[ovirt-users] [Ovirt 4.0] HA VM fail to start on another Host.

[knarra]

On 04/25/2017 08:45 PM, TranceWorldLogic . wrote:
> Hi,
>
> This is regarding HA VM fail to restart on other host.
>
> I have setup, which has 2 host in a cluster let say host1 and host2.
> And one HA VM (with High priority), say vm1.
> And also not storage domain is configure on host3 and it available all 
> time.
>
> 1> Initially vm1 was running on host2.
> 2> Then I power OFF host2 to see whether ovirt start vm1 on host1.
>
> I found two result in this case as below:
> 1> Sometime vm1 retrying to start but retrying on host2 itself.
> 2> Sometime vm1 move in down state without retrying.
>
> Can anyone explain about this behaviour ? Or Is this an issue ?
>
> Note : I am using Ovirt 4.0.
>
> Thanks,
> ~Rohit
>
>
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users

Hi,

       If a host is powered off and if powermanagment is enabled engine 
will fence the host and restarts it. During this process host residing 
on the vm  will be shutdown and will be restarted on another node. All 
the events can be seen in the engine UI.

     Hope you have not missed to enable power management on the hosts.  
with out enabling power management even if the vm is marked to be Highly 
available it will not  be.

     Second thing to check for is if the vm has guest-agent installed on 
it. If the vm does not have guest-agent installed then it wont be 
restarted on different host. More info on this can be found at  [1].

  [1] https://bugzilla.redhat.com/show_bug.cgi?id=1341106#c35

Thanks

kasturi

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