[Maas-devel] RFC: "Serialising" power actions

[Mark Shuttleworth]

On 17/09/14 16:16, David Britton wrote:
> My biggest concern as a heavy user of maas is that it actually does what
> it thinks it did.  That is, if I tell maas to power it off, it issues
> the power off command and then checks (to the best of its ability) that
> the machine is powered off before sticking it back in the pool (or
> carrying out the next action).
>
>
> This discussion seemes to be going down another route though:
>
> If it's in the pool and I go to the machine in the lab and flip it on
> real quick, I would be surprised that maas shuts it off since it thinks
> it knows best.  If another user acquires it while I'm doing maintence,
> well I'm kind of getting what I deserve there.  This is not the failure
> mode of any of the issues I have hit with MAAS though.  Seems like maybe
> a feature that no one has asked for?
>
>
> IOW: Ensuring actions are carried out is different than ensuring state
> is synchronized at all times.  The first problem is a real bug for maas
> right now that hopefully you all are on top of.  The second seems more
> like very unexepected new territory.
>

+1

Mark
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