Issue #12173 has been updated by Charlie Sharpsteen.

Redmine Issue [#12173](http://projects.puppetlabs.com/issues/12173) has been 
migrated to JIRA:

  <https://tickets.puppetlabs.com/browse/PUP-731>


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Bug #12173: Masters cannot reliably distinguish between multiple versions of a 
type/function/plugin used in different environments
https://projects.puppetlabs.com/issues/12173#change-101402

* Author: Nigel Kersten
* Status: Accepted
* Priority: Normal
* Assignee: eric sorenson
* Category: environments
* Target version: 3.x
* Affected Puppet version: 2.7.0
* Keywords: telly_deprecation BD customer
* Branch: 
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Quoted from a previous ticket, #4409

The key problem is that a master can’t reliably distinguish between two 
versions of the same native type that are used in different environments (or 
between an environment which uses a native type and an environment which 
doesn’t). This is due to the fact that native types are defined using ruby 
code, which the master loads into Ruby classes via “require”. Since there can 
only be one Ruby class with a given name at a time, this prevents the master 
from being able to have two different versions of the same type in two 
different environments. This makes life difficult for people who are trying to 
use a “test” environment to try out a new version of a native type on a limited 
set of nodes before deploying it to all nodes.

A secondary problem is that the location where the master looks for the 
definition of native types is not the same as the location of plug-in files 
that the master distributes to agents. This leads to confusion even for people 
who are not using a “test” environment, because it means that they have to put 
their type definitions in two places, one where they can be picked up by the 
master and one where they can be sent as plug-ins to agents.


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