One word: Idempotence.

If you have to do what you are asking, ur doin' it wrong.

On Mon, Oct 11, 2010 at 2:09 PM, Philip Brown
<phil.googlen...@bolthole.com>wrote:

> I've been poking around the web docs, and dont see an answer to this
> yet:
>
> Is there any pre-existing functionality in puppet, to allow limiting
> parallelism?
>
> Example:
> Lets say that I want all machines to run some sort of job, that
> updates a central database with information about the state of each
> puppet client.
>
> Lets also say, that I have 1000 machines, so if all of them decide to
> do it at the exact same time, it would be a Bad Thing.
> So I ideally would like some kind of puppet mechanism that says,
> "run this script... but only if there are less than 10 other machines
> doing the same thing at this particular moment)"
>
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