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HCL: 4.3.7: Hosted engine fails
by Christian Reiss 08 Jan '20

08 Jan '20

Hey all, Using a homogeneous ovirt-node-ng-4.3.7-0.20191121.0 freshly created cluster using node installer I am unable to deploy the hosted engine. Everything else worked. In vdsm.log is a line, just after attempting to start the engine: libvirtError: the CPU is incompatible with host CPU: Host CPU does not provide required features: virt-ssbd I am using AMD EPYC 7282 16-Core Processors. I have attached - vdsm.log (during and failing the start) - messages (for bootup / libvirt messages) - dmesg (grub / boot config) - deploy.log (browser output during deployment) - virt-capabilites (virsh -r capabilities) I can't think -or don't know- off any other log files of interest here, but I am more than happy to oblige. notectl check tells me Status: OK Bootloader ... OK Layer boot entries ... OK Valid boot entries ... OK Mount points ... OK Separate /var ... OK Discard is used ... OK Basic storage ... OK Initialized VG ... OK Initialized Thin Pool ... OK Initialized LVs ... OK Thin storage ... OK Checking available space in thinpool ... OK Checking thinpool auto-extend ... OK vdsmd ... OK layers: ovirt-node-ng-4.3.7-0.20191121.0: ovirt-node-ng-4.3.7-0.20191121.0+1 bootloader: default: ovirt-node-ng-4.3.7-0.20191121.0 (3.10.0-1062.4.3.el7.x86_64) entries: ovirt-node-ng-4.3.7-0.20191121.0 (3.10.0-1062.4.3.el7.x86_64): index: 0 title: ovirt-node-ng-4.3.7-0.20191121.0 (3.10.0-1062.4.3.el7.x86_64) kernel: /boot/ovirt-node-ng-4.3.7-0.20191121.0+1/vmlinuz-3.10.0-1062.4.3.el7.x86_64 args: "ro crashkernel=auto rd.lvm.lv=onn_node01/swap rd.lvm.lv=onn_node01/ovirt-node-ng-4.3.7-0.20191121.0+1 rhgb quiet LANG=en_GB.UTF-8 img.bootid=ovirt-node-ng-4.3.7-0.20191121.0+1" initrd: /boot/ovirt-node-ng-4.3.7-0.20191121.0+1/initramfs-3.10.0-1062.4.3.el7.x86_64.img root: /dev/onn_node01/ovirt-node-ng-4.3.7-0.20191121.0+1 current_layer: ovirt-node-ng-4.3.7-0.20191121.0+1 The odd thing is the hosted engine vm does get started during initial configuration and works. Just when the ansible stuff is done an its moved over to ha storage the CPU quirks start. So far I learned that ssbd is a mitigation protection but the flag is not in my cpu. Well, ssbd is virt-ssbd is not. I am *starting* with ovirt. I would really, really welcome it if recommendations would include clues on how to make it happen. I do rtfm, but I was unable to find anything (or any solution) anywhere. Not after 80 hours of working on this. Thank you all. -Chris. -- Christian Reiss - email(a)christian-reiss.de /"\ ASCII Ribbon support(a)alpha-labs.net \ / Campaign X against HTML WEB alpha-labs.net / \ in eMails GPG Retrieval https://gpg.christian-reiss.de GPG ID ABCD43C5, 0x44E29126ABCD43C5 GPG fingerprint = 9549 F537 2596 86BA 733C A4ED 44E2 9126 ABCD 43C5 "It's better to reign in hell than to serve in heaven.", John Milton, Paradise lost.

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Re: ISO Upload
by Strahil 07 Jan '20

07 Jan '20

Then ... It's a bug and shoiuld be reported. Best Regards, Strahil NikolovOn Jan 7, 2020 16:00, Chris Adams <cma(a)cmadams.net> wrote: > > Once upon a time, m.skrzetuski(a)gmail.com <m.skrzetuski(a)gmail.com> said: > > I'd give up on the ISO domain. I started like you and then read the docs which said that ISO domain is deprecated. > > I'd upload all files to a data domain. > > Note that that only works if your data domain is NFS... iSCSI data > domains will let you upload ISOs, but connecting them to a VM fails. > -- > Chris Adams <cma(a)cmadams.net> > _______________________________________________ > 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/ND4OHFK6IH6BW…

