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From "Uwe Schindler" <...@thetaphi.de>
Subject RE: lucene 4.0 release date
Date Mon, 08 Nov 2010 07:50:08 GMT
You have to also use Solr 4.0 :-)

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de


> -----Original Message-----
> From: Li Li [mailto:fancyerii@gmail.com]
> Sent: Monday, November 08, 2010 8:47 AM
> To: dev@lucene.apache.org; simon.willnauer@gmail.com
> Subject: Re: lucene 4.0 release date
> 
>     thank you.
>     so if I want to use new compress/decompress algorithm, I must use
lucene
> 4.0 in svn? Is there any patch for old release such as 2.9?because I need
solr 1.4
> which based on lucene 2.9
> 
> 2010/11/8 Simon Willnauer <simon.willnauer@googlemail.com>:
> > Li Li,
> >
> > there is no official / unofficial release date for lucene 4.0 if you
> > want to use the latest and greatest features you need to checkout
> > trunk of use a nightly build. My guess would be that there is at least
> > 6 to 8 month to the next release but I can be wrong (more likely it
> > might take even longer) .
> >
> > For PFoR etc you should look into:
> > https://issues.apache.org/jira/browse/LUCENE-1410
> > https://issues.apache.org/jira/browse/LUCENE-2723
> >
> > to get started - and read mikes blog
> > http://chbits.blogspot.com/2010/08/lucene-performance-with-pfordelta-c
> > odec.html
> >
> > There is also S9
> > https://issues.apache.org/jira/browse/LUCENE-2189
> > and GroupVInt impls
> > https://issues.apache.org/jira/browse/LUCENE-2735
> >
> > simon
> >
> > On Mon, Nov 8, 2010 at 4:59 AM, Li Li <fancyerii@gmail.com> wrote:
> >> hi all,
> >>    When will lucene 4.0 be released?
> >>    I want to replace VInt compression with fast ones such as
> >> PForDelta. In my application, decompressing a docList of 10M will use
> >> about 300ms. In  "Performance of Compressed Inverted List Caching in
> >> Search Engines. With J. Zhang and X.Long. 17th International World
> >> Wide Web Conference (WWW), April 2008." , the author says PForDelta
> >> is much faster than VInt. And I also found a java implementation in
> >> http://code.google.com/p/integer-array-compress-kit/ it's speed is
> >> 500 (M int / sec). But to achieve, I have to modify index file
> >> format. And I found
> >> http://wiki.apache.org/lucene-java/FlexibleIndexing  in lucene 4.0,
> >> it will support fore flexible index format. I want to know when it
> >> will be released so as to decide whether wait it or doing it myself.
Thank
> you.
> >>
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> >>
> >>
> >
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> >
> >
> 
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