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From Otis Gospodnetic <otis_gospodne...@yahoo.com>
Subject RE: Opinions: Using Lucene as a thin database
Date Tue, 14 Dec 2004 20:15:05 GMT
You can see Flickr-like tag (lookup) system at my Simpy site (
http://www.simpy.com ).  It uses Lucene as the backend for lookups, but
still uses a RDBMS as the primary storage.

I find it that keeping the RDBMS and Lucene indices is a bit of a pain
and error prone, so _thin_ storage layer with simple requirements will
be okay with just using Lucene, while applications with more complex
domain models will quickly run into limitation (using the wrong tool
for the job type of problem).

Otis

--- Monsur Hossain <monsur@monsur.com> wrote:

> I think this is a great idea, and one that I've been mulling over to
> implement keyword lookups (similar to Flickr.com's tag system).  I
> believe the advantage over a relational database comes from Lucene's
> inverted index, which is highly optimized for this kind of lookup.  
> 
> My concern is that this just shifts the scaling issue to Lucene, and
> I
> haven't found much info on how to scale Lucene vertically.  
> 
> 
> 
> 
> > -----Original Message-----
> > From: Kevin L. Cobb [mailto:kevin.cobb@emergint.com] 
> > Sent: Tuesday, December 14, 2004 9:40 AM
> > To: lucene-user@jakarta.apache.org
> > Subject: Opinions: Using Lucene as a thin database
> > 
> > 
> > I use Lucene as a legitimate search engine which is cool. 
> > But, I am also using it as a simple database too. I build an 
> > index with a couple of keyword fields that allows me to 
> > retrieve values based on exact matches in those fields. This 
> > is all I need to do so it works just fine for my needs. I 
> > also love the speed. The index is small enough that it is 
> > wicked fast. Was wondering if anyone out there was doing the 
> > same of it there are any dissenting opinions on using Lucene 
> > for this purpose. 
> > 
> >  
> > 
> >  
> > 
> >  
> > 
> > 
> 
> 
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> 


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