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OVirt Engine Server Died - Steps for Rebuilding the Ovirt Engine System
by bob.franzke＠mdaemon.com 07 Jan '20

07 Jan '20

Full disclosure here.....I am not an Ovirt Expert. I am a network Engineer that has been forced to take over sysadmin duties for a departed co-worker. I have little experience with Ovirt so apologies up front for anything I say that comes across as stupid or "RTM" questions. Normally I would do just that but I am in a bind and am trying to figure this out quickly. We have an OVirt installation setup that consists of 4 nodes and a server that hosts the ovirt-engine all running CentOS 7. The server that hosts the engine has a pair of failing hard drives and I need to replace the hardware ASAP. Need to outline the steps needed to build a new server to serve as and replace the ovirt engine server. I have backed up the entire /etc directory and the backups being done nightly by the engine itself. I also backed up the iscsi info and took a printout of all the disk arrangement . The disk has gotten so bad at this point that the DB won't back up any longer. Get fatal:backup failed error when trying to run the ovirt backup tool. Also the Ovirt management site is not rendering and I am not sure why. Is there anything else I need to make sure I backup in order to migrate the engine from one server to another? Also, until I can get the engine running again, is there any tool available to manage the VMs on the hosts themselves. The VMs on the hosts are running but need a way to manage them if needed in case something happens while the engine is being repaired. Any info on this as well as what to backup and the steps to move the engine from one server to another would be much much appreciated. Sorry I know this a real RTM type post but I am in a bind and need a solution rather quickly. Thanks in advance.

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Ansible example for creating VM from qcow2 image?
by m.skrzetuski＠gmail.com 07 Jan '20

07 Jan '20

Hello there, anyone Ansible examples on how to create a VM (including cloud init) from a previously uploaded qcow2 file (using the ovirt_vm module from https://docs.ansible.com/ansible/latest/modules/ovirt_vm_module.html#ovirt-… I simply cannot wrap my head around it. Do you create a disk from the qcow2 and attach it to the VM? Or do you mount it as ISO in CDROM of the VM and the automate the installation? What are the exact steps? Do I have to use templates (I don't want to)? Kind regards Skrzetuski

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Deleted gluster volume
by Christian Reiss 07 Jan '20

07 Jan '20

Hey folks, I accidently deleted a volume in the oVirt Engine, Storage -> Volumes. The gluster is still up on all three nodes, but the ovirt engine refuses to re-scan it. Or to re-introduce it. How could I add the still valid and working (but deleted in the ovirt engine) gluster volume back to the engine? It's a test setup. I am trying to break & repair things. Still I am unable to find any documentation on this "use case". Thanks! -- with kind regards, mit freundlichen Gruessen, Christian Reiss

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strength of oVirt compared to others???
by yam yam 07 Jan '20

07 Jan '20

Hi everyone! I want to know clear strength of oVirt compared to openstack and kubevirt(VM add-on for k8s). compared OpenStack, I heard oVirt is specialized in long-lasting traditional apps requiring robust and resilient infra while OpenStack is cloud solution. so, backend is suited for oVirt and frontend like web server is suited for OpenStack. but I 'm wondering why these traditional apps are not suited for OpenStack because I think OpenStack encompasses functions(live migration, scale-up, snapshot, ...) oVirt provides. I want to know which features in oVirt make such difference. compared to kubevirt, it seems more difficult to find strength in that both are designed to run legacy apps. under mixed environment, it seems like rather kubevirt has more benefits :'(

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Question about HCI gluster_inventory.yml
by John Call 07 Jan '20

