[one-users] OpenNebula ageing effect?

[Vinícius Vielmo Cogo]

Hi Steffen and Ruben,

Thank you for the feedback, regarding the topics:

What DB are you using ? SQLite or MySQL ?
>
We are using SQLite. I will try some queries directly on DB, but I agree
with you and Ruben that it would be a surprise if they took 140s.

1.- Prolog Times constant means that your are not suffering an storage
> problem
>
I agree, without storage problems, neither network problems (due to tm_ssh
transfer driver).


> 2.- Pending Times increasing. This depends on the number of VMs to
> schedule, and the number of available resources. The default scheduler
> parameters are quite conservative in order not to overload the other
> systems but this can be tunned considering each setup.
>
 Our case has just one physical host which is scheduled to allocate just
one virtual machine.


> There are huge improvements in performance in OpenNebula 2.2 and
> OpenNebula 3.0 in this area.
>
Ok, I will check some newer versions.


> 3.- Increase Boot times depends directly on the hypervisor. This usually
> increases when starting multiple VMs in the same host at the same time.
>
I agree, but this isn't the worst case of time increasing, it's small
compared with the *pend* state.

Cheers,
Vinicius Vielmo Cogo
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