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Clusters: Clarification needed on the ballooning memory feature and its affects on the physical hosts memory
by donagh.moran＠oracle.com 10 Dec '19

10 Dec '19

Hi For test purposes I'm configuring cluster with ballooning enabled and memory over-commit set to 200% with one host (total memory 128600 MB) connected. I then create 4 linux based VM's and I set the following on each: memory size: 62000MB, max memory: 248000MB (default value set when memory size is set) and a guaranteed memory value of 31000MB (default value set when memory size is set). This all works as expected, I can start 4 VM's with a total memory size that double the physical memory available on the host. What I don't understand is when I view the general info on my host I see that the available memory is much higher than expected. Physical Memory:128600 MB total, 11574 MB used, 117026 MB free. When researching the set up required to test this feature I came across this post https://lists.ovirt.org/pipermail/users/2017-October/084675.html. It states the hosts memory load needs to exceed 80%. I was hoping that the allocation of physical memory to each VM would satisfy this condition but I am not sure it does. I have a few questions on this Should setting the physical memory to each VM would satisfy the greater than 80% conditions? Given we have guaranteed memory for each VM of 31000MB should the total of 124000Mb exceed the free memory on the host? Does the hosts used physical memory only represent each VM's disk 4Gb virtual size? Will the hosts free memory only decrease as the VM's consume storage? Any clarification on the above questions would be most appreciated. Regards Donagh

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Re: Cannot obtain information from export domain
by Strahil 10 Dec '19

10 Dec '19

Hi can you describe your actions? Usually the export is like this: 1. You make a backup of the VM 2. You migrate the disks to the export storage domain 3. You shut down the VM 4. Set the storage domain in maintenance and then detach it from the oVirt 5. You atttach it to the new oVirt 6. Once the domain is active - click on import VM tab and import all VMs (defining the cluster you want them to be running on) 7. Power up VM and then migrate the disks to the permanent storage. Best Regards, Strahil NikolovOn Nov 26, 2019 19:41, Arthur Rodrigues Stilben <arthur.stilben(a)gmail.com> wrote: > > Hello everyone, > > I'm trying to export a virtual machine, but I'm getting the following error: > > 2019-11-26 16:30:06,250-02 ERROR > [org.ovirt.engine.core.bll.exportimport.GetVmsFromExportDomainQuery] > (default task-22) [b9a0b9d5-2127-4002-9cee-2e3525bccc89] Exception: > org.ovirt.engine.core.common.errors.EngineException: EngineException: > org.ovirt.engine.core.vdsbroker.irsbroker.IRSErrorException: > IRSGenericException: IRSErrorException: Failed to GetVmsInfoVDS, error = > Storage domain does not exist: > (u'5ac6c35d-0406-4a06-a682-ed8fb2d1933f',), code = 358 (Failed with > error StorageDomainDoesNotExist and code 358) > > 2019-11-26 16:30:06,249-02 ERROR > [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] > (default task-22) [b9a0b9d5-2127-4002-9cee-2e3525bccc89] EVENT_ID: > IMPORTEXPORT_GET_VMS_INFO_FAILED(200), Correlation ID: null, Call Stack: > null, Custom ID: null, Custom Event ID: -1, Message: Failed to retrieve > VM/Templates information from export domain BackupMV > > The version of the oVirt that I am using is 4.1. > > Att, > > -- > Arthur Rodrigues Stilben > _______________________________________________ > 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/Z6FQ45UVQODSR…

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Still having NFS issues. (Permissions)
by Robert Webb 10 Dec '19

10 Dec '19

So I have doubled checked everything I can think of and am still having issues. I have an NFS Storage Domain attached and I can now create, modify, and remove VM's with no issues. The issue I am having is when it is time to power on the VM. The issue is that when oVirt tries to access the image, access is being denied. I have double checked the documentation against my setup and it all looks right. I have the VDSM user and KVM group created with id's of 36. New files are being created with permissions of 755, just as the documentation describes. What I have found out though, is that in order for oVirt to have access to the files, the "other" permission has to be a 7. So effectiviely I need to have 757, rwx, on the files. Is there a user that I am missing from the documentation, or a user on oVirt that should be in a group, that isn't? Someone previously mentioned the sanlock user, but I do not see anything special that is required for it. This is my last hurdle before really being able to dig into oVirt.

