[Puppet Users] Puppet Scalability - any good references

matan
Tue, 22 May 2012 19:09:26 -0000

Hi,

Could anyone point out a good existing discussion of Puppet scalability?
I''m relating to the Puppet master and ecosystem parts that are not the
actual agents sitting on the managed servers.

In particular anything that would shed insight upon:

   1. Does a Puppet master gracefully degrade when overwhelmed?
   Or does stuff start failing, instead of just performing more slowly.
   2. How does changing the Puppet polling interval (runinterval etc.) factor
   in?

   Does Puppet make it safe to increase workload and polling frequency
   knowing that at worst there''ll be slowness, or does it leave it to
the
   operator''s gut and trial and error figuring how much load is fine,
   requiring of them to throttle workloads and hold their breaths when rolling
   out changes. Can workload be cancelled in case of excessive loads same as
   handling parallel FTP jobs, or this approach is not a design tenet at
   present?
   I''m assuming the answers in this area are not 0 nor 1''s, so
a balanced
   discussion of how close are things to 0 or to 1 is of interest.

Thanks,
matan

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