07 Jan '20

Hi ovirt-users, I'm trying to automate my HCI deployment, but can't figure out how to specify multiple network interfaces in gluster_inventory.yml. My servers have two NICs, one for ovirtmgmt (and everything else), and the other is just for Gluster. How should I populate the inventory/vars file? Is this correct? [root@rhhi1 hc-ansible-deployment]# pwd /etc/ansible/roles/gluster.ansible/playbooks/hc-ansible-deployment [root@rhhi1 hc-ansible-deployment]# cat gluster_inventory.yml --lots of stuff omitted-- hc_nodes: hosts: host1-STORAGE-fqdn: host2-STORAGE-fqdn: host3-STORAGE-fqdn: vars: cluster_nodes: - host1-ovirtmgmt-fqdn - host2-ovirtmgmt-fqdn - host3-ovirtmgmt-fqdn gluster_features_hci_cluster: "{{ cluster_nodes }}" gluster: host2-STORAGE-fqdn: host3-STORAGE-fqdn: storage_domains: [{"name":"data","host":"host1-STORAGE-fqdn","address":"host1-STORAGE-fqdn","path":"/data","mount_options":"backup-volfile-servers=host2-STORAGE-fqdn:host3-STORAGE-fqdn"},{"name":"vmstore","host":"host1-STORAGE-fqdn","address":"host1-STORAGE-fqdn","path":"/vmstore","mount_options":"backup-volfile-servers=host2-STORAGE-fqdn:host3-STORAGE-fqdn"}]

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Confusion about storage domain ISO. How do I provision VMs?
by m.skrzetuski＠gmail.com 06 Jan '20

06 Jan '20

Hello there, I'm a bit confused about provisioning VMs (with Ansible). At first I wanted to setup a VM manually over the web UI, just to see how it works. I was not able to upload ISO files with cloud images to a data domain but I was able to upload to ISO domain. However I read that ISO domains are deprecated (see https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.3/ht…) So what is the workflow/process of provisioning VMs from cloud images with cloud init? Where do I store my ISOs? Kind regards skrzetuski

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VM auto start with Host?
by m.skrzetuski＠gmail.com 06 Jan '20

06 Jan '20

Hello everyone, please tell me it is possible to auto start all VMs together with a Host. How do I configure this? I found some RFEs and Bugzilla Bugs and Redhat engineers promising this but no docs about how to enable it. Kind regards Skrzetuski

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Re: null
by Strahil 06 Jan '20

06 Jan '20

I do use automatic migration policy. The main question you have to solve is: 1. Why the nodes became 'Non-operational' .Usually this happens when the management interface (in your case HoatedEngine VM) could not reach the nodes over the management network. By default, management is going over the ovirtmgmt network. I guess you have created the new network. Marked that new network as management network and then the switch was off , causing 'Non-Operational state'. 2. Migrating VMs is usually a safe approach, but this behavior is quite strange. If a node ia Non-operational -> there could be no successful migration. 3. Some of the VMs got paused due to storage issue. Are you using GlusterFS, NFS or iSCSI ? If yes, you need to clarify why you lost your storage. I guess for now you can mark each VM to be migrated only manually (VM -> Edit) and if they are critical VMs , set a high Availability from each VM's Edit options. In such case, if a node fails, the VMs will be restarted on another node. 4. Have you setup node fencing ? For example APC, iLo, iDRAC and other fencing mechanisms can allow the HostedEngine use another Host as fencing proxy and to reset the problematic Hypervisor. P.S.: You can define the following alias in '~/.bashrc' : alias virsh='virsh -c qemu:///system?authfile=/etc/ovirt-hosted-engine/virsh_auth.conf' Then you can verify your VMs even when a HostedEngine is down: 'virsh list --all' Best Regards, Strahil NikolovOn Dec 27, 2019 08:40, zhouhao(a)vip.friendtimes.net wrote: > > I had a crash yesterday in my ovirt cluster, which is made up of 3 nodes. > > I just tried to add a new network, but the whole cluster crashed > > I added a new network to my cluster, but while I was debugging the newswitch, when the switch was poweroff, the node detected the network card status down and then moved to Non-Operational state. > > > > At this time all of 3 nodes moved to Non-Operational state. > > All virtual machines have started automatic migration,When I received the alert email, all virtual machines were suspended > > > > > > In 15 minutes my newswitch were power up again.The 3 ovirt-nodes become active again, but many virtual machines become unresponsive or suspended due to forced migration, and only a few virtual machines are pulled up again due to cancelled migration > > After I tried to terminate the migration tasks and restart ovirt-engine service, I was still unable to restore most of the virtual machines, so I had to restart 3 ovirt-nodes to restore my virtual machine > > I didn't recover all the virtual machines until an hour later > > > Then I modify my migration policy to " Do Not Migrate Virtual Machines" > > Which migration Policy do you recommend? > > I'm afraid to use cluster... > > ________________________________ > zhouhao(a)vip.friendtimes.net

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