oVirt node loses gluster volume UUID after reboot, goes to emergency mode every time I reboot.
by michael＠wanderingmad.com
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 years, 10 months
SPICE and Windows 10
by Colin Coe
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
4 years, 10 months
Re: Single instance scaleup.
by Strahil
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
4 years, 11 months
Active-Passive Disaster Recovery
by Paulo Silva
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>
4 years, 11 months
Single instance scaleup.
by Leo David
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
4 years, 11 months
Unable to find OVF_STORE after recovery / upgrade
by Sam Cappello
This is a multi-part message in MIME format.
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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
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<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Hi,<br>
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:<br>
- ovirt-ha-agent running 100% CPU on both nodes<br>
- messages in the UI that the Hosted Engine storage Domain isn't
active and Failed to import the Hosted Engine Storage Domain<br>
- hosted engine is not visible in the UI<br>
and the following repeating in the agent.log:<br>
<br>
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)<br>
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)<br>
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<br>
MainThread::INFO::2016-10-03
12:38:37,985::hosted_engine::612::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_vdsm)
Initializing VDSM<br>
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<br>
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<br>
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<br>
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<br>
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<br>
MainThread::INFO::2016-10-03
12:39:01,236::image::126::ovirt_hosted_engine_ha.lib.image.Image::(prepare_images)
Preparing images<br>
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<br>
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<br>
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<br>
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<br>
<br>
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?<br>
i am using remote NFS storage.<br>
if i try and add the hosted engine storage domain it says it is
already registered.<br>
i have also upgraded and am now running <span
class="gwt-InlineLabel">oVirt Engine Version: 4.0.4.4-1.el7.centos<br>
hosts were installed using ovirt-node. currently at
3.10.0-327.28.3.el7.x86_64<br>
if a fresh install is best, any advice / pointer to doc that
explains best way to do this?<br>
i have not moved my most important server over to this cluster yet
so i can take some downtime to reinstall.<br>
thanks!<br>
sam<br>
<br>
</span><br>
</body>
</html>
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4 years, 11 months
"Upgrade" from oVirt to RHV
by Vinícius Ferrão
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 years, 11 months
