Try to open with very large value (MAX_INT) it will load only first term, and look up the rest from disk.
On Fri, Nov 27, 2009 at 12:24, Michael McCandless <luc...@mikemccandless.com> wrote: > If you are absolutely certain you won't be doing any lookups by term. > > The only use case I know of is internal, when Lucene's SegmentMerger > is merging the segment with other segments. In this case, the merger > does a linear iteration of all terms, and never a lookup by term, so > we save CPU/RAM by not loading the terms index. > > Mike > > On Fri, Nov 27, 2009 at 5:16 AM, Ganesh <emailg...@yahoo.co.in> wrote: >> Thanks, >> >> May i know the purpose of using negative value? >> >> Regards >> Ganesh >> >> ----- Original Message ----- >> From: "Michael McCandless" <luc...@mikemccandless.com> >> To: <java-user@lucene.apache.org> >> Sent: Friday, November 27, 2009 3:17 PM >> Subject: Re: IndexDivisor >> >> >>> This is the expected behavior. >>> >>> If you intend to use the reader for searching, looking doc freq, >>> deleting docs, etc, you must pass a non-negative value for >>> indexDivisor. >>> >>> Mike >>> >>> On Fri, Nov 27, 2009 at 12:00 AM, Ganesh <emailg...@yahoo.co.in> wrote: >>>> Hello all, >>>> >>>> I am using Lucene v2.9.1, If I open my reader with positive value for >>>> termInfosIndexDivisor then the search works fine. If i set to -1, then >>>> search throws exception "terms index was not loaded when this reader was >>>> created". Is this the intend behaviour? >>>> >>>> I thought by setting this value to -1, No memory will be used and the >>>> terms will be fetched from the disk. Search might be slow but with very >>>> less memory consumption. >>>> >>>> Regards >>>> Ganesh >>>> Send instant messages to your online friends http://in.messenger.yahoo.com >>>> >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >>>> For additional commands, e-mail: java-user-h...@lucene.apache.org >>>> >>>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >>> For additional commands, e-mail: java-user-h...@lucene.apache.org >>> >> Send instant messages to your online friends http://in.messenger.yahoo.com >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
