Great - this issue?  https://issues.apache.org/jira/browse/LUCENE-2127

Sounds like it would be a real win for lucene.

-Peter

On Thu, Jan 7, 2010 at 4:12 PM, Otis Gospodnetic
<otis_gospodne...@yahoo.com> wrote:
> Peter - Aaron just commented on a recent Solr issue (reading large result 
> sets) and mentioned his patch.
> So far he has 2 x +1 from Grant and me to stick his patch in JIRA.
>
>  Otis
> --
> Sematext -- http://sematext.com/ -- Solr - Lucene - Nutch
>
>
>
> ----- Original Message ----
>> From: Peter Wolanin <peter.wola...@acquia.com>
>> To: solr-user@lucene.apache.org
>> Sent: Sun, January 3, 2010 3:37:01 PM
>> Subject: Re: SOLR Performance Tuning: Pagination
>>
>> At the NOVA Apache Lucene/Solr Meetup last May, one of the speakers
>> from Near Infinity (Aaron McCurry I think) mentioned that he had a
>> patch for lucene that enabled unlimited depth memory-efficient paging.
>> Is anyone in contact with him?
>>
>> -Peter
>>
>> On Thu, Dec 24, 2009 at 11:27 AM, Grant Ingersoll wrote:
>> >
>> > On Dec 24, 2009, at 11:09 AM, Fuad Efendi wrote:
>> >
>> >> I used pagination for a while till found this...
>> >>
>> >>
>> >> I have filtered query ID:[* TO *] returning 20 millions results (no
>> >> faceting), and pagination always seemed to be fast. However, fast only 
>> >> with
>> >> low values for start=12345. Queries like start=28838540 take 40-60 
>> >> seconds,
>> >> and even cause OutOfMemoryException.
>> >
>> > Yeah, deep pagination in Lucene/Solr can be problematic due to the Priority
>> Queue management.  See http://issues.apache.org/jira/browse/LUCENE-2127 and 
>> the
>> linked discussion on java-dev.
>> >
>> >>
>> >> I use highlight, faceting on nontokenized "Country" field, standard 
>> >> handler.
>> >>
>> >>
>> >> It even seems to be a bug...
>> >>
>> >>
>> >> Fuad Efendi
>> >> +1 416-993-2060
>> >> http://www.linkedin.com/in/liferay
>> >>
>> >> Tokenizer Inc.
>> >> http://www.tokenizer.ca/
>> >> Data Mining, Vertical Search
>> >>
>> >>
>> >>
>> >>
>> >
>> > --------------------------
>> > Grant Ingersoll
>> > http://www.lucidimagination.com/
>> >
>> > Search the Lucene ecosystem using Solr/Lucene:
>> http://www.lucidimagination.com/search
>> >
>> >
>>
>>
>>
>> --
>> Peter M. Wolanin, Ph.D.
>> Momentum Specialist,  Acquia. Inc.
>> peter.wola...@acquia.com
>
>



-- 
Peter M. Wolanin, Ph.D.
Momentum Specialist,  Acquia. Inc.
peter.wola...@acquia.com

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