Request for feedback: how slow is your slowest MAAS cloud?

Mike Pontillo mike.pontillo at canonical.com
Fri Jun 2 17:11:22 UTC 2017


On Fri, Jun 2, 2017 at 1:09 AM, John A Meinel <john.meinel at canonical.com>
wrote:

> Note also that I do have a stake here, as this is what we do for Juju. Its
> perfectly fine to wait 1s for a user-initiated login to get a response. But
> when you have 1000 agents that are restarting at the same time because you
> bounced the controller machine, it takes a *long* time for them all to get
> reconnected if you're spinning CPU cycles in a 1M iterated SHA hash loop.
> And it seems far more efficient to get 1M more time spent in brute force
> attacks by adding 20 bits (~5 more hex digits), to the key.
>

Sorry, I think I misinterpreted your concern.

This calculation would only apply the first time a MAAS region or rack
controllers starts up, and possibly (one day) when a MAAS node is
commissioned. It would not ever impact a restarting Juju agent.

Regards,
Mike
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