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From Grant Ingersoll <>
Subject Re: Distributed vs Merged Searching
Date Wed, 01 Feb 2006 13:44:27 GMT
You might find helpful.  It discusses 
some issues with parallel distributed searches and may be helpful.

How many documents are you expecting to index?  And how many unique 
terms do you expect?

Chun Wei Ho wrote:
> I am deploying a web application serving searches on a Lucene index,
> and am deciding between distributing search between several machines
> or single searching, and was hoping that someone could tell me from
> their experiences:
> + Is there anything particular to watch out for if using distributed
> searching instead of  searching one merged Lucene index?
> + What should be the size of the index that I am looking at before I
> need to (or should be) turn to distributed searching to reduce
> response/search time? I know it would depend a lot on hardware and request
> frequency but I was wondering if anyone could post their hardware
> info and index size as a reference of when/if they had to use
> distributed search due to load issues.
> Thanks :)
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Grant Ingersoll 
Sr. Software Engineer 
Center for Natural Language Processing 
Syracuse University 
School of Information Studies 
335 Hinds Hall 
Syracuse, NY 13244 
Voice:  315-443-5484 
Fax: 315-443-6886 

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