Issue #16698 has been updated by Andrew  Parker.

Here is what happened:

 * In order to fix #3910 and make the master, and therefore the ENC, always be 
authoritative the caching of the node needed to be removed
 * Commit 
<https://github.com/puppetlabs/puppet/commit/5a79d9abd96e73ff166527cdee69a30da8ab0f87>
 removed the master's hard coding of the YAML cache
 * Removing the YAML cache caused the long-dormant code at 
<https://github.com/puppetlabs/puppet/blob/5a52dd679caefc7f8648dfb4f06f6f25fd69ae9d/lib/puppet/defaults.rb#L1468>
 to take control since it was no longer overridden by the master application
 * The node `cache_terminus` being set to `:store_configs` meant that it 
started reading the `host` table for the node.
 * The `host` table in store configs doesn't seem to actually contain most of 
the data that is part of the node object. Therefore the node for store configs 
was empty
 * In an ENC setup you normally wouldn't have `node` declarations and so 
nothing will happen for the node.

Removing the `store_configs.rb` and no longer setting that in the `defaults.rb` 
hook seems to solve the problem.
----------------------------------------
Bug #16698: external node classifier script is not being called when 
storedconfigs is on
https://projects.puppetlabs.com/issues/16698#change-73116

Author: Chris Mague
Status: Investigating
Priority: Normal
Assignee: Andrew  Parker
Category: 
Target version: 3.0.1
Affected Puppet version: 3.0.0
Keywords: 
Branch: 


    $ ruby -v
    ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux]

    $ puppet --version
    3.0.0 (installed via gem)

#puppet.conf

    [master]
    node_terminus  = exec
    external_nodes = /usr/share/puppet-dashboard/bin/external_node
    
in puppet-3.0.0/lib/puppet/indirector.rb added the following lines:

    38 Puppet.warning "DTM: making sure in indirector #{ 
Puppet[:external_nodes] } is called"
    39 Puppet.warning "DTM: making sure in indirector #{ Puppet[:node_terminus] 
} trying termnius is called"
    
These show up in the puppet logs that the values are correctly established

    Oct  2 18:50:19 puppet puppet-master[16541]: DTM: making sure in indirector 
/usr/share/puppet-dashboard/bin/external_node is called
    Oct  2 18:50:19 puppet puppet-master[16541]: DTM: making sure in indirector 
exec trying termnius is called
    
in puppet-3.0.0/lib/puppet/indirector/node/exec.rb

   12     Puppet.warning "DTM: making sure #{ Puppet[:external_nodes] } is 
called"

That message is not showing up in the logs and the external node classifier 
script is not getting called.



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