[ovirt-users] HostedEngine with HA

[Carlos Rodrigues]

On Thu, 2016-08-18 at 11:04 +0200, Simone Tiraboschi wrote:
> On Thu, Aug 18, 2016 at 10:36 AM, Carlos Rodrigues <cmar at eurotux.com>
> wrote:
> > 
> > On Thu, 2016-08-18 at 10:27 +0200, Simone Tiraboschi wrote:
> > > 
> > > On Thu, Aug 18, 2016 at 10:22 AM, Carlos Rodrigues <cmar at eurotux.
> > > com>
> > > wrote:
> > > > 
> > > > 
> > > > On Thu, 2016-08-18 at 08:54 +0200, Simone Tiraboschi wrote:
> > > > > 
> > > > > 
> > > > > On Tue, Aug 16, 2016 at 12:53 PM, Carlos Rodrigues <cmar at euro
> > > > > tux.
> > > > > com>
> > > > > wrote:
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > On Sun, 2016-08-14 at 14:22 +0300, Roy Golan wrote:
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > On 12 August 2016 at 20:23, Carlos Rodrigues <cmar at eurotu
> > > > > > > x.co
> > > > > > > m>
> > > > > > > wrote:
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > Hello,
> > > > > > > > 
> > > > > > > > I have one cluster with two hosts with power management
> > > > > > > > correctly
> > > > > > > > configured and one virtual machine with HostedEngine
> > > > > > > > over
> > > > > > > > shared
> > > > > > > > storage with FiberChannel.
> > > > > > > > 
> > > > > > > > When i shutdown the network of host with HostedEngine
> > > > > > > > VM,  it
> > > > > > > > should be
> > > > > > > > possible the HostedEngine VM migrate automatically to
> > > > > > > > another
> > > > > > > > host?
> > > > > > > > 
> > > > > > > migrate on which network?
> > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > What is the expected behaviour on this HA scenario?
> > > > > > > 
> > > > > > > After a few minutes your vm will be shutdown by the High
> > > > > > > Availability
> > > > > > > agent, as it can't see network, and started on another
> > > > > > > host.
> > > > > > 
> > > > > > 
> > > > > > I'm testing this scenario and after shutdown network, it
> > > > > > should
> > > > > > be
> > > > > > expected that agent shutdown ha and started on another
> > > > > > host,
> > > > > > but
> > > > > > after
> > > > > > couple minutes nothing happens and on host with network we
> > > > > > getting
> > > > > > the
> > > > > > following messages:
> > > > > > 
> > > > > > Aug 16 11:44:08 ied-blade11.install.eurotux.local ovirt-ha-
> > > > > > agent[2779]:
> > > > > > ovirt-ha-agent
> > > > > > ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.con
> > > > > > fig
> > > > > > ERROR
> > > > > > Unable to get vm.conf from OVF_STORE, falling back to
> > > > > > initial
> > > > > > vm.conf
> > > > > > 
> > > > > > I think the HA agent its trying to get vm configuration but
> > > > > > some
> > > > > > how it
> > > > > > can't get vm.conf to start VM.
> > > > > 
> > > > > No, this is a different issues.
> > > > > In 3.6 we added a feature to let the engine manage also the
> > > > > engine VM
> > > > > itself; ovirt-ha-agent will pickup the latest engine VM
> > > > > configuration
> > > > > from the OVF_STORE which is managed by the engine.
> > > > > If something goes wrong, ovirt-ha-agent could fallback to the
> > > > > initial
> > > > > (bootstrap time) vm.conf. This will normally happen till you
> > > > > add
> > > > > your
> > > > > first regular storage domain and the engine imports the
> > > > > engine
> > > > > VM.
> > > > 
> > > > But i already have my first storage domain and storage engine
> > > > domain
> > > > and already imported engine VM.
> > > > 
> > > > I'm using 4.0 version.
> > > 
> > > This seams an issue, can you please share your
> > > /var/log/ovirt-hosted-engine-ha/agent.log ?
> > > 
> > 
> > I sent it in attachment.
> 
> Nothing strange here;
> do you see a couple of disks with alias OVF_STORE on the hosted-
> engine
> storage domain if you check it from the engine?
> 

Do you mean any disk label?
I don't have it anyone:

[root at ied-blade11 ~]#  ls /dev/disk/by-label/
ls: cannot access /dev/disk/by-label/: No such file or directory

> > 
> > > 
> > > > 
> > > > > 
> > > > > 
> > > > > > 
> > > > > > 
> > > > > > Regards,
> > > > > > Carlos Rodrigues
> > > > > > 
> > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > Regards,
> > > > > > > > 
> > > > > > > > --
> > > > > > > > Carlos Rodrigues
> > > > > > > > 
> > > > > > > > Engenheiro de Software Sénior
> > > > > > > > 
> > > > > > > > Eurotux Informática, S.A. | www.eurotux.com
> > > > > > > > (t) +351 253 680 300 (m) +351 911 926 110
> > > > > > > > 
> > > > > > > > _______________________________________________
> > > > > > > > Users mailing list
> > > > > > > > Users at ovirt.org
> > > > > > > > http://lists.ovirt.org/mailman/listinfo/users
> > > > > > > > 
> > > > > > > 
> > > > > > --
> > > > > > Carlos Rodrigues
> > > > > > 
> > > > > > Engenheiro de Software Sénior
> > > > > > 
> > > > > > Eurotux Informática, S.A. | www.eurotux.com
> > > > > > (t) +351 253 680 300 (m) +351 911 926 110
> > > > > > 
> > > > > > _______________________________________________
> > > > > > Users mailing list
> > > > > > Users at ovirt.org
> > > > > > http://lists.ovirt.org/mailman/listinfo/users
> > > > --
> > > > Carlos Rodrigues
> > > > 
> > > > Engenheiro de Software Sénior
> > > > 
> > > > Eurotux Informática, S.A. | www.eurotux.com
> > > > (t) +351 253 680 300 (m) +351 911 926 110
> > > > 
> > --
> > Carlos Rodrigues
> > 
> > Engenheiro de Software Sénior
> > 
> > Eurotux Informática, S.A. | www.eurotux.com
> > (t) +351 253 680 300 (m) +351 911 926 110
-- 
Carlos Rodrigues 

Engenheiro de Software Sénior

Eurotux Informática, S.A. | www.eurotux.com
(t) +351 253 680 300 (m) +351 911 926 110