I currently have an Ovirt 4.1.8 installation with a hosted engine using Gluster for storage, with the DBs hosted on a dedicated PG cluster.
For reasons, it seems possibly simpler for me to upgrade our installation by reinstalling rather than upgrading. In this case, I can happily bring down the running VMs/otherwise do things that one normally can't.
Is there any technical reason I can't/shouldn't rebuild from bare-metal, including creating a fresh hosted engine, without losing anything? I suppose a different way of asking this is, is there anything on the engine/host filesystems that I should preserve/restore for this to work?
 If this isn't an option, I'll go in to them in order to figure out a plan B; just avoiding a lot of backstory that isn't needed for the question.
I have passed storage san of a 4.1.8 test env from an HP MSA2000 to an IBM
I'm doing some basic tests inside a VM and sometimes I see this kind of
kernel: perf: interrupt took too long (6813 > 6810), lowering
kernel.perf_event_max_sample_rate to 29000
that I didn't see when using the MSA
Should I worry about them?
When installing your host make sure you select the deploy in the hosted
engine tab. You should just re install it with this option.
Le 31 janv. 2018 12:51, <spfma.tech(a)e.mail.fr> a écrit :
What can prevent the hosted engine VM from being migrated ?
I can migrate any other VM in the cluster (same servers), and it is
supposed to be configured to be migrated manually or automatically as far
as I can see.
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Hi, What are the reasons that can cause this message to appear, in a clu=
ster where most machines are able to migrate without problem ? I have th=
is problem for the Engine VM and managed to solved it for another one wh=
ich configuration prevented any kind of migration. Regards
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<div> </div>=0A<div>Hi,</div>=0A<div>What are the reasons that can=
cause this message to appear, in a cluster where most machines are able=
to migrate without problem ?</div>=0A<div>I have this problem for the E=
ngine VM and managed to solved it for another one which configuration pr=
evented any kind of migration.</div>=0A<div>Regards</div>
hello~，I want to add hosts ，but my host offline , can not connect to internal .engine add hosts , the message： installing hosts node failed . My engine was setup successful , i use engine-setup --offline OK，please help~