September 2017 - Users - oVirt List Archives

Task stuck at "Finalizing"
by Wesley Stewart 22 Sep '17

22 Sep '17

Back when I first installed ovirt a couple months ago, I tried importing VMs through my export domain and one of the VM's got "stuck" in the process. Importing VM Server_BACKUP_20170807_010018 to Cluster OVIRT-Cluster Aug 13, 2017 11:59:29 PM N/A 751cb290-7cb8-4ed7-a4e7-e8b9743cf2dc [image: Inline image 4] Validating Aug 13, 2017 11:59:29 PM until Aug 13, 2017 11:59:29 PM [image: Inline image 5] Executing Aug 13, 2017 11:59:29 PM until Aug 13, 2017 11:59:37 PM [image: Inline image 6] Finalizing I tried running taskcleaner.sh: sudo su postgres ./taskcleaner.sh -R -u postgres -d engine -s /tmp (Found in /usr/share/ovirt-engine/setup/dbutils, oddly it would ONLY run with the -s /tmp, so I am not sure if this is actually running on the correct server). Anyone know of what I can do to clear that task?

1 0

Snapshot removal time
by Troels Arvin 22 Sep '17

22 Sep '17

Hello, I have a RHV 4.1 virtualized guest-server with a number of rather large VirtIO virtual disks attached. The virtual disks are allocated from a fibre channel (block) storage domain. The hypervisor servers run RHEL 7.4. When I take a snapshot of the guest, then it takes a long time to remove the snapshots again, when the guest is powered off (a snapshot of a 2 TiB disk takes around 3 hours to remove). However, when the guest is running, then snapshot removal is very quick (perhaps around five minutes per snapshot). The involved disks have not been written much to while they had snapshots. I would expect the opposite: I.e., when the guest is turned off, then I would assume that oVirt can handle snapshot removal in a much more aggressive fashion than when performing a live snapshot removal? When performing offline snapshot removal, then on the hypervisor having the SPM role, I see the following in output from "ps xauw": vdsm 10255 8.3 0.0 389144 27196 ? S<l 13:40 7:04 /usr/bin/qemu-img convert -p -t none -T none -f qcow2 /rhev/data-center/mnt/blockSD/xxx/ images/yyy/zzz -O raw /rhev/data-center/mnt/blockSD/xxx/images/yyy/ zzz_MERGE I don't see the same kind of process running on a guest's hypervisor when online snapshot removal is in progress. I've read most of https://www.ovirt.org/develop/release-management/ features/storage/remove-snapshot/ My interpretation from that document is that I should expect to see "qemu- img commit" commands instead of "qemu-img convert" processes. Or? The RHV system involved is somewhat old, having been upgrade many times from 3.x through 4.1. Could it be that it carries around old left-overs which results in obsolete snapshot removal behavior? -- Regards, Troels Arvin

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trunk port for vm guest
by Charles Kozler 21 Sep '17

21 Sep '17

Hello, I have seen mixed results for this search on this list so I'd like to clear it up I have a VM that I need to configure with a trunk port so that all of my VLANs can be configured on it but not as separate NICs (eth0, eth1, eth2, etc) I have seen on this list about a year ago someone said to setup a network and leave it untagged and ovirt will pass all tagged and untagged packets there. Then attach this to the guest VM and configure the trunk port inside the VM (eth0:<vlan_tag>) However, I saw also about 6 months ago someone suggest something like VLAN tag 4095 so wondering if the support came in for this...or I should use untagged VM network So - how can I configure a trunk port for a guest VM? Thanks

1 1

oVirt repo errors..
by Alexander Witte 21 Sep '17

21 Sep '17

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How to upgrade self-hosted engine?
by gabriel_skupien＠o2.pl 21 Sep '17

21 Sep '17

In oVirt Engine Web Administration portal I can see option to upgrade the nodes but can't see any option to upgrade hosted-engine itself? What is the recommended procedure for it?

