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oVirt Node 4.3 Master on fc28
by femi adegoke 12 Apr '19

12 Apr '19

4.3 Master is looking good!! A few questions: - In Step #2: Fqdns: for a 3 host cluster, are we to add the 2nd & 3rd hosts? - In Step #5: Bricks: What effect does the RAID setting have? Enable Dedupe & Compression is new? Configure LV Cache: what do we enter for SSD? What happens if my disks are already all SSD, do I still benefit from using this?

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Install of oVirt.hosted-engine-setup from galaxy fails
by Vrgotic, Marko 11 Apr '19

11 Apr '19

Dear oVirt team, Install of role oVirt.hosted-engine-setup from Galaxy repo fails: - downloading role 'hosted-engine-setup', owned by oVirt [WARNING]: - oVirt.hosted-engine-setup was NOT installed successfully: - sorry, oVirt.hosted-engine-setup was not found on https://galaxy.ansible.com. Apparently it fails due to name of the repo in the Galaxy which is with “_” instead of expected “-” . Marko Vrgotic

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Re: HostedEngine cleaned up
by Strahil 11 Apr '19

11 Apr '19

The real image is defined within the XML stanza in the vdsm.log when the VM was last started . So if you remember when the last time the HostedEngine was rebooted, you can check the vdsm.log on the host. From there - check the cluster for the file. If it's missing deploy the HostedEngine again (on the previous HostedEngine cluster volume or on a completely new). Then try to import all Storages and then you will be able to import existing VMs. Best Regards, Strahil NikolovOn Apr 11, 2019 20:12, Sakhi Hadebe <sakhi(a)sanren.ac.za> wrote: > > What happened is the engine's root filesystem had filled up. My colleague tried to resize the root lvm. The engine then did not come back. In trying to resolve that he cleaned up the engine and tried to re-install it, no luck in doing that. > > That brought down all the VMs. All VMs are down. we trying to move them into one of the standalone kvm host. We have been trying to locate the VM disk images, with no luck. > > According to the of the VM xml configuration file.the disk file is /rhev/data-center/mnt/glusterSD/glustermount.goku:_vmstore/9f8ef3f6-53f2-4b02-8a6b-e171b000b420/images/b2b872cd-b468-4f14-ae20-555ed823e84b/76ed4113-51b6-44fd-a3cd-3bd64bf93685 > > Unfortunately we can find it and the solution on teh forum states that we can only find in the associated logical volume, but i think only when teh vm is running. > > The disk images we have been trying to boot up from are the one's we got from the gluster bricks, but the are far small that real images and can't boot > > > On Thu, Apr 11, 2019 at 6:13 PM Simone Tiraboschi <stirabos(a)redhat.com> wrote: >> >> >> >> On Thu, Apr 11, 2019 at 9:46 AM Sakhi Hadebe <sakhi(a)sanren.ac.za> wrote: >>> >>> Hi, >>> >>> We have a situation where the HostedEngine was cleaned up and the VMs are no longer running. Looking at the logs we can see the drive files as: >> >> >> Do you have any guess on what really happened? >> Are you sure that the disks really disappeared? >> >> Please notice that the symlinks under rhev/data-center/mnt/glusterSD/glustermount... are created on the fly only when needed. >> >> Are you sure that your host is correctly connecting the gluster storage domain? >> >>> >>> >>> 2019-03-26T07:42:46.915838Z qemu-kvm: -drive file=/rhev/data-center/mnt/glusterSD/glustermount.goku:_vmstore/9f8ef3f6-53f2-4b02-8a6b-e171b000b420/images/b2b872cd-b468-4f14-ae20-555ed823e84b/76ed4113-51b6-44fd-a3cd-3bd64bf93685,format=qcow2,if=none,id=drive-ua-b2b872cd-b468-4f14-ae20-555ed823e84b,serial=b2b872cd-b468-4f14-ae20-555ed823e84b,werror=stop,rerror=stop,cache=none,aio=native: 'serial' is deprecated, please use the corresponding option of '-device' instead >>> >>> I assume this is the disk was writing to before it went down

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Re: Hosted-engine disconnected
by Strahil 11 Apr '19

11 Apr '19

Did you import your storages again after the redeploy ? If yes, there is a tab that allows you to import your templates and VMs. Most probably you will be able to get all of them almost without issues (in my case all VMs got under the default cluster). You only need new glusterfs volume for the redeploy of the engine. Still, have you booted your Engine and connected via VNC to check what happened ? Also, keep in mind that the vdsm.log contains the XML of each VM started on the host. That was how I booted my HostedEngine when the configuration was broken. Create the following alias: alias virsh='virsh -c qemu:///system?authfile=/etc/ovirt-hosted-engine/virsh_auth.conf' With it you will be able to use virsh define XML-file virsh start HostedEngine And so on... If you have an already running HostedEngine (new deploy), try first importing existing storage domains and their VMs. If not, try to power on your HostedEngine with virsh and rescue DVD (for example CentOS 7 install DVD is a good way) and use the troubleshoot menu to fix it. By the way , how did you extend the disks? Best Regards, Strahil NikolovOn Apr 11, 2019 18:33, Tau Makgaile <tau(a)sanren.ac.za> wrote: > > Hi, > > I have been experiencing a problem with my hosted-engine after increasing / partition. The increase went well for few minutes and disconnected. It started by showing bad head and it has since unreachable/ un-ping-able until. It was confusing because vms where still running. I decided to redeploy the engine with a hope that it will pull in the same vms into the dashboard. That did not give any positive results until i opted for a redeployment. things went well until i realized it will need to new glustermounts in order to go through, which also meant it risks losing information around my vms, which i have since stopped in order to allow the redeploment to carry on. > > I now need help to export all of the information around my vms, most importantly the disk images. I have been trying to get some disk images from /gluster_bricks/data/data/ with no luck in booting them up after conversion. I am thinking there might be information missing on this images since they boot into rescue mode. > > Please share more insight on how one can locate the entire disk information or the database where vms were last running. > > I did a check into log files, and did matching of the images with vms names but i have been unsuccessful. > > Thanks in advance for you reply, > > Kind regards, > Tau > >

