Issue #4243 has been updated by Markus Roberts.

Status changed from Needs more information to Accepted
Assigned to changed from Brice Figureau to Markus Roberts
Priority changed from Normal to High

As I worked through my reasoning again I saw that you are correct.  This is a 
race condition and should be observable even under MRI's green threads.  
Another #4211 instance.

I think the simplest fix for the present would be to have the import method in 
parser support use the type collection rather than its loader to do the deed, 
but this may require a bit of fudging to pass the name of the current file in 
(presumably for error reporting).

I'll play with it.

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Bug #4243: Multithread issue with manual manifest import
http://projects.puppetlabs.com/issues/4243

Author: Brice Figureau
Status: Accepted
Priority: High
Assigned to: Markus Roberts
Category: compiler
Target version: 2.6.0
Affected version: 2.6.0rc3
Keywords: 
Branch: 


This might be a dup of #4211.

Manually importing a manifest with the "import" function ends up calling 
Puppet::Parser::TypeLoader.import which is not thread-safe (ie it tests and 
sets @imported[file] and parse non atomically).


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