Mailing List Archive

Deepa,

You probably want to ask on java-user@lucene.... list.
Lucene reads in the whole .tii index file (see the Lucene for explanations of various Lucene index files).
It doesn't read in *all* the index files, as those could be quite big.
You *can* read in your index in a RAMDirectory via FSDirectory, though, and it sounds like that is what you are after.

Otis
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----- Original Message ----
From: Deepa Paranjpe <deepap@yahoo-inc.com>
To: general@lucene.apache.org
Sent: Wednesday, February 14, 2007 2:32:53 PM
Subject: Lucene indexes in memory

Hi all,

I want to understand how lucene searches its index -- does it load the whole
index into memory at once? Is there any way to make sure that it does so.

I want to optimize maximally on the search time required by lucene on over
~7M short documents. The queries that I deal are 6 to 7 tokens on an
average.

Your help on this will be appreciated.

-Deepa