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Re: Issue deploying self hosted engine on new install
by Yedidyah Bar David 10 Dec '19

10 Dec '19

On Mon, Dec 9, 2019 at 3:06 PM Robert Webb <rwebb(a)ropeguru.com> wrote: > > Nate, > > > > Thanks for the tip, but the NAS is Debian based. > > > > > > Is it potentially an SELinux denial? I seem to recall an SELinux Boolean that needs to be set on the nfs server. You might want to check audit log on both nfs server and your host. What error do you get in vdsm.log? > > > > On Sun, Dec 8, 2019, 4:00 PM Robert Webb <rwebb(a)ropeguru.com> wrote: > > Didi, > > Apologies for the delayed reply. > > I tracked the issue down after giving up on the self hosted install. I installed it to a VM running CentOS 7 running on another platform and then added my hosts. > > After adding the hosts and dploying a VM on oVirt, everything deployed perfectly, I could never get the VM to start. Digging further, I found that it is apparently a NFS permission on my NAS. What is odd is that I can add the Storage domain with no issues, I can create a VM, but the VM will never start due to a permission issue on the disk image. > > On my NAS if I just go into the shared folder permissions and not change anything but just tell it to apply configured permissions to all files and folders, the newly created VM runs just fine. For some reason when oVirt creates new files in storage, it is leaving off the execute for the vdsm user. I also notice that for the image and lease files, it also leaves off any permisson for "other" . NOt sure why the permissions are not being applied correctly. But that is an issue for me to figure out on my NAS, OpenMediaVault. > > drwxrwsrwx+ 2 vdsm kvm 4096 Dec 7 23:53 . > drwxrwsrwx+ 8 vdsm kvm 4096 Dec 7 23:13 .. > -rw-rw----+ 1 vdsm kvm 53687091200 Dec 7 23:13 0605d785-f4df-49b1-af27-1f035148921c > -rw-rw----+ 1 vdsm kvm 1048576 Dec 7 23:13 0605d785-f4df-49b1-af27-1f035148921c.lease > -rw-rw-rw-+ 1 vdsm kvm 251 Dec 7 23:53 0605d785-f4df-49b1-af27-1f035148921c.meta > _______________________________________________ > 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/FQGIOYW36MWWW… > > _______________________________________________ > 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/TBHWVVP67DDLF… -- Didi

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ovirt rest api: how to get wwnn and wwnp of fiber channel of the KVM host managed by Ovirt manager using rest api
by Vivek Basappa 09 Dec '19

09 Dec '19

Hello, I am new to Ovirt , trying to dig through documentation, I am working on integrating Hitachi SAN storage with Ovirt manager. working on Hitachi SAN storage integration, I am trying to get WWNN and WWNP port details of the KVM Host using REST API. but I am unable to find any documentations in REST API about that. I could see that information in Ovirt Admin UI. how can I get this information trough REST API any help is appreciated regards Vivek

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Issue in setting up
by Johns 09 Dec '19

09 Dec '19

Hi all, I just tried to use oVirt in multi-server, Manager in one VM and Host in a dedicated machine, every time I try to attach host I get this error. networks, the following networks are missing on host: 'ovirtmgmt' I have created a bridge but no luck , please help

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Re: Issue deploying self hosted engine on new install
by Yedidyah Bar David 09 Dec '19

09 Dec '19

On Fri, Dec 6, 2019 at 3:35 PM Robert Webb <rwebb(a)ropeguru.com> wrote: > > Hi all, > > I am trying to deploy the self hosted engine via cockpit and it is failing at the very end of deployment when it is checking the VM Health. I have done multiple clean installs and run this and it fails every time. > > I have also tried from the cli via ssh with the same outcome. > > After the failure, if I look at the oVirt Machines section of the node, the VM is there but will not start. > > Anyone else having this issue? Can you please check/share relevant parts of relevant logs? Including /var/log/ovirt* /var/log/vdsm* from the host, and /var/log/ovirt* from the engine machine, if you can access it. Thanks and best regards, -- Didi

