[ovirt-users] Testing self hosted engine in 3.6: hostname not resolved error

Gianluca Cecchi gianluca.cecchi at gmail.com
Thu Oct 22 15:28:16 UTC 2015


On Thu, Oct 22, 2015 at 5:08 PM, Simone Tiraboschi <stirabos at redhat.com>
wrote:

>
>> engine is up and admin web portal accessible and host results up.
>>
>> I expected storage to be configured inside admin web portal but
>> apparently I don't see anything already configured and also I don't see the
>> sh engine VM listed... is it correct?
>>
>
> No, we have an open bug on that:
> https://bugzilla.redhat.com/show_bug.cgi?id=1269768
>
> You can try to manually import it in the mean time.
>

Ok, I'll try.
So when bug solved, if I have a problem with the engine and for example I'm
not able to connect to it through ssh and/or web admin console, what other
means would I have to connect to it console and check (eg if it is in
kernel panic for any reason)?
During setup I was proposed to connect via remote-viewer via a temporary
password; I imagine this way is not usable after install, correct?




>
> But hosted-engine storage domain can just contain the engine VM so you
> still need to add a regular storage domain for other VMs.
>
>
>>

Ah, ok. I thought that the initial storage domain would have become the
first storage domain for general VMs purposes too...
So actually if on dedicated filesystem/device, it could be small in size,
say 5-10Gb if I use the appliance, correct?



> BTW: what is the 2Gb file system on loop device?
>>
>
> It was used by hosted-engine-setup as a fake storage pool to bootstrap the
> hosted-engine storage domain.
> It shouldn't be there at the end.
> Could you please attach hosted-engine-setup logs to let me check why it's
> still there?
>

here it is:
https://drive.google.com/file/d/0BwoPbcrMv8mvRFFKSmR0REN3Qkk/view?usp=sharing



>
>
>>
>> I configured the storage domain part as NFS, pointing
>> to ovc71.localdomain.local:/NFS_DOMAIN
>> Reading page at
>> http://www.ovirt.org/Features/Self_Hosted_Engine
>>
>> it is not clear to me what to do next if I want for example keep a single
>> host with its sh engine as a replacement concept of what before was
>> all-in-one... and start creating VMs....
>>
>
> You have to setup your first regular data domain for other VMs: you can
> add another NFS one.
>

OK.
In case I want to setup a single host with self hosted engine, could I
configure on hypervisor
a) one NFS share for sh engine
b) one NFS share for ISO DOMAIN
c) a local filesystem to be used to create then a local POSIX complant FS
storage domain
and work this way as a replacement of all-in-one?



>>
> Put the host in global maintenance (otherwise the engine VM will be
> restarted)
> Shutdown the engine VM
> Shutdown the host
>
>
>>
>>
Ok. And for starting all again, is this correct:

a) power on hypevisor
b) hosted-engine --set-maintenance --mode=none

other steps required?
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