- Users - oVirt List Archives

oVirt node loses gluster volume UUID after reboot, goes to emergency mode every time I reboot.
by michael＠wanderingmad.com 26 May '19

26 May '19

This only started to happen with oVirt node 4.3, 4.2 didn't have issue. Since I updated to 4.3, every reboot the host goes into emergency mode. First few times this happened I re-installed O/S from scratch, but after some digging I found out that the drives it mounts in /etc/fstab cause the problem, specifically these mounts. All three are single drives, one is an SSD and the other 2 are individual NVME drives. UUID=732f939c-f133-4e48-8dc8-c9d21dbc0853 /gluster_bricks/storage_nvme1 auto defaults 0 0 UUID=5bb67f61-9d14-4d0b-8aa4-ae3905276797 /gluster_bricks/storage_ssd auto defaults 0 0 UUID=f55082ca-1269-4477-9bf8-7190f1add9ef /gluster_bricks/storage_nvme2 auto defaults 0 0 In order to get the host to actually boot, I have to go to console, delete those mounts, reboot, and then re-add them, and they end up with new UUIDs. all of these hosts reliably rebooted in 4.2 and earlier, but all the versions of 4.3 have this same problem (I keep updating to hope issue is fixed).

4 8

SPICE and Windows 10
by Colin Coe 26 May '19

26 May '19

Hi all We've just updated our dev environment from 4.1 to RHV 4.3 and found that while a lot better, Windows 10 under SPICE still isn't great. We're running dual screen VMs at 2560x1440 resolution. The Windows login screen is particularly bad although once logged in it gets better but not great. The benchmark here is Windows 10 vs Windows 7 VMs. We've gone into settings / advanced and set "configure for best performance". Latest RHV tools (4.3-6) are installed. We've also created "/etc/ovirt-engine/osinfo.conf.d/20-overload.properties" containing: os.windows_10.devices.display.vramMultiplier.value = 4 os.windows_10x64.devices.display.vramMultiplier.value = 4 When we set the multiplier to 8, as recommended in another thread, ovirt-engine fails to restart. I know there have been a few threads on this but I'd like to ask what is the advice for RHV/oVirt 4.3 to make Windows 10 faster? VDI on RHV makes up an important part of what we do and RDP, VNC, etc are not an option. Thanks CC

3 5

Is it possible to install oVirt metrics store without a RH subscription?
by Jayme 26 May '19

26 May '19

Is a paid Redhat subscription required to install oVirt metrics store?

3 2

Re: Single instance scaleup.
by Strahil 26 May '19

26 May '19

Hi Leo, Gluster is quite smart, but in order to provide any hints , can you provide output of 'gluster volume info <glustervol>'. If you have 2 more systems , keep in mind that it is best to mirror the storage on the second replica (2 disks on 1 machine -> 2 disks on the new machine), while for the arbiter this is not neccessary. What is your network and NICs ? Based on my experience , I can recommend at least 10 gbit/s interfase(s). Best Regards, Strahil NikolovOn May 26, 2019 07:52, Leo David <leoalex(a)gmail.com> wrote: > > Hello Everyone, > Can someone help me to clarify this ? > I have a single-node 4.2.8 installation ( only two gluster storage domains - distributed single drive volumes ). Now I just got two identintical servers and I would like to go for a 3 nodes bundle. > Is it possible ( after joining the new nodes to the cluster ) to expand the existing volumes across the new nodes and change them to replica 3 arbitrated ? > If so, could you share with me what would it be the procedure ? > Thank you very much ! > > Leo

2 1

Active-Passive Disaster Recovery
by Paulo Silva 25 May '19

25 May '19

Hi, I want to setup an Active-Passive between 2 sites using oVirt 4.3. For now I have a primary site with an ovirt-engine, 2 ovirt hosts and 5 VMs in an iscsi storage. The backup site will have an ovirt-engine with 2 ovirt hosts and an iscsi storage that will will have the same LUNs of the primary replicated. I'm reading the DR Guide ( https://ovirt.org/documentation/disaster-recovery-guide/) in the backup site do I need to manually create the storage domains and the VM networks or will the ansible playbook take care of that? Thanks -- Paulo Silva <paulojjs(a)gmail.com>

3 2

Single instance scaleup.
by Leo David 25 May '19

25 May '19

Hello Everyone, Can someone help me to clarify this ? I have a single-node 4.2.8 installation ( only two gluster storage domains - distributed single drive volumes ). Now I just got two identintical servers and I would like to go for a 3 nodes bundle. Is it possible ( after joining the new nodes to the cluster ) to expand the existing volumes across the new nodes and change them to replica 3 arbitrated ? If so, could you share with me what would it be the procedure ? Thank you very much ! Leo

