0000 | D: 087 805 1572 M: N/A E: anton.louw(a)voxtelecom.co.za<mailto:anton.louw@voxtelecom.co.za> A: Rutherford Estate, 1 Scott Street, Waverley, Johannesburg www.vox.co.za<http://www.vox.co.za> [F]<https://www.facebook.com/voxtelecomZA> [T]<https://www.twitter.com/voxtelecom> [I]<https://www.instagram.com/voxtelecomza> [L]<https://www.linkedin.com/company/voxtelecom> [Y]<https://www.youtube.com/user/VoxTelecom> [#VoxBrand]<https://www.vox.co.za/fibre/fibre-to-the-home/?prod=HOME> Disclaimer The contents of this email are confidential to the sender and the intended recipient. Unless the contents are clearly and entirely of a personal nature, they are subject to copyright in favour of the holding company of the Vox group of companies. Any recipient who receives this email in error should immediately report the error to the sender and permanently delete this email from all storage devices. This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast Ltd, an innovator in Software as a Service (SaaS) for business. Providing a safer and more useful place for your human generated data. Specializing in; Security, archiving and compliance. To find out more Click Here<https://www.voxtelecom.co.za/security/mimecast/?prod=Enterprise>.

1 0

Convert unmanaged Gluster to managed one
by Николаев Алексей 16 May '20

16 May '20

2 1

ovirt-node-ng-installer-4.4.0-2020051507.el8.iso does not support PREC5 raid controller ?
by bjkelley＠us.ibm.com 16 May '20

16 May '20

Trying to use my dell 2850 as ovirt node the install does not show the raid0 disk pair that ovirt-node-4.3.9 was able to use as install destination. The Installer shows no disk at all in system it has 6 seen by 4.3.9. Thanks Bryan

4 4

oVirt 4.4 new VM cannot be created in the datacenter other than Default?
by bjkelley＠us.ibm.com 16 May '20

16 May '20

So after setup of new DC and Storage and Host at 4.3 as the CPU technology is lower than the Hosted-Engine machine. when I try and create a VM the only DC choice is the Default one. Is this Normal or issue with 4.4? Thanks Bryan

2 1

Bridge not forwarding frames on node.
by s.danzi 15 May '20

15 May '20

Hi to all!I'm having an issue with networks bridges on ovirt node.It's look like this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1279161On VM I have a bridge between a tap device and network interface. On node side the interface is bridged with bond0 vlan 128 (bond0.128 lacp).When I ping an host on the other side of tap device I can see this:Arp request goes from my lan to the tap device on vm. Arp reply return from tap vm and bridge forward this to vm networks interface. Using tcpdump on vm interface on node I can see the arp reply, using tcpdump on bond0.128 or on bridge I can't see the arp reply. Arp request is forwarded from bond0.128 to vm net but arp reply isn't forwarded from vm net to bond0.128. Very strange.....

5 11