[one-users] why does scheduler need to order the actions pending in scheduler queue?

[Carlos Martín Sánchez]

Hi,

That code is not in the one-3.8 branch, it is part of the new scheduled
actions feature [1].

Executing the scheduled actions in a FIFO order can lead to unexpected
behaviours, since the actions are ordered by time. See [2] for an example.

Regards

[1] http://dev.opennebula.org/issues/1483
[2] http://dev.opennebula.org/issues/1811

--
Carlos Martín, MSc
Project Engineer
OpenNebula - The Open-source Solution for Data Center Virtualization
www.OpenNebula.org | cmartin at opennebula.org |
@OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>


On Tue, Mar 19, 2013 at 10:13 AM, cmcc.dylan <dx10years at 126.com> wrote:

>     Hi everyone!
>     I read source codes of  opennebula-3.8.3  and find that scheduler has
> to order the scheduler quque in every TIMER_ACTION by do_scheduled_actions
> function. I have a doubt  why scheduler should order them because  the
> actions added in scheduler quque are already FIFO.
>     which scenarios can break the FIFO rule?
>
>
>
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> Users at lists.opennebula.org
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>
>
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