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Hosted-engine disconnected
by Tau Makgaile 11 Apr '19

11 Apr '19

Hi, I have been experiencing a problem with my hosted-engine after increasing / partition. The increase went well for few minutes and disconnected. It started by showing bad head and it has since unreachable/ un-ping-able until. It was confusing because vms where still running. I decided to redeploy the engine with a hope that it will pull in the same vms into the dashboard. That did not give any positive results until i opted for a redeployment. things went well until i realized it will need to new glustermounts in order to go through, which also meant it risks losing information around my vms, which i have since stopped in order to allow the redeploment to carry on. I now need help to export all of the information around my vms, most importantly the disk images. I have been trying to get some disk images from */gluster_bricks/data/data/ *with no luck in booting them up after conversion. I am thinking there might be information missing on this images since they boot into *rescue mode.* Please share more insight on how one can locate the entire disk information or the database where vms were last running. I did a check into log files, and did matching of the images with vms names but i have been unsuccessful. Thanks in advance for you reply, Kind regards, Tau

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Disk Locked
by Николаев Алексей 11 Apr '19

11 Apr '19

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Expand existing gluster storage in ovirt 4.2/4.3
by adrianquintero＠gmail.com 11 Apr '19

11 Apr '19

Hello, I have a 3 node ovirt 4.3 cluster that I've setup and using gluster (Hyperconverged setup) I need to increase the amount of storage and compute so I added a 4th host (server4.example.com) if it is possible to expand the amount of bricks (storage) in the "data" volume? I did some research and from that research the following caught my eye: old post "https://medium.com/@tumballi/scale-your-gluster-cluster-1-node-at-a-time-62…" So the question is, if taking that approach feasible? , is it even possible an oVirt point of view? --------------------------- My gluster volume: --------------------------- Volume Name: data Type: Replicate Volume ID: 003ffea0-b441-43cb-a38f-ccdf6ffb77f8 Status: Started Snapshot Count: 0 Number of Bricks: 1 x (2 + 1) = 3 Transport-type: tcp Bricks: Brick1: server1.example1.com:/gluster_bricks/data/data Brick2: server2.example.com:/gluster_bricks/data/data Brick3: server3.example.com:/gluster_bricks/data/data (arbiter) Options Reconfigured: cluster.granular-entry-heal: enable performance.strict-o-direct: on network.ping-timeout: 30 storage.owner-gid: 36 storage.owner-uid: 36 cluster.choose-local: off user.cifs: off features.shard: on cluster.shd-wait-qlength: 10000 cluster.shd-max-threads: 8 cluster.locking-scheme: granular cluster.data-self-heal-algorithm: full cluster.server-quorum-type: server cluster.quorum-type: auto cluster.eager-lock: enable network.remote-dio: enable performance.low-prio-threads: 32 performance.io-cache: off performance.read-ahead: off performance.quick-read: off transport.address-family: inet nfs.disable: on performance.client-io-threads: off Thanks.

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Re: Windows Guest timezone
by Strahil 11 Apr '19

11 Apr '19

I used to set windows machines to use HW clock in UTC , which helped for dual-boot hardware machines. Can't you use that approach and never worry about DST? Best Regards, Strahil NikolovOn Apr 11, 2019 11:42, Stefano Danzi <s.danzi(a)hawai.it> wrote: > > Hello! > > I've a guest windows VM (Server 2016) and hardware clock in oVirt > machine configuration is GMT +1. > Now we are DST period and machine timezone is GMT +2. Engine Dashboard > warn me about timezone > mismatch between configuration and running VM. I can't see a setting to > enable DST on emulated hardware. > > Some ideas? > _______________________________________________ > 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/ENKC37PNVQEZ2…

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Windows Guest timezone
by Stefano Danzi 11 Apr '19

11 Apr '19

Hello! I've a guest windows VM (Server 2016) and hardware clock in oVirt machine configuration is GMT +1. Now we are DST period and machine timezone is GMT +2. Engine Dashboard warn me about timezone mismatch between configuration and running VM. I can't see a setting to enable DST on emulated hardware. Some ideas?

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Ovirt does not support AMD EPYC CPUs?
by Erick Perez 11 Apr '19

11 Apr '19

Hi, In its current release, OVIRT only shows AMD Opteron G1,G2,G3,G4,G5 and no mention of EPYC. This thread mentioned that a respin of Ovirt will address this, but never happened. https://lists.ovirt.org/archives/list/users@ovirt.org/message/2PEAYGK5PE33W… comments?

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