- Users - oVirt List Archives

Beginning oVirt / Hyperconverged
by email＠christian-reiss.de 25 Nov '19

25 Nov '19

Hey folks! Quick question, really: I have 4 servers of identical hardware. The documentation says "you need 3", not "you need 3 or more"; is it possible to run hyperconverged with 4 servers (in same rack, let's neglect the possibility of 2 failing servers (split brain))? Also: I have a nice seperate server (low power footprint, big on cpu (8) and has 32gb ram)-- would love to use this as engine server only. Can I initiate a hyperconverged system with 4 working host starting from a stand-alone engine? Or does "hyperconverged" a must for HA engine on the cluster? One last one: Installing ovirt nodes, obviously. This will by default create a lvm across the entire RAID volume; can I simply create folders (with correct permissions) and use those as gluster bricks? Or do I need to partition the RAID in a special way? Thanks for your pointers, Chris.

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Windows 2019 Server - Memory Usage
by Joseph Goldman 25 Nov '19

25 Nov '19

Hi List, My Windows Server 2019 installs dont seem to report memory usage to the ovirt engine. They have the ovirt-guest-agent installed, is there something else I need to do to get them reporting back to the engine/hypervisor? Thanks, Joe

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VM Lock state location
by Joseph Goldman 25 Nov '19

25 Nov '19

Hi *, Trying to figure out where a VM's lockstate is stored. I have a few VM's that seem to be stuck in lock state. I have done an ./unlock_entity.sh -t all, and a -q gives me nothing in a lock state. I have jumped on psql DB direct and looked through as many tables as I can looking for a locked status, everything seems fine. In the engine, on these VM's if I try to do any actions I get a message similar to: 'Failed to Acquire Lock to object 'EngineLock:{exclusiveLocks='[6c2fc524-2f13-4cad-9108-347be2e88d1a=VM]', sharedLocks=''}'' When this issue first started, I was trying to do backups with snapshots, I got a lot of messages similar to this: /var/log/ovirt-engine/engine.log-20191121.gz:2019-11-20 11:44:30,441+10 WARN [org.ovirt.engine.core.bll.lock.InMemoryLockManager] (EE-ManagedThreadFactory-engineScheduled-Thread-41) [6cafc1ef] Trying to release a shared lock for key: '6 c2fc524-2f13-4cad-9108-347be2e88d1aVM' , but lock does not exist /var/log/ovirt-engine/engine.log-20191121.gz:2019-11-20 11:44:30,441+10 INFO [org.ovirt.engine.core.bll.storage.disk.image.TransferImageStatusCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-41) [6cafc1ef] Lock freed to object ' EngineLock:{exclusiveLocks='', sharedLocks='[6c2fc524-2f13-4cad-9108-347be2e88d1a=VM, ab5d4e18-f0c6-4472-8d2e-8c3bd1ff1a6a=DISK]'}' I have made sure there is nothing in async_tasks, commands and the _entities tables for both. There was some command_entities, but I took a backup of the engine and decided to run a delete on that table (There was about 5 stuck records there) but that hasn't helped The affected VMs, cant delete snapshots, cant delete their disks, cant delete the VM, cant boot the VMs - they are just stuck in the engine. My ultimate question is, where is the engine looking up that lockstate as I believe it is stuck locked in error, so I can go there and manually force a removal of the lock state and at least delete these VM's - as ultimately I have cloned them to get the VM's back up and running. Can anyone point me in the right direction? Willing to pay consulting fee if you believe you have the answer for this one. Thanks, Joe

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oVirt Admin Portal unaccessible via chrome (firefox works)
by Strahil Nikolov 24 Nov '19

24 Nov '19

Hello Community, I have a constantly loading chrome on my openSuSE 15.1 (and my android phone), while firefox has no issues . Can someone test accessing the oVirt Admin portal via chrome on x86_64 Linux ? Best Regards,Strahil Nikolov

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Ovirt 4.3.6 USB passthrough not working with iommu_intel=on iommu=pt
by Don Dupuis 24 Nov '19

