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From "Stu Hood" <>
Subject Re: Lucene performance issues..
Date Sun, 27 Jul 2008 22:19:16 GMT
Also, keep in mind that optimization is a very disk intense process (and therefore slow). It
completely rewrites the index, and should only be done when you are not expecting the index
to change for a while.

-----Original Message-----
From: "Daniel Naber" <>
Sent: Sunday, July 27, 2008 4:59pm
Subject: Re: Lucene performance issues..

On Sonntag, 27. Juli 2008, Mazhar Lateef wrote:

> We have also tried upgrading the lucene version to 2.3 in hope to
> improve performance but the results were quite the opposite. but from my
> research on the internet the Lucene version 2.3 is much faster and
> better so why are we seeing such inconsistency.

Have you checked out these pages?

Even a large index should be fast, assuming the queries are not 
complicated. Also, with a large index the performance depends on the 
number of matches, i.e. searching for very common terms might be slow. 
Maybe you could post more information about your queries.



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