Issue #2536 has been updated by Christian Hofstaedtler.

Nigel Kersten wrote:
> This would entirely break everyone using round robin DNS to load balance 
> individual operations.
> 
> Can you not configure your local cache node-side to achieve this?

Local cache would imply running a local DNS caching resolver, as, on Linux, 
nscd is mostly broken and especially unreliable for hostname lookups. Running a 
full blown DNS resolver on each node is a bit of overkill ;)

At least for catalog operations, there was discussion that round robin DNS 
ain't any good anyway, as there are >1 requests needed to compile a catalog, so 
a node has to target the same puppetmaster for each run. If this has changed in 
the meantime, yay!
----------------------------------------
Feature #2536: Cache Puppet server IP
https://projects.puppetlabs.com/issues/2536

Author: Christian Hofstaedtler
Status: Closed
Priority: Normal
Assignee: 
Category: network
Target version: 
Affected Puppet version: 
Keywords: 
Branch: 


Seems like currently the IP associated with the puppet server name is not 
cached on the client, but gets queried again from DNS all the time during a 
client run.
Ideally, I think, the client should resolve the name when starting a run, and 
cache the IP until the run is complete.

As I've only noticed on our production systems, I'm setting targeting this 
report against 0.24.5. Maybe this is already fixed in newer versions, but I 
didn't find a ticket for it.


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