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Extending iSCSI storage domain
by Répás Péter 01 Sep '21

01 Sep '21

Hello, I have an oVirt 4.1.1 installion with 2 nodes and an ovirt manager on a serpate machine. I have multiple storage domain on an external storage, one contains the disk images of VMs, and another is a huge storage domain dedicated to store mediafiles. The mediafile storage domain has only one disk image, attached to a linux vm, no other disk image on this mediafile storage domain. The mediafile storage domain is attached and available to both ovirt nodes. This media storage domain has to be extended. The storage device has the capacity, so it is going to be extended. What should be done on the oVirt side to extend the media storage domain? Sorry for the lame question but the docs and tips from the web are ambiguous for me, some say it cannot be extended, just add a new lun to this storage domain. Does this operation need the full cluster to be put maintenance and stop all vms? Or just the linux vm to that is the disk image is attached to? Thank you for your help! Regards, Peter

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ovirt go sdk
by Nikita Zubarev 01 Sep '21

01 Sep '21

Hello. I need help creating a virtual machine using https://github.com/oVirt/go-ovirt I need set cmdline vm , Please help me my create vm configuration, but cmd not set [image: image.png] Vm( ovirtsdk4.NewVmBuilder(). Name(*name). Console( ovirtsdk4.NewConsoleBuilder(). Enabled(true). MustBuild()). Memory(ram2 * int64(1<<30)). MemoryPolicy( ovirtsdk4.NewMemoryPolicyBuilder(). Guaranteed(int64(ram2) * int64(1<<30)). Max(int64(ram2) * 2 * int64(1<<30)). Ballooning(true). MustBuild()). // Memory(int64(ram2) * int64(1<<30)). Os( ovirtsdk4.NewOperatingSystemBuilder(). CustomKernelCmdline("qemu_cmdline").Cmdline("qemu_cmdline").Boot( ovirtsdk4.NewBootBuilder(). DevicesOfAny( ovirtsdk4.BOOTDEVICE_NETWORK, ovirtsdk4.BOOTDEVICE_HD). MustBuild()). MustBuild()). HighAvailability( ovirtsdk4.NewHighAvailabilityBuilder(). Enabled(true). MustBuild()). Cpu( ovirtsdk4.NewCpuBuilder(). Topology( ovirtsdk4.NewCpuTopologyBuilder(). Cores(cpu2). Sockets(1). MustBuild()). MustBuild()). Cluster( ovirtsdk4.NewClusterBuilder(). Name(Cluster). MustBuild()). Template( ovirtsdk4.NewTemplateBuilder(). Name("Blank"). MustBuild()). MustBuild()). Send()

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mount options change
by Jiří Sléžka 01 Sep '21

01 Sep '21

Hi, is there any way to change mount options on active storage? I started using my gluster volume in replica 3, arbiter 1 configuration with 10.0.4.11:/vms mount point and mount options backup-volfile-servers=10.0.4.13 I would like to add also 10.0.4.12 as backup volfile as I am on full replica 3 now. Yes, I suppose I can shut down all vms, switch domain to maintenance and then change mount options but is there any other way? For example change it directly in db and then restart all hosts one by one (while vms are running)? Cheers, Jiri

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Re: [External] : Re: about the hugepage setting of the KVM server
by Tommy Sway 31 Aug '21

