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From Otis Gospodnetic <>
Subject Re: Using Lucene to index OSM nodes (400M latitude/longitude points)
Date Wed, 24 Jun 2009 04:16:56 GMT

Hi Kelly,

I think you want to look at LocalLucene (or LocalSolr).  I haven't played with Local*, so
I can't provide more than this tip.  Actually, I can also suggest to dump Plucene - it's a
dead project, and even when it was alive it was quite slow.  If you really need to be able
to search from a Perl application, your best bet may be using a Perl Solr client.

Sematext -- -- Lucene - Solr - Nutch

----- Original Message ----
> From: Kelly Jones <>
> To:
> Sent: Tuesday, June 23, 2009 11:52:48 PM
> Subject: Using Lucene to index OSM nodes (400M latitude/longitude points)
> Can Lucene index the (OSM) node db (400M
> latitude/longitude pairs), and then find the 20 nodes closest to a
> given latitude/longitude?
> More specifically:
> % Can Lucene index numerical data and understand that 16 is close to
> 15, but far away from 160000?
> % Is Lucene reasonably fast indexing 400M floating point pairs?
> % After Lucene creates the 400M index, can it return search results
> reasonably fast?
> % Is there a guide/tutorial that shows how to use Lucene to index
> numerical data (I'm using Plucene, but I'll settle for any sort of
> guide)?
> I tried to index OSM data w/ SQLite3, but it took forever.
> I realize I could use MySQL/PostgreSQL, but I'm looking for an
> embedded/serverless solution.
> -- 
> We're just a Bunch Of Regular Guys, a collective group that's trying
> to understand and assimilate technology. We feel that resistance to
> new ideas and technology is unwise and ultimately futile.

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