lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Steven Rowe <>
Subject Re: Speed of grouped queries
Date Wed, 03 Jan 2007 18:37:21 GMT
Hi Scott,

sdeck wrote:
> I guess, any ideas why I would run out of heap memory by combining all of
> those boolean queries together and then running the query? What is happening
> in the background that would make that occur? Is it storing something in
> memory, like all of the common terms or something, to cause that to occur?

Doug Cutting gives a formula for Lucene memory usage for queries here
(from 2001):


And some more info here about the term dictionary (from 2003):


You might want to look at this thread, which has some discussion about
omitting norms and the term dictionary (from 2005):


To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message