I've powered off a host of a KVM cluster to simulate the server failure and
I'm experiencing the "Agent state cannot be determined, do nothing" loop.

How I can tell the manager that the host is died and to start the HA
procedure? There is some field on the db I can update?





2013/7/29 Kirk Jantzer <kirk.jant...@gmail.com>

> Great information, thanks so much for sharing!!
>
>
> On Mon, Jul 29, 2013 at 4:28 AM, Ryan Lei <ryan...@cht.com.tw> wrote:
>
> > FYR, I have done some similar tests several weeks ago to test the host HA
> > functionality.
> >
> > CS 4.0.2 + XenServer 6.0.2: Works as expected. HA-enabled VMs (including
> > System VMs) were automatically restarted on HA-dedicated hosts.
> > CS 4.1.0 + XCP 1.6: No HA thing happened at all much like what you
> > described. The states of VMs and hosts were just like before, but
> > inaccessible. CloudStack just couldn't seem to detect the host down!
> > CS 4.1.1 (git) + XenServer 6.1: Works as expected. Just like the first
> > case.
> >
> > I didn't have time to try other combinations, and the logs are gone, but
> I
> > guess the problem more likely has to to with XCP support than CS 4.1.0.
> >
> >
> >
> -------------------------------------------------------------------------------------------
> > Yu-Heng (Ryan) Lei, Associate Reasearcher
> > Chunghwa Telecom Laboratories / Cloud Computing Laboratory
> > ryan...@cht.com.tw<
> >
> https://email.cht.com.tw/owa/redir.aspx?C=-wE1FEC3G0SWYpVkiWo8SsDdf3ZqO9AIuAPTzRnFYCUi-z4YljtI_hyVKkNHfn9F1Bn-vUWJnQ4.&URL=mailto%3aryanlei%40cht.com.tw
> > >
> > or
> > ryanlei750...@gmail.com
> >
> >
> >
> > On Thu, Jul 25, 2013 at 2:07 AM, Kirk Jantzer <kirk.jant...@gmail.com
> > >wrote:
> >
> > > Can someone "explain like I'm 5" how HA in CS should work? I have 4.1
> > setup
> > > with XCP hosts. To simulate a host failure, I've hard powered off a
> host
> > > through iDRAC and CS doesn't seem to know about it, at all -- the
> > instances
> > > still show as running, but I cannot connect to them, and the host shows
> > as
> > > up in the infrastructure section.
> > >
> > > The instances, including the SSVM, that were on there are "gone" and
> have
> > > not been restarted on any of the other hosts.
> > >
> > > --
> > > Regards,
> > >
> > > Kirk Jantzer
> > > http://about.met/kirkjantzer
> > >
> >
>
>
>
> --
> Regards,
>
> Kirk Jantzer
> c: (678) 561-5475
> http://about.met/kirkjantzer
>

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