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From Otis Gospodnetic <>
Subject Re: kick-start: Lucene to top-level project
Date Fri, 10 Dec 2004 22:37:03 GMT
Yes, it uses the normal Lucene packages as a Jar file.

There are not a lot of places where Nutch uses Lucene in interesting
new ways, but there are some.  Actually, the Nutch case study in Lucene
in Action may reveal some.  For instance, Nutch has a simpler
QueryParser.  It also has a neat way of dealing with common terms and
terms that frequently come together.  But you really ought to browse
the Nutch source for that.


--- Terry Steichen <> wrote:

> Erik/Otis,
> Your answers to the organizational question makes a lot of sense, and
> I therefore, for one, support what you're proposing.
> Regarding Nutch, I gather it uses the standard Lucene library?  I
> keep seeing references on this (or maybe it's the users') list
> suggesting people might find some answers to some of their questions
> by examining the Nutch code.  Might there be some way to formally
> cross-reference relevant code in the part of Nutch that uses Lucene
> in clever/useful ways?
> Regards,
> Terry
>   ----- Original Message ----- 
>   From: Erik Hatcher 
>   To: Lucene Developers List 
>   Sent: Friday, December 10, 2004 3:49 PM
>   Subject: Re: kick-start: Lucene to top-level project
>   On Dec 10, 2004, at 3:27 PM, Terry Steichen wrote:
>   > Forgive me for asking a stupid question, but why?
>   Ah, excellent question that I should have addressed in my first
> message.
>   Bringing Lucene under a top-level project would allow us to
> eventually 
>   bring the other Lucene ports that choose to Apache Software License
>   their code under the same umbrella.  This would allow us to more
> easily 
>   create compatibility test suites to ensure version compatibility
> (or at 
>   least identify incompatibilities clearly).  With the new projects 
>   coming in, we could bring in new committers and partition the 
>   repositories in finer-grained ways.
>   >   Sounds like a fair amount of work is involved.
>   It will be a fair amount of work, mostly administrative.
>   > PS: Heck, just to prove it's probably a dumb question, I still
> don't 
>   > even understand either the technical or organizational
> relationship(s) 
>   > between Lucene and Nutch.
>   Nutch is a full-web crawler built, by Doug, using Lucene indexes
> under 
>   the covers.  Organizationally, Nutch is under a Apache compatible 
>   license.  I don't believe any committers, other than Doug, overlap 
>   though.  We would be bringing in a new set of committers on the
> Nutch 
>   side of things.
>   Erik
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