Nutch? Solr? Red-piranha?

[Michael Levy <mi...@michaelrlevy.com>]

I'm looking for advice on selecting a search application.  I'm 
responsible for developing a new search platform for use in a historical 
research organization and museum.  I've pretty much decided on Lucene as 
the library for custom servlet apps that would use the Lucene API directly.

At the same time, we have a number of application ideas that could 
probably use a flexible/customizable off-the-shelf crawling 
application.  For starters, it would be pretty basic stuff like indexing 
PDF files using some library, returning links that have been translated 
to point to a Tomcat virtual directory containing the files.  But our 
apps could quickly get more complex as we think of new search ideas.

I'm having a hard time comparing and contrasting Nutch, Solr, and 
Red-piranha.  I would appreciate anyone offering your ideas or 
experiences about which of these (or any other comprehensive search 
solutions) are good for which types of applications.  TIA!



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Re: Nutch? Solr? Red-piranha?

[Eivind Hasle Amundsen <ei...@ifi.uio.no>]

> I don't have any experience with Red-piranha.

I'm wondering if the Red-Piranha project is still going strong. The 
so-called "community edition" seems to be lacking development according 
to the CVS repository:

http://cvs.sourceforge.net/viewcvs.py/red-piranha/CVSROOT/

(The last commits seem to be ~8 months old.)

Does anyone know about this?

-- 
Eivind Hasle Amundsen | eivinha@ifi.uio.no

Student, Department of Informatics, University of Oslo
mob: +47 90789762 | web: http://www.eha.no/

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Re: Nutch? Solr? Red-piranha?

[Yonik Seeley <ys...@gmail.com>]

On 3/28/06, Michael Levy <mi...@michaelrlevy.com> wrote:
> I'm looking for advice on selecting a search application.  I'm
> responsible for developing a new search platform for use in a historical
> research organization and museum.  I've pretty much decided on Lucene as
> the library for custom servlet apps that would use the Lucene API directly.
>
> At the same time, we have a number of application ideas that could
> probably use a flexible/customizable off-the-shelf crawling
> application.  For starters, it would be pretty basic stuff like indexing
> PDF files using some library, returning links that have been translated
> to point to a Tomcat virtual directory containing the files.  But our
> apps could quickly get more complex as we think of new search ideas.
>
> I'm having a hard time comparing and contrasting Nutch, Solr, and
> Red-piranha.  I would appreciate anyone offering your ideas or
> experiences about which of these (or any other comprehensive search
> solutions) are good for which types of applications.  TIA!

I'd use Solr for highly structured data (documents with multiple
fields) and very configurable text analysis per-field. Think of it
more like a database, but designed for full-text search. We are
working on adding easy faceted browsing and indexing of SQL databases.

I'd use Nutch for web-search (a free google replacement): crawling
(discovering), indexing web pages, and automatically handling
different types of human readable documents like HTML, PDF, etc.

I don't have any experience with Red-piranha.

Example use cases as I see it:
To index a music web site with lots of articles: Nutch
To index a music collection (structured data like title, album,
author, year, genre, etc): Solr

-Yonik
http://incubator.apache.org/solr Solr, The Open Source Lucene Search Server

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