July 2018 - Users - oVirt List Archives

oVirt host deploy: disable multipath
by femi adegoke 27 Mar '23

27 Mar '23

https://bugzilla.redhat.com/show_bug.cgi?id=1472356 There are 2 drives in my install that oVirt is claiming as multipath. I have tried blacklisting at /etc/multipath/ but that hasn't worked. Any better solutions? I need these 2 drives to be non-multipathed.

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Network Address Change
by Paul.LKW 28 Dec '22

28 Dec '22

Hi All: I just has a case, I need to change the oVirt host and engine IP address due to data center decommission I checked in the hosted-engine host there are some files I could change ; in ovirt-hosted-engine/hosted-engine.conf ca_subject="O=simple.com, CN=1.2.3.4" gateway=1.2.3.254 and of course I need to change the ovirtmgmt interface IP too, I think just change the above line could do the tick, but where could I change the other host IP in the cluster ? I think I have to be lost all the host as once changed the hosted-engine host IP as it is in diff. sub net. Does there any command line tools could do that or someone has such experience could share? Best Regards, Paul.LKW

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looking for some ISV backup software which integrates the backup API
by Nathanaël Blanchet 08 Jun '22

08 Jun '22

Hello, We are about to change our backup provider, and I find it is a great chance to choose a full supported ovirt backup solution. I currently use this python script vm-backup-scheduler (https://github.com/wefixit-AT/oVirtBackup) but it is not the workflow officially suggested by the community (https://www.ovirt.org/develop/release-management/features/storage/backup-re…) I've been looking for a long time an ISV who supports such an API, but the only one I found is this one : Acronis Backup Advanced suggested here https://access.redhat.com/ecosystem/search/#/ecosystem/Red%20Hat%20Enterpri… I ran the trial version, but it doesn't seem to do better than the vm-backup-scheduler script, and it doesn't seem to use the backup API (attach a clone as a disk to an existing vm). Can you suggest me some other ISV solutions, if they ever exist... or share me your backup experience?

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OVS switch type for hosted-engine
by Devin A. Bougie 06 May '22

06 May '22

Is it possible to setup a hosted engine using the OVS switch type instead of Legacy? If it's not possible to start out as OVS, instructions for switching from Legacy to OVS after the fact would be greatly appreciated. Many thanks, Devin

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USB3 redirection
by Rik Theys 19 Apr '22

19 Apr '22

Hi, I'm trying to assign a USB3 controller to a CentOS 7.4 VM in oVirt 4.1 with USB redirection enabled. I've created the following file in /etc/ovirt-engine/osinfo.conf.d: 01-usb.properties with content os.other.devices.usb.controller.value = nec-xhci and have restarted ovirt-engine. If I disable USB-support in the web interface for the VM, the xhci controller is added to the VM (I can see it in the qemu-kvm commandline), but usb redirection is not available. If I enable USB-support in the UI, no xhci controller is added (only 4 uhci controllers). Is there a way to make the controllers for usb redirection xhci controllers? Regards, Rik -- Rik Theys System Engineer KU Leuven - Dept. Elektrotechniek (ESAT) Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee +32(0)16/32.11.07 ---------------------------------------------------------------- <<Any errors in spelling, tact or fact are transmission errors>>

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OVN routing and firewalling in oVirt
by Gianluca Cecchi 19 Apr '22

19 Apr '22

Hello, how do we manage routing between different OVN networks in oVirt? And between OVN networks and physical ones? Based on architecture read here: http://openvswitch.org/support/dist-docs/ovn-architecture.7.html I see terms for logical routers and gateway routers respectively but how to apply to oVirt configuration? Do I have to choose between setting up a specialized VM or a physical one: is it applicable/advisable to put on oVirt host itself the gateway functionality? Is there any security policy (like security groups in Openstack) to implement? Thanks, Gianluca

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Install hosted-engine - Task Get local VM IP failed
by florentl 10 Mar '22

10 Mar '22

Hi all, I try to install hosted-engine on node : ovirt-node-ng-4.2.3-0.20180518. Every times I get stuck on : [ ERROR ] fatal: [localhost]: FAILED! => {"attempts": 50, "changed": true, "cmd": "virsh -r net-dhcp-leases default | grep -i 00:16:3e:6c:5a:91 | awk '{ print $5 }' | cut -f1 -d'/'", "delta": "0:00:00.108872", "end": "2018-06-01 11:17:34.421769", "rc": 0, "start": "2018-06-01 11:17:34.312897", "stderr": "", "stderr_lines": [], "stdout": "", "stdout_lines": []} I tried with static IP Address and with DHCP but both failed. To be more specific, I installed three nodes, deployed glusterfs with the wizard. I'm in a nested virtualization environment for this lab (Vmware Esxi Hypervisor). My node IP is : 192.168.176.40 / and I want the hosted-engine vm has 192.168.176.43. Thanks, Florent

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OVN and change of mgmt network
by Gianluca Cecchi 27 Jan '21

