You have to also use Solr 4.0 :-) ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: [email protected]
> -----Original Message----- > From: Li Li [mailto:[email protected]] > Sent: Monday, November 08, 2010 8:47 AM > To: [email protected]; [email protected] > 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 <[email protected]>: > > 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 <[email protected]> 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. > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: [email protected] For > >> additional commands, e-mail: [email protected] > >> > >> > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [email protected] For > > additional commands, e-mail: [email protected] > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] For additional > commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
