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From Mike Klaas <>
Subject Re: Index partitioning by term
Date Wed, 04 Jul 2007 21:37:43 GMT
On 4-Jul-07, at 5:31 AM, Ndapa Nakashole wrote:

> I am considering using Lucene in my mini Grid-based search engine.  
> I would
> like to partition my index by term as opposed to partition by  
> document. From
> what i have read in the mailing list so far, it seems like  
> partition by term
> is impossible with Lucene. am i right to conclude this! I know Nutch
> partitions by document, by in my environment of very limited  
> bandwidth i
> would like to avoid partition by document.

Partitioning indices by term is an approach whose adoption (as far as  
I am away) is limited to academic projects.  Further, it is much more  
bandwdith intensive than the document partition approach (you have to  
do term-posting list intersections across machines, instead of  
locally).  With doc partitioning, you get the top X docs from each  
server, using almost no bandwidth.


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