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How do I make delta clones ? OVM (aka Xen) vs Ovirt
by Tim Tuck 15 Sep '19

15 Sep '19

Hi all, I'm new to Ovirt coming from a OVM ( aka Xen ) environment and I'm trying to work out how to do similar things. In my OVM environment I have VMs that are 100GB in size. These VMs are templates that are used for running customer workshops so we create and destroy them quite often. In OVM I can clone 10 x 100GB VM's in about 1 minute, the cloning process just creates a "delta" VM rather than copying the entire 100GB. Those VM's can then be run and the on-disk size of the delta VM grows as it runs and deviates from the master. The same goes for templates, creating a 100GB VM from a template takes only a few seconds. Creating a template from a VM only takes a few seconds. My problem is that I cant seem to do any of this using Ovirt. it appears that there is no way to tell the cloning process " I want 10" like I can in OVM - am I missing something here? In my tests I find that even if a "snapshot" is made, the entire VM is copied rather than creating a delta. Creating a VM from a template is no different in that it copies the entire VM. So... Is it possible for Ovirt to create multiple clones on request ? Can Ovirt do "delta" copies rather than copy the entire VM ? If Ovirt can do these things, how do I set it up to to do that ? Any help appreciated. thanks Tim --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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Virt-Viewer issue
by Lozada, Agustin T 13 Sep '19

13 Sep '19

Im building my first VM in ovirt with gluster and Im getting this issue when I'm opening a console session using virt-viewer. Does anyone has encountered this issue? [cid:image001.png@01D56A15.FECFDAF0]

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Re: VMs stuck at Migrating status in Dashboard- Trying to cancel migration will yield "cannot cancel migration for non-migrating vm"
by Strahil 12 Sep '19

12 Sep '19

Have you marked your host as 'recently rebooted' (or whatever was the name in the UI)? Best Regards, Strahil NikolovOn Sep 12, 2019 18:15, paul.christian.suba(a)cevalogistics.com wrote: > > Saw this problem initially on one host. Host was stuck in entering maintenance mode since it could not migrate a VM from itself. > Manually shutdown that VM and also restarted the host. > After restart, some VMs are stuck in a migrating status while trying to "migrate" to the rebooted host. > > oVirt Node 4.3.1 > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/QFMNWH63FQIVZ…

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oVirt conference 2019 - Rome - October 4th
by Sandro Bonazzola 12 Sep '19

12 Sep '19

The oVirt Italian community <https://www.facebook.com/groups/ovirt.italia/> and Extraordy <https://www.extraordy.com/> in collaboration with Red Hat <https://www.redhat.com>, Oracle <https://www.oracle.com>, and Storware <https://storware.eu/> are pleased to invite you at oVirt Conference 2019 in Rome on October 4th 2019! Tickets are available at https://www.eventbrite.it/e/biglietti-ovirt-conference-2019-innovate-the-da… 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/>*Red Hat respects your work life balance. Therefore there is no need to answer this email out of your office hours.*

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Re: VMs inaccessible from Ubuntu/Debian-based OS
by Strahil 12 Sep '19

12 Sep '19

Hi, I have just tested ovirt VNC console (.vv file) with remote-viewer and it works. Ensure that you have acees to hosts' ports 5900-5999 , as this is the VNC port. Otherwise you can configure noVNC, but it requires port 6100 (based on memory). Best Regards, Strahil NikolovOn Aug 30, 2019 20:22, Souvalioti Maria <souvaliotimaria(a)mail.com> wrote: > > Hello Strahil and thank you for your reply. > > Virt-viewer is installed but mozilla is trying to open the console.vv by remote-viewer. In my understanding virt-viewer and remote-viewer are somewhat the same? (Remote-viewer usin virt-viewer) Should I access the VM's console from the ternimal? I have tried changing the VM's graphics type from spice to spice+vnc but still nothing. All I get is a blank window and a message stating that it cannot access the graphic server. > > Thanks again for your help. > > Maria Souvalioti > > > Sent from BlueMail > On 30 Aug 2019, at 7:48 pm, Strahil <hunter86_bg(a)yahoo.com> wrote: >> >> You need virt-viewer installed on your ubuntu or change console type to spice. >> >> >> Best Regards, >> Strahil NikolovOn Aug 30, 2019 15:35, souvaliotimaria(a)mail.com wrote: >>> >>> >>> Hello all, >>> >>> I'm having an issue the past couple of days. I have tried anything I could find to solve this but with no success. >>> >>> I have a three node ovirt installation, glustered, hyperconverged and there i have a few VMs. The installation is for experimental reasons before we merge it in our DC. Anyway, though I can connect to the VMs' console from Fedora and Windows, I can't from Ubuntu. >>> >>> I have tried installing the browser-spice-plugin that's the corresponding package to spice-xpi and I got no results. >>> >>> I purged the browser-spice-plugin and then I installed the spice-client package, downloaded the spice-xpi from Fedora (FC19) (as instructed in https://www.ovirt.org/develop/infra/testing/spice.html) copied the libnsISpicec.so to /usr/lib/mozilla/plugins and made sure that xserver-xorg-video-qxl and spice-vdagent were installed and in their latest version, and still nothing. >>> >>> No matter what I have tried, I can't gain access to the console. No matter the browser I use, the message I get is "Unable to connect to the graphic server /tmp/mozilla_msouval0/console-1.vv". >>> >>> I have checked the logs and couldn't find anything useful, maybe I'm not checking the right logs? >>> I run tcpdump on both the node the VM is being hosted and the Ubuntu machine I'm using and though on the UBuntu I capture a few packets (6) on both sides but on the Ubuntu side there were 15 packets received by the filter. >>> >>> Could you please guide towards the right way to solve this? Could this be an ntp problem? >>> >>> ovirt node version: 4.2.3.1 >>> Workstation: Jessie >>> >>> (I thought maybe Jessie was too old, and I run the same steps from Ubuntu 14.04 and Ubuntu 16.04, but the problem still remains) >>> >>> Thank you in advance for any help. >>> Maria >>> ________________________________ >>> >>> Users mailing list -- users(a)ovirt.org >>> To unsubscribe send an email to users-leave(a)ovirt.org >>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ >>> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/4VMMYEJNSHGUH…