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Cannot change resolution on Ubuntu 16 LTS, using spice
by Филипп Панин 21 Sep '17

21 Sep '17

Hey, i have problem setting resolution higher than 1024x768 on guest using spice xserver-xorg-video - installed spice-vdagent - installed ovirt-guest-agent - installed /var/log/syslog: Sep 21 13:16:48 admin-oVirt-Node kernel: [ 1548.537892] qxl 0000:00:02.0: object_init failed for (8302592, 0x00000002) Sep 21 13:16:48 admin-oVirt-Node kernel: [ 1548.537901] [drm:qxl_gem_object_create [qxl]] *ERROR* Failed to allocate GEM object (8302080, 2, 4096, -12) Sep 21 13:16:48 admin-oVirt-Node kernel: [ 1548.537905] [drm:qxl_alloc_surf_ioctl [qxl]] *ERROR* qxl_alloc_surf_ioctl: failed to create gem ret=-12

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[ANN] oVirt 4.1.7 First Release Candidate is now available
by Sandro Bonazzola 21 Sep '17

21 Sep '17

The oVirt Project is pleased to announce the availability of the First Release Candidate of oVirt 4.1.7, as of September 21st, 2017 This update is the seventh in a series of stabilization updates to the 4.1 series. Starting from 4.1.5 oVirt supports libgfapi [5]. Using libgfapi provides a real performance boost for ovirt when using GlusterFS . Due to a known issue [6], using this will break live storage migration. This is expected to be fixed soon. If you do not use live storage migration you can give it a try. Use [7] for more details on how to enable it. This release is available now for: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.4 or later * CentOS Linux (or similar) 7.4 or later * oVirt Node 4.1 See the release notes draft [3] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is already available - oVirt Live is already available[4] - oVirt Node is already available[4] Additional Resources: * Read more about the oVirt 4.1.7 release highlights: http://www.ovirt.org/release/4.1.7/ * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] https://www.ovirt.org/community/ [2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt [3] http://www.ovirt.org/release/4.1.7/ [4] http://resources.ovirt.org/pub/ovirt-4.1-pre/iso/ [5] http://staged-gluster-docs.readthedocs.io/en/release3.7.0beta1/Features/lib… [6] https://bugzilla.redhat.com/show_bug.cgi?id=1306562 [7] http://www.ovirt.org/develop/release-management/features/storage/glusterfs-… -- SANDRO BONAZZOLA ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA ENG VIRTUALIZATION R&D Red Hat EMEA <https://www.redhat.com/> <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted> <http://www.teraplan.it/redhat-osd-2017/>

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Still running in to problems trying to implement OVN
by Mitchell Smith 20 Sep '17

20 Sep '17

Hi List, I was very happy to see overt added support for OVN recently, and it was a fairly strong factor in choosing overt for our current project, however being a very new feature with very little in the way of publicly available documentation, we are having some difficulties with implementation. I have found a few very good articles on OVN itself and am comfortable with OVN cli for the most part, but translating that in to overt logical networks and NICs is proving to be quite a challenge. As you might remember from one of my earlier posts, we do have some limitations with the current hosting provider also that make our network topology for this project less than ideal, but hopefully with OVN I can get to the desired outcome somehow. So the first fairly big issue we run into relates to the ovirtmgmt network, obviously this is a hard dependency of overt and it can’t be removed. As we only have one physical NIC in each server though, this causes some problems since we can’t also attach OVS to the same NIC as the ovirtmgmt bridge. Ideally we could set up OVN and just plug ovirtmgmt in to that network, but I can’t find any way to do that. Secondly our public IPs each have a specific MAC attached to them, something in the 00:50:56 VMware prefix, I want to add these on OVN and then SNAT them to the VMs internal IP on the 10.x.x.x network, I can work out how to do this on the cli, but not in overt, should I just manually create these interfaces and then get overt to try and import them or similar? As an alternative, am I making this type of network structure to complex by using OVN, and should I think about just creating a private address space using Tinc / PeerVPN / FreeLAN / similar, and then just set up a single VM with multiple interfaces on it acting as a router? To try and explain the network structure a bit better, each server has one physical NIC with a public IP address, each server also has a /29, each individual IP has a MAC associated with it on the vendors firewall. I plan to have a private subnet across the whole cluster managed with OVN, which I will place VMs on. The public IPs will be transparently routed to the private IPs using OVN routers. It’s less than ideal, but those are the constraints we have to work in for this project. My final question is completely off topic for this mostly OVN themed email, but we have also been looking at ScaleIO from EMC, and it looks like a decent solution. We have built our proof of concept environment using Gluster but we are considering ScaleIO for the final implementation, and I was curious if anyone else had tried ScaleIO with overt, and did you find any advantages / disadvantages compared to Gluster? I will end this rather long email here, but if anyone has tried to implement a similar network structure on overt, I would very much appreciate any suggestions you might have for the best way to proceed. Thanks :) Mitch