31 Aug '21

I use the ovirt-node, and I configured HUGEPAGE on the VM, and does not configure the HUGEPAGE on the KVM host. The THP I don't configure anything about it, and after configure the HUGEPAGE on the vm, there is no report. I don't know which method is the best. From: Marcos Sungaila <marcos.sungaila(a)oracle.com> Sent: Thursday, August 26, 2021 9:13 PM To: Tommy Sway <sz_cuitao(a)163.com>; users(a)ovirt.org Subject: RE: [External] : [ovirt-users] Re: about the hugepage setting of the KVM server Hi Tommy, I have no simple answer to your question since I did not need this before, but some questions may help us understand how it is currently working. 1st- Are you using an ovirt-node or an OS+vdsm as a hypervisor? 2nd- Did you enabled huge pages on the VM OS? 3rd- Did you check on the hypervisor OS if transparent hugepages (THP) is enabled? And if, after enabling/configuring hugepages in the VM, it is reporting hugepages are in use in the host? Marcos From: Tommy Sway <sz_cuitao(a)163.com <mailto:sz_cuitao@163.com> > Sent: quinta-feira, 26 de agosto de 2021 04:49 To: users(a)ovirt.org <mailto:users@ovirt.org> Subject: [External] : [ovirt-users] Re: about the hugepage setting of the KVM server Anyone can help me ? From: users-bounces(a)ovirt.org <mailto:users-bounces@ovirt.org> <users-bounces(a)ovirt.org <mailto:users-bounces@ovirt.org> > On Behalf Of Tommy Sway Sent: Thursday, August 26, 2021 12:27 AM To: users(a)ovirt.org <mailto:users@ovirt.org> Subject: [ovirt-users] about the hugepage setting of the KVM server Hi: I am running virtual machines on the KVM servers of oVirt env. The virtual machine is running database, which needs to set the memory huge page on the OPERATING system of the virtual machine. If I need to set the huge page on the VIRTUAL machine, do I also need to set huge page on the KVM physical machine? Or just on the virtual machine? What best practices do you recommend? Thank you very much!

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Unable to export VM from data storage domain.
by Diggy Mc 31 Aug '21

31 Aug '21

I'm running oVirt 4.4.4 with two data storage domains. One domain is where the production VMs run. The second domain is where I make backup copies of the VMs in the event of problems with the main production VMs. I make backups using the export option from the GUI's dropdown list. I just now tried to "restore" a backup copy via the export function and get an error. In fact, I get errors trying to export (import to my original data domain) any of the VMs that were exported to my backup data domain. My backup domain is a DATA domain and not an EXPORT domain. The exact error is: Export VM Failed [Cannot add VM. Cannot find a disk profile defined on storage domain 246c69e9-6f16-489f-8022-8613f6c1c22a.] Is this a bug or am I doing something wrong? Help is needed urgently. In advance, thank you.

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Unexpected return value: Status [code=-32603, message=Internal JSON-RPC error: {'reason': "'libvirt'"}]
by marek 31 Aug '21

31 Aug '21

hi, i have problem adding host to ovirt 4.4.8 standalone engine host is centos 8 stream (migrated from centos 8) on engine /var/log/ovirt-engine/engine.log 2021-08-30 10:32:43,422+02 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.GetCapabilitiesAsyncVDSCommand] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-69) [] Failed in 'Get Host Capabilities' method 2021-08-30 10:32:43,422+02 WARN [org.ovirt.engine.core.vdsbroker.vdsbroker.GetCapabilitiesAsyncVDSCommand] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-69) [] Unexpected return value: Status [code=-32603, message=Internal JSON-RPC error: {'reason': "'libvirt'"}] 2021-08-30 10:32:43,423+02 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.HostMonitoring] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-69) [] Unable to RefreshCapabilities beforeFirstRefreshTreatment: VDSErrorException: VDSGenericException: VDSErrorException: Failed to Get Host Capabilities, error = Internal JSON-RPC error: {'reason': "'libvirt'"}, code = -32603 any tips/ideas? Marek

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Import OVA problem
by Dominique D 31 Aug '21

31 Aug '21

I have tried exporting 4 VMs (2 centos and 2 Windows) to an nfs mount (export OVA) and importing from ova and I can't see all the files. Here are the files in the directory -rw-------+ 1 root root 10739331584 Aug 29 10:27 linux2.ova -rw-------+ 1 root root 1784370176 Aug 28 12:00 linuxtest.ova -rw-------+ 1 root root 64434655232 Aug 28 13:57 vdiw10-2004v1C.ova -rw-------+ 1 vdsm kvm 49040712192 Aug 27 17:21 vdiw10rg06.ova The only file I see in virtual machine on source is linuxtest.ova and linux2.ova. Do you know why ? ovirt 4.4.6