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Health Warning: Cinnamon toxic when adding EL7 nodes as oVirt hosts
by thomas＠hoberg.net 12 Sep '19

12 Sep '19

Of course a desktop on a virtualization host isn't really recommended, but actually, managing highly or even high-available supports services as VMs on a set of fat workstations under the control of oVirt can be rather useful... And I prefer Cinnamon so much over the other desktops, it gets installed almost first after setup... Which turns out to be a mistake with oVirt. Anyhow, to make a long journey of hair-pulling root-cause searching short: Installing Cinnamon from EPEL has Otopi not find rpmUtils for one reason or another, even if I can see it on both sides, the engine and the target host. Remove Cinnamon, it works again and you can re-install Cinnamon after. I didn't test re-deploys, but I'd expect them to fail. Don't know if this should be a bug report, since Cinnamon very unfortunately doesn't seem official just yet. This is what you may expect to see in the engine logs: 2019-08-22 09:49:24,152+0200 DEBUG otopi.context context._executeMethod:145 method exception Traceback (most recent call last): File "/tmp/ovirt-BAJG2FYLMu/pythonlib/otopi/context.py", line 132, in _executeMethod method['method']() File "/tmp/ovirt-BAJG2FYLMu/otopi-plugins/ovirt-host-deploy/kdump/packages.py", line 216, in _customization self._kexec_tools_version_supported() File "/tmp/ovirt-BAJG2FYLMu/otopi-plugins/ovirt-host-deploy/kdump/packages.py", line 143, in _kexec_tools_version_supported from rpmUtils.miscutils import compareEVR ModuleNotFoundError: No module named 'rpmUtils' 2019-08-22 09:49:24,152+0200 ERROR otopi.context context._executeMethod:154 Failed to execute stage 'Environment customization': No module named 'rpmUtils'

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email
by Mustafa Taha 12 Sep '19

12 Sep '19

mustafa.taha(a)exalt.ps

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Deploying the Self-Hosted Engine Loop
by mustafa.taha.mu95＠gmail.com 11 Sep '19

11 Sep '19

Hi i am trying to deploy self-hot with latest ovirt 4.3 on Centos 7.6.1810 but deploying -first stage of deploy- stick on following logs: [ INFO ] TASK [ovirt.hosted_engine_setup : Set new IPv4 subnet prefix] [ INFO ] skipping: [localhost] [ INFO ] TASK [ovirt.hosted_engine_setup : Search again with another prefix] [ INFO ] ok: [localhost] [ INFO ] TASK [ovirt.hosted_engine_setup : Define 3rd chunk] [ INFO ] skipping: [localhost] [ INFO ] TASK [ovirt.hosted_engine_setup : Set 3rd chunk] [ INFO ] ok: [localhost] [ INFO ] TASK [ovirt.hosted_engine_setup : Get ip route] [ INFO ] changed: [localhost] [ INFO ] TASK [ovirt.hosted_engine_setup : Fail if can't find an available subnet] [ INFO ] skipping: [localhost] can anybody help ?

