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From "Mattmann, Chris A (388J)" <chris.a.mattm...@jpl.nasa.gov>
Subject Re: Graduated projects please tidy up: abdera aries buildr chemistry esme oodt river shiro thrift uima
Date Thu, 03 Mar 2011 04:37:13 GMT
On Mar 2, 2011, at 8:56 PM, David Crossley wrote:

> Mattmann, Chris A (388J) wrote:
>> Hmmm,
>> 
>> I'd like to question this: why would the Incubator ever delete archives of releases?
We have active links on the TLP for e.g., OODT and for e.g., Tika that point users to our
Incubator releases that are still active Incubator links. I realize that archive.apache.org
keeps a copy, but following your logic, why would any TLP maintain its own dist area? It could
just point to the archives? 
> 
> We are not deleting any archives.

You're right, you're suggesting that it's good that we  delete the original copy, the one
that release announcements link to via email and the ones that folks may have permlinked as
bookmarks, and the one that our own mail archives link to?

> 
> Keeping the dist area tidy with only current releases
> means that this huge ASF-wide content is mirrored efficiently.

At what cost? In my mind, there is a subtle point lost here. 

Archiving is good and it has to do with mirroring. What i'm advocating for is preservation.
We should never delete the original copy dists for *any project*. It creates disconnects between
the world-wide mirroring system that is called email, and locally caching things, and archiving
and cataloging links.

The cost of invalidating those negates a ton of the savings that you're proposing. 

> 
> Also, we don't mirror archive.a.o via that dist system. 

Gotcha.

> 
> I just had a look at Tika download page. It does as i suggested
> earlier: They link to 
> archive.apache.org/dist/tika/
> for old releases
> and to
> archive.apache.org/dist/incubator/tika/
> for the older incubator releases.

Yeah I think we updated that. I couldn't remember if we actually directly linked to incubator.a.o.
I think I might have even updated that when I noticed the links were broke on the site.

Regardless, we should haven't to update it it. I'm proposing that's *it's a good thing* to
have an original + 1 copy from a reliability and software preservation perspective.

Cheers,
Chris

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Chris Mattmann, Ph.D.
Senior Computer Scientist
NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA
Office: 171-266B, Mailstop: 171-246
Email: chris.a.mattmann@nasa.gov
WWW:   http://sunset.usc.edu/~mattmann/
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Adjunct Assistant Professor, Computer Science Department
University of Southern California, Los Angeles, CA 90089 USA
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


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