Hi Karen,

> I appreciate your consideration. I'm fine with URLs being agnostic as long as 
> they are not completely meaningless. That is, they can function as 
> identifiers in some meaningful context to cross-reference actual locations of 
> real files or real content. Otherwise the archive is just historical shadow, 
> not able to regenerate.

That is indeed the case. The identifiers/urn's are meaningful to the archive, 
meaning you can use them to ask the archive for the "real" deal whenever needed.

> More specifically, I'm trying to understand why the Admin server is sending 
> something non-meaningful to the Engage Server and the Engage Server is 
> treating it as meaningful. The Engage Server is the client in this scenario. 
> The Engage Server is refusing to be completely agnostic about URLs in 
> Matterhorn.
> 
> Using MH 1.4rc2, I'm trying to apply a "publish" workflow to an archive via 
> the Admin UI. The Matterhorn Admin server sends a partially constructed http 
> resource location to the Engage server. The resource location appears to have 
> been constructed from an Episode URN (the Matterhorn databases 
> episode_episode table's mediapackage). The Engage server attempts to parse 
> something meaningful from the location, and cannot. So, it throws an error 
> and freezes the workflow.

That is indeed a problem that needs to be resolved. Christoph yesterday pushed 
a couple of fixed to the archive so that problem may have gone away. Bottom 
line, the Engage service should not know about the archive and only deal with 
distribution artifacts (i. e. tracks and/or catalogs distributed to download 
and streaming servers). The episode service on the other hand should (by 
default) not be archiving these kind of things.

If you find the time to upgrade to 1.4 as of yesterday (please mind the small 
change in database structure), please give it another try and open a ticket 
(assigned to Christoph or myself).

Tobias
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