24 Nov '19

I am trying to pass through a USB Dongle to a Windows virtual machine in ovirt 4.3.6. This will work if these options aren't used. Below is the output of lsusb with no iommu enable: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 005: ID 1604:10c0 Tascam Bus 001 Device 004: ID 1604:10c0 Tascam Bus 001 Device 003: ID 1604:10c0 Tascam Bus 001 Device 002: ID 07f2:0001 Microcomputer Applications, Inc. KEYLOK II Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub The device I am passing through is Bus 001 Device 002. This is the error I get in vdsmd.log: Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 867, in _startUnderlyingVm self._run() File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2890, in _run self._domDependentInit() File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2466, in _domDependentInit self._vmDependentInit() File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2480, in _vmDependentInit self._getUnderlyingVmDevicesInfo() File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2448, in _getUnderlyingVmDevicesInfo vmdevices.common.update_device_info(self, self._devices) File "/usr/lib/python2.7/site-packages/vdsm/virt/vmdevices/common.py", line 94, in update_device_info hostdevice.HostDevice.update_device_info(vm, devices[hwclass.HOSTDEV]) File "/usr/lib/python2.7/site-packages/vdsm/virt/vmdevices/hostdevice.py", line 426, in update_device_info vm, device_conf, device_xml) File "/usr/lib/python2.7/site-packages/vdsm/virt/vmdevices/hostdevice.py", line 223, in update_from_xml if host_address == dev.hostAddress: AttributeError: 'MdevDevice' object has no attribute 'hostAddress' 2019-11-18 18:20:06,173-0600 INFO (vm/9944089c) [virt.vm] (vmId='9944089c-2109-4352-a0c6-7d0d9e04bb3f') Changed state to Down: 'MdevDevice' object has no attribute 'hostAddress' (code=1) (vm:1690) I am using kernel 3.10.0-957.12.1.el7.x86_64 vdsm is vdsm-4.30.33-1.el7.x86_64 libvirt is libvirt-5.0.0-1.el7.x86_64 qemu is qemu-img-ev-2.12.0-33.1.el7.x86_64 Any help with this issue would be appreciated. Thanks Don

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metrics
by suporte＠logicworks.pt 24 Nov '19

24 Nov '19

Hi, I'm trying to install metrics for Version 4.3.6.7-1.el7 Do I need a RH subscription to downloading the RHEL guest image? (qcow_url:) Thanks -- Jose Ferradeira http://www.logicworks.pt

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Export of disk possible?
by Gianluca Cecchi 24 Nov '19

24 Nov '19

Hello, in 4.3 I can: - Storage -> Domains -> Select Domain -> Disks -> Select Disk -> Download and this will download the disk image to my client, that then I can upload to a different environment - Storage -> Disks -> Select Disk -> Export But then, even if I have an export domain active I get this kind of window that I don't understand.... https://drive.google.com/file/d/1UU7NaoQ9F01oEkciUgz29HW-4dOPQVeF/view?usp=… Perhaps it means another DC managed by the same Engine is needed? How can I export a virtual disk from an engine environment to another engine environment? Yes, I can artificially create a VM and attach the disk to it and then export the VM, but is there a functionality to directly export a disk to an export domain? Thanks, Gianluca

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Dm-VDO in Gluster
by rob.downer＠orbitalsystems.co.uk 23 Nov '19

23 Nov '19

I have 3 nodes set up with a 2TB Partition on each for Gluster set up. The drives are all SSD should I enable DM-VDO ? has anyone one got a simple / Pro / Con list ? I understand response is slower if enabled also some CPU hit both are acceptable. Thanks

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Howto recover/reinstall a failed oVirt node in a 3 node HCI cluster
by Timo Eissler 22 Nov '19

22 Nov '19

Hello, i can't find the documentation on howto recover from a single host OS disk failure in a 3 node HCI cluster. I already searched the ovirt, RHV and RHHI documentation but i can't find the corresponding documentation. So can anyone please give me some hints? In our dev lab i have 3 servers with 2 disks each. sda for ovirt node and sdb for gluster. Let's assume the disk sda of a single node is defunct and needs to be replaced. So i grab a new disk and reinstall ovirt node from PXE. After the installation is finished i would like to reinstall the host from ovirt admin portal, but that doesn't work because of an invalid fingerprint. So how can i re-add that host to ovirt and gluster? Kind regards, Timo

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python ovirtsdk
by serphentos＠sharedlink.tk 22 Nov '19

22 Nov '19

Hello. Can someone explain how to attach logical network to host via ovirtsdk? I saw a example of attaching networks to cluster or dc, but not a host https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/assign_n…

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