[ovirt-users] It is possible to use vdsClient / virsh to start VMs in the event that engine is down?

Liam Curtis lcurtis at datto.com
Fri Oct 30 23:25:56 UTC 2015


Thank you Jiri!

I had tried this, but your post made me think of googling
/etc/libvirt/passwd.db a bit more and discovered the sasldblistusers2 -f
/etc/libvirt/passwd.db command which showed me 2 users including
root at localbox...when I entered that user it worked. Still cannot start
turned-off vms this way, but its furtehr than I got.

Thanks again.



On Fri, Oct 30, 2015 at 1:29 PM, Jiri Belka <jbelka at redhat.com> wrote:

> > I do not see a way to start vm's in the event that an engine is down. I
> see
> > vdsClient -s 0 destroy works to shut them down.
>
> Yes, engine is SPOF. They invented hosted engine solution which pretends
> to bringe HA for engine but...
>
> I have no idea why it does not use JBoss based features like clustering.
>
> > Also, is it still possible to use non-read-only virsh commands? i tried
> using
> > saslpasswd2 to create an account, but that did not seem to work.
>
> You are doing something wrong then. Auth for virsh works ok, you just
> have to know how libvirt works with that sasl :)
>
> # grep ^sasldb /etc/sasl2/libvirt.conf
> sasldb_path: /etc/libvirt/passwd.db
>
> # saslpasswd2 -c -a libvirt testovic
> ...
> # strings /etc/libvirt/passwd.db | grep ^testovic
> testovic
>
> j.
>



-- 

*Liam Curtis*
Manager of Systems EngineeringDatto, Inc.(203) 529-4949 x228
www.datto.com

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