27 Jan '21

Hello, I previously had OVN running on engine (as OVN provider with northd and northbound and southbound DBs) and hosts (with OVN controller). After changing mgmt ip of hosts (engine has retained instead the same ip), I executed again on them the command: vdsm-tool ovn-config <ip_of_engine> <nel_local_ip_of_host> Now I think I have to clean up some things, eg: 1) On engine where I get these lines below systemctl status ovn-northd.service -l . . . Sep 29 14:41:42 ovmgr1 ovsdb-server[940]: ovs|00005|reconnect|ERR|tcp: 10.4.167.40:37272: no response to inactivity probe after 5 seconds, disconnecting Oct 03 11:52:00 ovmgr1 ovsdb-server[940]: ovs|00006|reconnect|ERR|tcp: 10.4.167.41:52078: no response to inactivity probe after 5 seconds, disconnecting The two IPs are the old ones of two hosts It seems that a restart of the services has fixed... Can anyone confirm if I have to do anything else? 2) On hosts (there are 3 hosts with OVN on ip 10.4.192.32/33/34) where I currently have this output [root@ov301 ~]# ovs-vsctl show 3a38c5bb-0abf-493d-a2e6-345af8aedfe3 Bridge br-int fail_mode: secure Port "ovn-1dce5b-0" Interface "ovn-1dce5b-0" type: geneve options: {csum="true", key=flow, remote_ip="10.4.192.32"} Port "ovn-ddecf0-0" Interface "ovn-ddecf0-0" type: geneve options: {csum="true", key=flow, remote_ip="10.4.192.33"} Port "ovn-fd413b-0" Interface "ovn-fd413b-0" type: geneve options: {csum="true", key=flow, remote_ip="10.4.168.74"} Port br-int Interface br-int type: internal ovs_version: "2.7.2" [root@ov301 ~]# The IPs of kind 10.4.192.x are ok. But there is a left-over of an old host I initially used for tests, corresponding to 10.4.168.74, that now doesn't exist anymore How can I clean records for 1) and 2)? Thanks, Gianluca

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deprecating export domain?
by Charles Kozler 30 Aug '20

30 Aug '20

Hello, I recently read on this list from a redhat member that export domain is either being deprecated or looking at being deprecated To that end, can you share details? Can you share any notes/postings/bz's that document this? I would imagine something like this would be discussed in larger audience This seems like a somewhat significant change to make and I am curious where this is scheduled? Currently, a lot of my backups rely explicitly on an export domain for online snapshots, so I'd like to plan accordingly Thanks!

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Vm suddenly paused with error "vm has paused due to unknown storage error"
by Jasper Siero 18 Feb '20

18 Feb '20

Hi all, Since we upgraded our Ovirt nodes to CentOS 7 a vm (not a specific one but never more then one) will sometimes pause suddenly with the error "VM ... has paused due to unknown storage error". It happens now two times in a month. The Ovirt node uses san storage for the vm's running on it. When a specific vm is pausing with an error the other vm's keeps running without problems. The vm runs without problems after unpausing it. Versions: CentOS Linux release 7.1.1503 vdsm-4.14.17-0 libvirt-daemon-1.2.8-16 vdsm.log: VM Channels Listener::DEBUG::2015-10-25 07:43:54,382::vmChannels::95::vds::(_handle_timeouts) Timeout on fileno 78. libvirtEventLoop::INFO::2015-10-25 07:43:56,177::vm::4602::vm.Vm::(_onIOError) vmId=`77f07ae0-cc3e-4ae2-90ec-7fba7b11deeb`::abnormal vm stop device virtio-disk0 error eother libvirtEventLoop::DEBUG::2015-10-25 07:43:56,178::vm::5204::vm.Vm::(_onLibvirtLifecycleEvent) vmId=`77f07ae0-cc3e-4ae2-90ec-7fba7b11deeb`::event Suspended detail 2 opaque None libvirtEventLoop::INFO::2015-10-25 07:43:56,178::vm::4602::vm.Vm::(_onIOError) vmId=`77f07ae0-cc3e-4ae2-90ec-7fba7b11deeb`::abnormal vm stop device virtio-disk0 error eother ........... libvirtEventLoop::INFO::2015-10-25 07:43:56,180::vm::4602::vm.Vm::(_onIOError) vmId=`77f07ae0-cc3e-4ae2-90ec-7fba7b11deeb`::abnormal vm stop device virtio-disk0 error eother specific error part in libvirt vm log: block I/O error in device 'drive-virtio-disk0': Unknown error 32758 (32758) ........... block I/O error in device 'drive-virtio-disk0': Unknown error 32758 (32758) engine.log: 2015-10-25 07:44:48,945 INFO [org.ovirt.engine.core.vdsbroker.VdsUpdateRunTimeInfo] (DefaultQuartzScheduler_Worker-40) [a43dcc8] VM diataal-prod-cas1 77f07ae0-cc3e-4ae2-90ec-7fba7b11deeb moved from Up --> Paused 2015-10-25 07:44:49,003 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-40) [a43dcc8] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: VM diataal-prod-cas1 has paused due to unknown storage error. Has anyone experienced the same problem or knows a way to solve this? Kind regards, Jasper

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