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ovirt 4.4.8 centos cloud image problem
by marek 31 Aug '21

31 Aug '21

hi, i need test environment for centos6 system on new ovirt installation downloaded CentOS 6 Generic Cloud Image v1907 for x86_64 (09463e6) from ovirt-image-repository as usual created new VM from from this cloud image but VM cannot find disk (console shows "pres any key to boot") tried legacy BIOS and UEFI too - nothing changed so i tried install centos6 from ISO . works. then i made template from this VM. created new VM from from this template and situation is the same Centos 7 cloud image works any hints/tips? Marek

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Re: How to re-import a VM with an invalid timezone?
by Saif Abu Saleh 31 Aug '21

31 Aug '21

Hi, Can you please provide what time-zone the VM you are trying to Import has? if you are trying to import from the OVA you can get the time-zone by going to the host location where the exported OVA exists, open it and check what is the value of the <TimeZone> tag Thanks, Saif From: <hibbsncc1701(a)gmail.com> > Date: Fri, Aug 27, 2021 at 9:27 AM > Subject: [ovirt-users] How to re-import a VM with an invalid timezone? > To: <users(a)ovirt.org> > > > I've just finished my upgrade to oVirt 4.4.8.4, but I've got one > previously working VM that I cannot reimport. (I did a fresh install > instead of restoring an engine backup.) It's a Windows VM, and every > attempt I make to import it causes the following error: > > Cannot import VM. Invalid time zone for given OS type. > Attribute: vm.vmStatic > > The interface doesn't give me the option to change the timezone before > import. The most that I can get from the logs on either the engine host or > SPM host is this: > > 2021-08-26 17:38:30,793-04 WARN > [org.ovirt.engine.core.bll.exportimport.ImportVmFromConfigurationCommand] > (default task-35) [96d9f0ea-99be-477a-b1d1-3781ffbac041] Validation of > action 'ImportVmFromConfiguration' failed for user admin@internal-authz. > Reasons: > VAR__ACTION__IMPORT,VAR__TYPE__VM,ACTION_TYPE_FAILED_INVALID_TIMEZONE,$groups > [Ljava.lang.Class;@b263017,$message > ACTION_TYPE_FAILED_INVALID_TIMEZONE,$payload [Ljava.lang.Class;@3b789cbf,ACTION_TYPE_FAILED_ATTRIBUTE_PATH,$path > vm.vmStatic,$validatedValue > org.ovirt.engine.core.common.businessentities.VmStatic@9f994c52 > > Does anyone know how to get a VM imported in this case? > > Thanks. > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/J4L5M3PDZRBFC… >

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Crash Debugging VDSM Hook
by Jean-Louis Dupond 31 Aug '21

31 Aug '21

Hi All, While debugging some Qemu 6 issue I was requested to remove the error_policy from the libvirt xml. See https://bugzilla.redhat.com/show_bug.cgi?id=1999051#c12 Now to have this working I just wrote some small python hook for VDSM which adjusts the XML before startup. Just added the file in /usr/libexec/vdsm/hooks/before_vm_start: # cat 40_crashtest #!/usr/libexec/platform-python import os import hooking class CrashTestHook(object): def __init__(self): super(CrashTestHook, self).__init__() self.config = {} self.domxml = hooking.read_domxml() def save(self): hooking.write_domxml(self.domxml) def set_error_policy(self): drivers = self.domxml.getElementsByTagName('driver') for driver in drivers: policy = driver.getAttribute('error_policy') if policy == 'stop': driver.removeAttribute('error_policy') def main(self): self.set_error_policy() self.save() if __name__ == "__main__": CrashTestHook().main() # vim: expandtab tabstop=4 shiftwidth=4 Might be usefull if somebody else needs the same thing :) Jean-Louis

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