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Locked Snapshot
by Peter Smith 11 Sep '19

11 Sep '19

Hi, I have been trying to get a backup solution working for my VM's, and have somehow managed to break the snapshot on one of my VM's. I'm still fairly new to oVirt, we're migrating from VMware. I have had this cluster running since May. The cluster: We are running oVirt on CentOS 7, with Hosted Engine. oVirt 4.3.5.4-1.el7 (according to the Help->About in the Admin Console) Hardware is 5 x Dell M620 Blades (300Gb internal storage for host OS) with ISCSI storage for the VM's (Dell M3660i), 10GB Network throughout. The VM in question is allocated 50Gb of storage and there is 461GB free in the storage domain. So I've been playing with bareos 18.2.5 with the ovirt plugin found here https://github.com/eurotux/bareos-contrib/tree/master/fd-plugins/ovirt-plug… I got bareos hooked up to ovirt. It created a snapshot, downloaded it, then at the end it failed to remove the snapshot. I though it may have been because I was looking round bareos while it was doing the backup. Went into oVirt deleted the snapshot no issues. Re ran the backup job in bareos, leaving bareos alone this time. The backup job failed again being unable to remove the snapshot. So I figured I'd go in and delete it, but I get an error saying "Cannot remove Snapshot: The following disks are locked: VM-NAME_vmdisk1. Please try again in a few minutes.". In the Admin console if I expand the disks on the snapshot it shows that the image is locked. And before you ask the bareos user is setup as a SuperUser. If I go to the Events from the menu on the left of the admin console I can see that (Sorry Names/IP's changed to protect the guilty): Sep 10, 2019, 10:42:39 AM Image Download with disk VM-NAME_vmdisk1 succeeded. Sep 10, 2019, 10:42:38 AM VDSM hyper2 command TeardownImageVDS failed: Cannot deactivate Logical Volume: ('General Storage Exception: ("5 [] [\' Logical volume 46a9dfd4-4871-46b2-a740-8fe430c70b4b/bbe315b9-e797-4cf8-b18b-6afeb33589cc in use.\', \' Logical volume 46a9dfd4-4871-46b2-a740-8fe430c70b4b/d3dfa2c2-45fa-4081-98c5-890dd7a5990a in use.\']\\n46a9dfd4-4871-46b2-a740-8fe430c70b4b/[\'bbe315b9-e797-4cf8-b18b-6afeb33589cc\', \'d3dfa2c2-45fa-4081-98c5-890dd7a5990a\']",)',) Sep 10, 2019, 10:22:09 AM Image Download with disk VM-NAME_vmdisk1 was initiated by bareos@internal-authz. Sep 10, 2019, 10:21:55 AM Snapshot 'VM-NAME-backup-1f952494-8245-479e-8d1d-9503d6fe8f9f' creation for VM 'VM-NAME' has been completed. Sep 10, 2019, 10:21:36 AM Snapshot 'VM-NAME-backup-1f952494-8245-479e-8d1d-9503d6fe8f9f' creation for VM 'VM-NAME' was initiated by bareos@internal-authz. Sep 10, 2019, 10:21:36 AM Backup of virtual machine 'VM-NAME using snapshot 'VM-NAME-backup-1f952494-8245-479e-8d1d-9503d6fe8f9f' is starting. Sep 10, 2019, 10:21:36 AM User bareos@internal-authz connecting from '10.*******' using session '****************' logged in. To me it looks like bareos tried to delete the snapshot whilst it was still downloading it, which failed as expected. Does anyone know how to fix/recover from this? If you need log files, please could you tell me which ones? Regards, Peter Smith

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How to change Master Data Storage Domain
by Mark Steele 11 Sep '19

11 Sep '19

Good morning, I have a Storage Domain that I would like to retire and move that role to a new storage domain. Both Domains exist on my current Data Center and I have moved all disks from the existing Data (Master) domain to the new Data Domain. The only thing that is still associated with the Data (Master) domain are two OVF_STORE items: Alias Virtual Size Actual Size Allocation Policy Storage Domain Storage Type Creation Date Attached To Alignment Status Description OVF_STORE < 1 GB < 1 GB Preallocated phl-datastore NFS 2014-Nov-14, 20:00 Unknown OK OVF_STORE OVF_STORE < 1 GB < 1 GB Preallocated phl-datastore NFS 2014-Nov-14, 20:00 Unknown OK OVF_STORE What is the procedure for moving / removing these items and 'promoting' the other Data Domain to Master? Our current version is: oVirt Engine Version: 3.5.0.1-1.el6 (it's old but reliable) Best regards, *** *Mark Steele* CIO / VP Technical Operations | TelVue Corporation TelVue - We Share Your Vision 16000 Horizon Way, Suite 100 | Mt. Laurel, NJ 08054 800.885.8886 x128 | msteele(a)telvue.com | http://www.telvue.com twitter: http://twitter.com/telvue | facebook: https://www.facebook.com/telvue

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