[one-users] After onehost enable: host in "init" state and not immediately usable

Michael Berlin michael.berlin.xtreemfs at gmail.com
Mon Apr 8 02:12:34 PDT 2013

Dear Ruben,

Thank you for the clarification.

I'm watching the issue now. It would be great if it gets implemented.

Best regards,

On 04/06/2013 12:55 AM, Ruben S. Montero wrote:
> Hi Michael,
> You email, describes the current behavior of OpenNebula. I'm afraid
> that currently the only way to tune this behavior is through the
> timers. I've opened a ticket to implement this feature:
> http://dev.opennebula.org/issues/1868
> Probably it should be a good idea to trigger a monitor action when you
> enabled a host.
> Thanks for your feedback
> Ruben
> On Fri, Apr 5, 2013 at 1:44 PM, Michael Berlin
> <michael.berlin.xtreemfs at gmail.com> wrote:
>> Hi,
>> We run OpenNebula 3.8.3 among several other services on our internal cluster
>> and we want to be able to dynamically enable and disable hosts in
>> OpenNebula.
>> OpenNebula allows this with the "onehost disable <host>" and "onehost enable
>> <host>" commands. However, after enabling it takes too long until VMs are
>> scheduled to this host. One reason is that the host is stuck in the "init"
>> state after it is enabled (seen in the output of "onehost list") until the
>> monitoring runs again.
>> As a work-around we reduced the HOST_MONITORING_INTERVAL from 600 to 30
>> seconds. Is there another way to make an enabled host immediately available?
>> The same problem arises with the scheduler: VMs are not scheduled until the
>> scheduler's interval is up and it runs again. Is there a way to tell the
>> scheduler to run immediately?
>> Thank you very much for your help.
>> Best regards,
>> Michael
>> _______________________________________________
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>> Users at lists.opennebula.org
>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org

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