April 2019 - Users - oVirt List Archives

oVirt and Ceph iSCSI: separating discovery auth / target auth ?
by Matthias Leopold 01 May '19

01 May '19

Hi, I'm trying to use the Ceph iSCSI gateway with oVirt. According to my tests with oVirt 4.3.2 * you cannot separate iSCSI discovery auth and target auth * you cannot use an iSCSI gateway that has no discovery auth, but uses CHAP for targets This means I'm forced to use the same credentials for discovery auth and target auth. In Ceph iSCSI gateway I can have multiple targets with use different credentials, but I can define discovery auth only once for the whole gateway (or have no discovery auth). If all of this is correct and I want to use the Ceph iSCSI gateway with oVirt * I have to use discovery auth * the credentials for discovery auth will give every other Ceph iSCSI gateway user access to the oVirt target This is not a desirable situation. Did I understand anything wrong? Are there other ways to solve this? thx matthias

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integration with openstack nove-compute
by ehsan.sabooni＠gmail.com 01 May '19

01 May '19

hello dear all, is it possible to make a compute-nove VM inside oVirt, using which, to be able to create VM instances inside oVirt through openstack horizon? to make it simple, is it possible to have oVirt has the hypervisor for openstack, while having a nova-compute node as a VM inside ovirt? as a hint, the same thing is possible via vsphere vCenter, if we install vCenter driver on the nova-compute node. thank you for your support!

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ovirt 4.3.3 Disk for New VM is always Preallocated
by Strahil Nikolov 01 May '19

01 May '19

Hi All, I have stumbled upon a potential bug in UI. Can someone test it , in order to reproduce it ? How to reproduce:1. Create a VM2. Within the new VM wizard - Create a disk and select Thin Provision.3. Create the VM and wait for the disk to be completed.4. Check the disk within UI - Allocation Policy is set to "Preallocation" Best Regards,Strahil Nikolov

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Update storage lease via python sdk
by klaasdemter＠gmail.com 30 Apr '19

30 Apr '19

Hi, I'm trying to update a storage lease via python sdk but I can’t seem to figure out how to wait for the storage lease configuration to finish. The vm status does not show “configuration in progress” just “up” and the event is created as soon as I issue the update, not when its done. Can someone give me a hint or point me to an example? https://github.com/Klaas-/ovirt-engine-sdk/blob/4094d3a2d4b011d4926e58374dd… Greetings Klaas

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Re: 4.3.x upgrade and issues with OVN
by Weber, Charles (NIH/NIA/IRP) [E] 30 Apr '19

30 Apr '19

Complete shutdown of 4.3.3 cluster, change cluster from 4.2 to 4.3 compatibility and upgrade of all hosts to current 4.3.3 with patches has seemingly fixed everything.

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Re: Please Help, Ovirt Node Hosted Engine Deployment Problems 4.3.2
by Strahil 30 Apr '19

30 Apr '19

> Each data has to be written on the host itself and on the two remote ones so you are going to have 1000 mbps / 2 (external replicas ) / 8 (bit/bytes) = a max of 62.5 MB/s sustained throughput shared between all the VMs and this ignoring all the overheads. > In practice it will be much less ending in a barely usable environment. I am currently in this type of setup (replica 2 arbiter 1 on 1 gbit/s both storage and oVirt connectivity) and the maximum write (sequential) speed I can reach is aprox 89 MB/s. I guess with replica 3 the maximum will be as Simone stated. My maximum read speed is aprox 500 MB/s despite that local NVMe is capable of 1.3 GB/s and I guess FUSE is not using the local brick no matter I have set it up with cluster.use-local (or whatever it was called). If possible , get a 10 gbit/s connectivity or multiple gbit interfaces ( as I'm planing to do in the nearest future). Best Regards, Strahil Nikolov

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HA VM not work when VM OS cannot run normally
by du_hongyu＠yeah.net 30 Apr '19

30 Apr '19

HI， I create a HA VM in ovirt follaw this article https://ovirt.org/develop/ha-vms.html#highly-available-vms-and-io-errors when my vm‘s OS can not run, but ovirt consider this vm is up, so is this a bug for HA VM? can you give me some advise? Regards Hongyu Du

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Ovirt Nested in VMWare (Working approach)
by RabidCicada 30 Apr '19

30 Apr '19

I worked through this previously and posted in IRC yesterday about working around running ovirt nested under VMWare. I figured i'd post it to the mail group so that it would be available in it's entirety here for future reference: The following gists explain the 3 major adjustments that have to be made currently to get nested virt under vmware working: https://gist.github.com/RabidCicada/993349b3a7eaf35637122f0122fdedb3 https://gist.github.com/RabidCicada/bc01eb0b13195faa26520c0fb666ec34 https://gist.github.com/RabidCicada/37ff6f1ed2afd8dd4edefac735536c69 https://gist.github.com/RabidCicada/40655db1582ca5d07c9bbf2c429cdd01 Hopefully it can save others the huge amount of time it took me to figure it all out. Specifically it's a problem with the --machine type at 3 major parts of the vm creation for the hosted-engine. 1) You have to fix the virt-install to use --machine pc-i440fx-rhel7.2.0 2) You have to fix the guestfish spinup of the partially configured vm to use --machine pc-i440fx-rhel7.2.0, where they edit the nic config among other things 3) You have to tell vdsm on the node to use --machine pc-i440fx-rhel7.2.0 I don't know the underlying reason why a --machine type > pc-i440fx-rhel7.2.0 breaks the system but it ends up resulting in a bios freeze. Again, Hope this helps someone. Suggested only to use for a test/dev system.

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[QA][Feedback Needed] RDO Stein integration testing
by Sandro Bonazzola 30 Apr '19

30 Apr '19

Hi, RDO Stein has been released a few days ago: https://blogs.rdoproject.org/2019/04/rdo-stein-released/ I opened test bug for the providers oVirt is consuming from OpenStack: Neutron, Glance and Cinder. Has anyone capacity for testing this (not on production systems!) and give feedback? Bug 1704350 <https://bugzilla.redhat.com/show_bug.cgi?id=1704350> - Test neutron integration with RDO Stein Bug 1704349 <https://bugzilla.redhat.com/show_bug.cgi?id=1704349> - Test glance integration with RDO Stein Bug 1704352 <https://bugzilla.redhat.com/show_bug.cgi?id=1704352> - Test Cinder integration with RDO Stein Thanks, -- SANDRO BONAZZOLA MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://red.ht/sig>

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ovirt 4.3.3 cannot create VM in non-default cluster
by Strahil Nikolov 29 Apr '19

29 Apr '19

Hi All, I'm having an issue to create a VM in my second cluster called "Intel" which consists of only 1 Host -> ovirt3 which plays the role of a gluster arbiter in my hyperconverged setup. When I try to create the VM (via UI) I receive: "Cannot add VM. CPU Profile doesn't match provided Cluster." When I try to select the host where I can put the VM , I see only ovirt1 or ovirt2 which are part of the 'Default' Cluster . Do we have an opened bug for that ? Note: A workaround is to create the VM in the Default cluster and later edit it to match the needed Cluster. Best Regards,Strahil Nikolov

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