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[ANN] oVirt 4.2.6 Second Release Candidate is now available
by Sandro Bonazzola 14 Aug '18

14 Aug '18

The oVirt Project is pleased to announce the availability of the oVirt 4.2.6 Second Release Candidate, as of August 15th, 2018. This update is a release candidate of the sixth in a series of stabilization updates to the 4.2 series. This is pre-release software. This pre-release should not to be used in production. This release is available now for: * Red Hat Enterprise Linux 7.5 or later * CentOS Linux (or similar) 7.5 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.5 or later * CentOS Linux (or similar) 7.5 or later See the release notes [1] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is available - oVirt Node is available [2] - oVirt Windows Guest Tools is available [2] Additional Resources: * Read more about the oVirt 4.2.6 release highlights: http://www.ovirt.org/release/4.2.6/ * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] http://www.ovirt.org/release/4.2.6/ [2] http://resources.ovirt.org/pub/ovirt-4.2-pre/iso/ -- SANDRO BONAZZOLA MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://red.ht/sig> <https://www.redhat.com/en/events/red-hat-open-source-day-italia?sc_cid=701f…>

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[ovirt-engine-api-model] Any solutions to add custom key/value pairs into entities?
by Joey Ma 14 Aug '18

14 Aug '18

Hi all, In my case, I need to add customized KVs into API model entities, such as VM, Disk, Template and etc. I looked through the API model documents and got some existing Tag/Property/CustomProperty structs, all of which have limitations and can not work it out. Are there any solutions? Thanks, Joey

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Is there a way to specify which volume is used for VM imports?
by Jayme 14 Aug '18

14 Aug '18

I have multiple data volumes and when I import a VM from an NFS attached export domain the disk always gets created on on specific volume. I understand I can move the disk from one volume to another after the fact but is there a way I can specify which volume to use for the initial import?

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Network requirements for ovirtmgmt
by Marcel Hanke 14 Aug '18

14 Aug '18

Hi, we currently have a big layer 2 network in our datacenters, so every node in a cluster can reach the other nodes in the datacenter on network layer 2. In the future we'd like to route directly on the switches and connect the nodes in one cluster, as well es other clusters in one datacenter via network layer 3. The question now is, do we need multicast and/or broadcast for any operation, or is the connectivity with layer 3 fine? Thanks Marcel

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Connection issues when using gluster + infiniband + RDMA
by housemouse＠squeakz.net 13 Aug '18

13 Aug '18

I am trying to setup gluster using Infiniband and mounting it in RDMA mode. I have created a network hook so that it configures the interfaces as MTU=65520 and CONNECTED_MODE=yes. I have a second server doing NFS with RDMA over Infiniband with some VMs on it. When I try and transfer files to the gluster storage it is taking a while and I am seeing the message “VDSM {hostname} command GetGlusterVolumeHealInfoVDS failed: Message timeout which can be caused by communication issues” This is usually followed by “Host {hostname} is not responding. It will stay in Connecting state for a grace period of 60 seconds and after that an attempt to fence the host will be issued.” I just installed the Infiniband hardware. The switch is a Qlogic 12200-18 with QLE7340 single port Infiniband cards in each of the 3 servers. The error message varies on which of the 3 nodes it comes from. Each of the 3 servers is running the opensm service.

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Passing through Quadro cards to guest
by Wesley Stewart 13 Aug '18

13 Aug '18

Has anyone experimented with this? I have had really good success with AMD cards, but consumer end graphics cards fail to load due to NVIDIA blocking them. I happened to have an NVIDIA Quadro P2000 lying around and I thought I would give it a shot. I really like these cards as they only require the 75W provided PCI power. I can pass the Quadro through just fine, however after a couple minutes of playing a video, the audio gets really "buzzy" and the video drops to about 3-5 FPS. This is while doing pretty minimal stuff. Currently testing with 720/1080 youtube videos. Card is pulling about 6-10W total. And otherwise working fine on my Windows 10 guest. I have also tried enabling/disabling MSI interrupts which the card supports without making a difference. I am running a single host setup: X10SDV-6c+ (Xeon D - 1528) running oVirt 4.2.3

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Connection issues when using gluster + infiniband + RDMA
by Matthew Hoberg 13 Aug '18

13 Aug '18

I am trying to setup gluster using Infiniband and mounting it in RDMA mode. I have created a network hook so that it configures the interfaces as MTU=65520 and CONNECTED_MODE=yes. I have a second server doing NFS with RDMA over Infiniband with some VMs on it. When I try and transfer files to the gluster storage it is taking a while and I am seeing the message “VDSM {hostname} command GetGlusterVolumeHealInfoVDS failed: Message timeout which can be caused by communication issues” This is usually followed by “Host {hostname} is not responding. It will stay in Connecting state for a grace period of 60 seconds and after that an attempt to fence the host will be issued.” I just installed the Infiniband hardware. The switch is a Qlogic 12200-18 with QLE7340 single port Infiniband cards in each of the 3 servers. The error message varies on which of the 3 nodes it comes from. Each of the 3 servers is running the opensm service. Thanks, Matt

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Isolated POC
by Martin Schutte 13 Aug '18

13 Aug '18

Good day to all, I am in the process of setting up an oVirt proof of concept for a client. There are some strict requirements for this POC. Firstly the entire POC must be isolated from the network, which means no online repos. Secondly there is a time constraint for the completion of the deployment. All to be done on bare-metal systems. I have installed oVirt numerous times on other systems, but then I was always able to have online repos. So in short I am asking for some pointers on which repos needs to be synced offline for this to work properly. I can always go and play around to figure out which ones are needed, but I do not have the luxury of time. Any advice or tips will be appreciated. Regards, Martin.

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oVirt node 4.2.x - custom multipath.conf and external storage availability
by Roberto Nunin 13 Aug '18

13 Aug '18

HI all How can I provide to my oVirt hosts a custom multipath.conf, considering that we are using shared/mirrored FC storage from HPE 3PAR with high availability of provided LUNs, using peer-persistance feature ? To configure correctly this require a custom multipath.conf is required. How I can avoid it will be overwritten during upgrades ? Second topic: Is ALUA feature supported also in oVirt nodes, like for standard RHEL 6/7 and/or CentOS 6/7 ? I was digging for a while into user's digest, but not able to find focused informations. This is the feature needed by peer-persistance, allowing two different volumes to be masked toward a given host with the same WWN and LUN number. Thanks in advance -- Roberto

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ovirt engine service needs restart after network connectivity is lost and reestablished
by g.vasilopoulos＠uoc.gr 13 Aug '18

13 Aug '18

today our network administration did some upgrades on the networking equipment, so the engine vlan went down for a while. Afterwards when it came back up 3 hosts was found as non responding, I couldn't see anything suspicious on the hosts, the problem "fixed" itself when I restarted the ovirt-engine service on the engine vm. Another "strange" side effect is that gluster was in need of healing constantly afterwards it did heal and desynch again almost immediately, whitch was "fixed" by shutting down and starting the vm's who were up at the time of the network outage.. I've seen this behaviour once more regarding the engine service, is this normal behaviour (e.g. to make the admin check if everything is ok) or is there something wrong ?

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