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Importing a Virtual Machine from a KVM Host
by Dirk Streubel 09 Dec '19

09 Dec '19

Hello everbody, i am just a little bit confused about importing Qemu Images from my KVM Host. At home, and at work i am using a ovirt engine in a VM. The Version is 4.3.7 and on bare metal my host. Everything works fine but i have the same problem at home and on work. I want to import my qcow2 Images from a KVM Host but i will not work. The command virsh -r -c 'qemu+tcp://root@host1.example.org/system' list --all shows me akk my VMs. But when i want to load the images in the GUI, nothing happens. I follow this instruction: https://www.ovirt.org/develop/release-management/features/virt/KvmToOvirt.h… After that, i take a look on the official 4.3 Rhev Documentation from Red Hat. There stand this: Log in to the proxy host and generate SSH keys for the vdsm user. sudo -u vdsm ssh-keygen So, i have no proxy host. So i want to do this on my ovirt-engine. Is this right? Next thing: the user vdsm is locked on the ovirt-engine machine and the host. So, do i have to unlocked the account of the user vdsm or what is the best way. My Problem is i found nothing that would help me to solve this problem. Maybe somebody here do me a favour and help me to solve this "challenge" Regards Dirk

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Re: Windows Sluggish Performance
by Strahil 09 Dec '19

09 Dec '19

What is your virtual GPU ? I'm using QLX, and despite being sluggish, when you tune windows for best performance -it is workable. Of course, if you passthrough a GPU, performance will be completely different. Best Regards, Strahil NikolovOn Dec 3, 2019 21:19, Vijay Sachdeva <vijay.sachdeva(a)indiqus.com> wrote: > > Anyone? > > On Tue, 3 Dec 2019 at 11:21 PM, Vijay Sachdeva <vijay.sachdeva(a)indiqus.com> wrote: >> >> Hello Everyone, >> >> I managed to install Windows Server 2016 server on Ovirt node using ovirt engine.All virtio-Win drivers also installed, but the performance of Windows using console is very sluggish and mouse pointer is not at all responsive. >> >> Can anyone let me know, what could be the reason. Not able to to even add IP to VM as mouse doesn’t work at all. >> >> Thanks

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Re: Increase memory of hosted engine
by Strahil 08 Dec '19

08 Dec '19

When you edit the memory, wait till tomorrow before powering off and powering on. The file in 3.1 is just a backup :D Best Regards, Strahil NikolovOn Dec 8, 2019 18:06, Stefan Wolf <shb256(a)gmail.com> wrote: > > thank you for your replay, > > I am happy if it works > 1. check > 2. check > 3.1 check -> I cant see where is use this config file later, or it is just a backup? > 4.1 check i changed to > <ovirt-vm:memGuaranteedSize type="int">16384</ovirt-vm:memGuaranteedSize> > <ovirt-vm:minGuaranteedMemoryMb type="int">16384</ovirt-vm:minGuaranteedMemoryMb> > and > > <maxMemory slots='16' unit='KiB'>15625000</maxMemory> > <memory unit='KiB'>15625000</memory> > <currentMemory unit='KiB'>15625000</currentMemory> > > after write, quite und open these values have changed back to > <memory unit='KiB'>4194304</memory> > <currentMemory unit='KiB'>4194304</currentMemory> > > BREAK ;) > > after stopping the hosted engine with hosted-engine --vm-shutdown and powering it up with hosted-engine vm-start > everything is reverted ;( > > BREAK > > hosted engine is now up and running, maintenance ist still global, > changed again with virtsh edit HostedEngine. as written above it changes back > > I will wait for tomorrow. > > Or did I missunderstand something > > In which file the maxmem is hidden? > > thx shb > _______________________________________________ > 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/DWVBZO2OE6U62…

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