On Thu, Apr 25, 2013 at 7:04 PM, Tom Limoncelli <t...@whatexit.org> wrote > > The benefit of a message queue system is that the distribution of > messages to all the endpoints is highly optimized. Many of these > systems use multicast for all systems on a particular IP subnet and > other interesting techniques to make distribution fast and efficient. > I don't know enough about the system Salt uses to say much more but > you get the point. The MCollective system that Puppet uses (which I > also don't have direct experience with) also uses a message queue for > distribution. > > I'm pretty new to puppet so correct me if I'm wrong, but my understanding is that it uses MCollective only for the race cases when you need to run a command or trigger an immediate update to the agent. Even then the agent uses the normal collection (HTTPS) method to pull down and run the configuration.
P.S. Thank you for pointing out the idempotence of some Salt operations. I missed that on my first read.
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