[ovirt-users] HostedEngine with HA

[Simone Tiraboschi]

On Thu, Aug 18, 2016 at 11:25 AM, Carlos Rodrigues <cmar at eurotux.com> wrote:
> 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

No I mean: go to the engine web-ui, select the hosted-engine storage
domain, check the disks there.

>> > > > > > 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
>