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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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ovirt with glusterfs data domain - very slow writing speed on Windows server virtual machine
by lyubomir.grancharov＠bottleshipvfx.com 11 Sep '19

11 Sep '19

Hi folks, I have been experimenting with oVirt cluster based on glusterfs for the past few days. (first-timer). The cluster is up and running and it consists of 4 nodes and has 4 replicas. When I try to deploy Windows Server VM I encounter the following issue: The disk of the VM has ok reading speed ( close to bare metal) but the writing speed is very slow. ( about 10 times slower than it is supposed to be). Can anyone give me any suggestion, please? Thanks in advance! Here are the settings of the glusterfs volume: Volume Name: bottle-volume Type: Replicate Volume ID: 869b8d1e-1266-4820-8dcd-4fea92346b90 Status: Started Snapshot Count: 0 Number of Bricks: 1 x 4 = 4 Transport-type: tcp Bricks: Brick1: cnode01.bottleship.local:/gluster_bricks/brick-cnode01/brick-cnode01 Brick2: cnode02.bottleship.local:/gluster_bricks/brick-cnode02/brick-cnode02 Brick3: cnode03.bottleship.local:/gluster_bricks/brick-cnode03/brick-cnode03 Brick4: cnode04.bottleship.local:/gluster_bricks/brick-cnode04/brick-cnode04 Options Reconfigured: network.ping-timeout: 30 cluster.granular-entry-heal: enable performance.strict-o-direct: on storage.owner-gid: 36 storage.owner-uid: 36 server.event-threads: 4 client.event-threads: 4 cluster.choose-local: off features.shard: on cluster.shd-wait-qlength: 10000 cluster.shd-max-threads: 8 cluster.locking-scheme: granular cluster.data-self-heal-algorithm: full cluster.server-quorum-type: server cluster.quorum-type: auto cluster.eager-lock: enable network.remote-dio: off performance.low-prio-threads: 32 performance.io-cache: off performance.read-ahead: off performance.quick-read: off auth.allow: * user.cifs: off transport.address-family: inet nfs.disable: on performance.client-io-threads: off server.allow-insecure: on Please let me know if you need any more configuration info or hardware specs. best, Lyubo

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Procedure to replace out out of three hyperconverged nodes
by thomas＠hoberg.net 11 Sep '19

11 Sep '19

On my silent Atom based three node Hyperconverged journey I hit upon a snag: Evidently they are too slow for Ansible. The Gluster storage part went all great and perfect on fresh oVirt node images that I had configured to leave an empty partition instead of the standard /dev/sdb, but the HostedEngine setup part would then fail without any log-visible error while the transient VM HostedEngineLocal was supposed to be launched and the Wizard would just show "deployment failed" and go ahead and delete the VM. I then moved the SSD to a more powerful Xeon-D 1541 CPU and after some fiddling with the network (I miss good old eth0!), this also failed the deployment, but also failed to delete the temporary VM image, because that actually turned out to be running: I could even connect to its console and investigate the logs for any clues as to what might have gone wrong (nothing visible): Evidently Ansible was running out of patience just a tiny bit too early. And then I kicked it into high-gear with an i7-7700K again using the same SSD with a working three node Gluster all in sync, which still took what felt like an hour to creep through every step, but got it done, primary node on i7, secondary nodes on Atoms, with full migration capabilities etc. I then had to do some fiddling, because the HostedEngine had configued the Cluster CPU architecture to Skylake-Spectre, but after that I migrated it to an Atom node and was now ready to move the primary to the intended Atom hardware target. But at that point the overlay network has already been configured and evidently it's tied to the device name of the 10Gbit NIC on the i7 workstation and I haven't been able to make it work with the Atom. The Gluster runs fine, but the CPU node is reported "non-operational" and re-installation fails, because the ovirtmgmt network isn't properly configured. That specific issue may be seem way out of what oVirt should support, yet a HA-embedded edge platform may very well see nodes having to be replaced or renewed with as little interruption or downtime as possible, which is why I am asking the larger question: How can you replace a) a failed "burned" node or b) upgrade nodes while maintaining fault tolerance? The distinction in b) would be that it's a planned maneuver during normal operations without downtime. I'd want to do it pretty much like I have been playing with compute nodes, creating new ones, pushing VMs on them, pushing them out to other hosts, removing and replacing them seamlessly... Except that the Gluster nodes are special and much harder to replace, than a pure Gluster storage brick... from what I see I welcome any help - for fixing the network config in my limiping Atom 1:3 cluster - eliminating the need to fiddle with an i7 because of Ansible timing - ensuring long-term operability of a software defined datacenter with changing hardware

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gluster
by mailing-ovirt＠qic.ca 11 Sep '19

11 Sep '19

Hi, I see options to deploy ovirt with gluster during the initial rollout, however I can't seem to find information as to how I can add it following a non gluster initial setup: GlusterFS Version: [N/A] Thanks Simon

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