1 0

Unable to find OVF_STORE after recovery / upgrade
by Sam Cappello 25 May '19

25 May '19

This is a multi-part message in MIME format. --------------05F3D0780062C6D37C1619A7 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi, so i was running a 3.4 hosted engine two node setup on centos 6, had some disk issues so i tried to upgrade to centos 7 and follow the path 3.4 > 3.5 > 3.6 > 4.0. i screwed up dig time somewhere between 3.6 and 4.0, so i wiped the drives, installed a fresh 4.0.3, then created the database and restored the 3.6 engine backup before running engine-setup as per the docs. things seemed to work, but i have the the following issues / symptoms: - ovirt-ha-agent running 100% CPU on both nodes - messages in the UI that the Hosted Engine storage Domain isn't active and Failed to import the Hosted Engine Storage Domain - hosted engine is not visible in the UI and the following repeating in the agent.log: MainThread::INFO::2016-10-03 12:38:27,718::hosted_engine::461::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(start_monitoring) Current state EngineUp (score: 3400) MainThread::INFO::2016-10-03 12:38:27,720::hosted_engine::466::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(start_monitoring) Best remote host vmhost1.oracool.net (id: 1, score: 3400) MainThread::INFO::2016-10-03 12:38:37,979::states::421::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(consume) Engine vm running on localhost MainThread::INFO::2016-10-03 12:38:37,985::hosted_engine::612::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_vdsm) Initializing VDSM MainThread::INFO::2016-10-03 12:38:45,645::hosted_engine::639::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images) Connecting the storage MainThread::INFO::2016-10-03 12:38:45,647::storage_server::219::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server) Connecting storage server MainThread::INFO::2016-10-03 12:39:00,543::storage_server::226::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server) Connecting storage server MainThread::INFO::2016-10-03 12:39:00,562::storage_server::233::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server) Refreshing the storage domain MainThread::INFO::2016-10-03 12:39:01,235::hosted_engine::666::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images) Preparing images MainThread::INFO::2016-10-03 12:39:01,236::image::126::ovirt_hosted_engine_ha.lib.image.Image::(prepare_images) Preparing images MainThread::INFO::2016-10-03 12:39:09,295::hosted_engine::669::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images) Reloading vm.conf from the shared storage domain MainThread::INFO::2016-10-03 12:39:09,296::config::206::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file) Trying to get a fresher copy of vm configuration from the OVF_STORE MainThread::WARNING::2016-10-03 12:39:16,928::ovf_store::107::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan) Unable to find OVF_STORE MainThread::ERROR::2016-10-03 12:39:16,934::config::235::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file) Unable to get vm.conf from OVF_STORE, falling back to initial vm.conf I have searched a bit and not really found a solution, and have come to the conclusion that i have made a mess of things, and am wondering if the best solution is to export the VMs, and reinstall everything then import them back? i am using remote NFS storage. if i try and add the hosted engine storage domain it says it is already registered. i have also upgraded and am now running oVirt Engine Version: 4.0.4.4-1.el7.centos hosts were installed using ovirt-node. currently at 3.10.0-327.28.3.el7.x86_64 if a fresh install is best, any advice / pointer to doc that explains best way to do this? i have not moved my most important server over to this cluster yet so i can take some downtime to reinstall. thanks! sam --------------05F3D0780062C6D37C1619A7 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body bgcolor="#FFFFFF" text="#000000"> Hi, so i was running a 3.4 hosted engine two node setup on centos 6, had some disk issues so i tried to upgrade to centos 7 and follow the path 3.4 > 3.5 > 3.6 > 4.0. i screwed up dig time somewhere between 3.6 and 4.0, so i wiped the drives, installed a fresh 4.0.3, then created the database and restored the 3.6 engine backup before running engine-setup as per the docs. things seemed to work, but i have the the following issues / symptoms: - ovirt-ha-agent running 100% CPU on both nodes - messages in the UI that the Hosted Engine storage Domain isn't active and Failed to import the Hosted Engine Storage Domain - hosted engine is not visible in the UI and the following repeating in the agent.log: MainThread::INFO::2016-10-03 12:38:27,718::hosted_engine::461::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(start_monitoring) Current state EngineUp (score: 3400) MainThread::INFO::2016-10-03 12:38:27,720::hosted_engine::466::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(start_monitoring) Best remote host vmhost1.oracool.net (id: 1, score: 3400) MainThread::INFO::2016-10-03 12:38:37,979::states::421::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(consume) Engine vm running on localhost MainThread::INFO::2016-10-03 12:38:37,985::hosted_engine::612::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_vdsm) Initializing VDSM MainThread::INFO::2016-10-03 12:38:45,645::hosted_engine::639::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images) Connecting the storage MainThread::INFO::2016-10-03 12:38:45,647::storage_server::219::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server) Connecting storage server MainThread::INFO::2016-10-03 12:39:00,543::storage_server::226::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server) Connecting storage server MainThread::INFO::2016-10-03 12:39:00,562::storage_server::233::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server) Refreshing the storage domain MainThread::INFO::2016-10-03 12:39:01,235::hosted_engine::666::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images) Preparing images MainThread::INFO::2016-10-03 12:39:01,236::image::126::ovirt_hosted_engine_ha.lib.image.Image::(prepare_images) Preparing images MainThread::INFO::2016-10-03 12:39:09,295::hosted_engine::669::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images) Reloading vm.conf from the shared storage domain MainThread::INFO::2016-10-03 12:39:09,296::config::206::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file) Trying to get a fresher copy of vm configuration from the OVF_STORE MainThread::WARNING::2016-10-03 12:39:16,928::ovf_store::107::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan) Unable to find OVF_STORE MainThread::ERROR::2016-10-03 12:39:16,934::config::235::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file) Unable to get vm.conf from OVF_STORE, falling back to initial vm.conf I have searched a bit and not really found a solution, and have come to the conclusion that i have made a mess of things, and am wondering if the best solution is to export the VMs, and reinstall everything then import them back? i am using remote NFS storage. if i try and add the hosted engine storage domain it says it is already registered. i have also upgraded and am now running oVirt Engine Version: 4.0.4.4-1.el7.centos hosts were installed using ovirt-node. currently at 3.10.0-327.28.3.el7.x86_64 if a fresh install is best, any advice / pointer to doc that explains best way to do this? i have not moved my most important server over to this cluster yet so i can take some downtime to reinstall. thanks! sam </body> </html> --------------05F3D0780062C6D37C1619A7--