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Re: [ovirt-users] VM running on multiple hosts
by Yaniv Kaul 20 Sep '17

20 Sep '17

On Sep 20, 2017 9:50 PM, <support(a)jac-properties.com> wrote: This matches about with what we were thinking, thank you! To answer your questions We do not have power management configured due to it causing a cascading failure early in our deployment. The host was not fenced and "confirm host rebooted" was never used. The VMs were powered on via virsh (this shouldn't have happened) The way they were powered on is most likely why they were corrupted is our thought We'd be happy if you could share both engine and host logs, including vdsm.log, engine.log and /var/log/messages from both. Y. Logan On September 20, 2017 at 12:03 PM Michal Skrivanek < michal.skrivanek(a)redhat.com> wrote: On 20 Sep 2017, at 18:06, Logan Kuhn <support(a)jac-properties.com> wrote: We had an incident where a VM hosts' disk filled up, the VMs all went unknown in the web console, but were fully functional if you were to login or use the services of one. Hi, yes, that can happen since the VM’s storage is on NAS whereas the server itself is non-functional as the management and all other local processes are using local resources We couldn't migrate them so we powered them down on that host and powered them up and let ovirt choose the host for it, same as always. that’s a mistake. The host should be fenced in that case, you likely do not have a power management configured, do you? Even when you do not have a fencing device available it should have been resolved manually by rebooting it manually(after fixing the disk problem), or in case of permanent damage (e.g. server needs to be replaced, that takes a week, you need to run those VMs in the meantime elsewhere) it should have been powered off and VM states should be reset by “confirm host has been rebooted” manual action. Normally you should now be able to run those VMs while the status of the host is still Not Responding - was it not the case? How exactly you get to the situation that you were able to power up the VMs? However the disk image on a few of them were corrupted because once we fixed the host with the full disk, it still thought it should be running the VM. Which promptly corrupted the disk, the error seems to be this in the logs: this can only happen for VMs flagged as HA, is it a case? Thanks, michal 2017-09-19 21:59:11,058 INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (DefaultQuartzScheduler3) [36c806f6] VM '70cf75c7-0fc2-4bbe-958e-7d0095f70960'(testhub) is running in db and not running on VDS 'ef6dc2a3-af6e-4e00-aa4 0-493b31263417'(vm-int7) We upgraded to 4.1.6 from 4.0.6 earlier in the day, I don't really think it's anything more than coincidence, but it's worrying enough to send to the community. Regards, Logan _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

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VM running on multiple hosts
by Logan Kuhn 20 Sep '17

20 Sep '17

We had an incident where a VM hosts' disk filled up, the VMs all went unknown in the web console, but were fully functional if you were to login or use the services of one. We couldn't migrate them so we powered them down on that host and powered them up and let ovirt choose the host for it, same as always. However the disk image on a few of them were corrupted because once we fixed the host with the full disk, it still thought it should be running the VM. Which promptly corrupted the disk, the error seems to be this in the logs: 2017-09-19 21:59:11,058 INFO [org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer] (DefaultQuartzScheduler3) [36c806f6] VM '70cf75c7-0fc2-4bbe-958e-7d0095f70960'(testhub) is running in db and not running on VDS 'ef6dc2a3-af6e-4e00-aa4 0-493b31263417'(vm-int7) We upgraded to 4.1.6 from 4.0.6 earlier in the day, I don't really think it's anything more than coincidence, but it's worrying enough to send to the community. Regards, Logan

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