3 2

[Feedback Needed] oVirt metrics store
by Shirly Radco 23 May '19

23 May '19

Hi, In the latest oVirt 4.3.z and 4.2.z releases we have simplified the metrics store installation immensely and updated it to be based on OpenShift 3.11, with Elasticsearch and Kibana 5. The oVirt metrics store provides monitoring for the oVirt hosts and vms, for both metrics and logs with pre-built example dashboards and self service visualizations in Kibana. 5 steps for installing oVirt metrics store: 1. Update variables files 2. Run 1st ansible playbook -> creates the vms 3. Run 2nd ansible playbook -> deploys the metrics store on the created vms 4. Run 3rd ansible playbook -> configures the data collectors on the oVirt hosts and engine 4. Load example dashboards to Kibana In addition, we have replaced Fluentd with Rsyslog in 4.3.z hosts, for better performance. I invite you to try it out and give us feedback. - Installation guide - https://ovirt.org/documentation/metrics-install-guide/metrics_store_install… - User guide - https://ovirt.org/documentation/metrics-user-guide/metrics-user-guide.html - Short installation video <https://dms.licdn.com/playback/C5605AQHirxO3r-3OFw/14a815a1904945ac83774d7e…> Best regards, -- SHIRLY RADCO BI SENIOR SOFTWARE ENGINEER Red Hat Israel <https://www.redhat.com/> <https://red.ht/sig>

1 0

enabling vPMU for virtual machine
by Jarosław Prokopowski 23 May '19

23 May '19

Hi Guys, Is there a way to enable vPMU for VM in oVirt? I already enabled Nested Virtualization on hosts and installed vdsm-hook-nestedvt. In libvirt it is possible to set <cpu mode='host-passthrough'/> This blog post shows how to set it in libvirt xml vm config: https://stackoverflow.com/questions/46490857/how-to-enable-pmu-in-kvm-guest A clue from Red Hat: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/ht… Maybe something with cpuflags? https://mpolednik.github.io/2017/07/31/cpuflags-ovirt-hook-cpu-features/ Thanks Jarek

1 1

"Upgrade" from oVirt to RHV
by Vinícius Ferrão 22 May '19

22 May '19

Hello, I would like to know if there’s a supported path to move from oVirt to RHV. oVirt is running on version 4.3.0.4-1.el7. RHV would be version 4.3.3.7-0.1.el7. I was thinking in reinstalling a host with RHV 4.3 and adding it to the oVirt HE. Move all the VM’s to the RHV host and than do the same process. After it install a new RHVH-M to remove the oVirt Engine. Not sure if this would work or not. Thanks,

4 3