On Mon, Nov 29, 2010 at 9:21 AM, Thomas Mueller <[email protected]> wrote: > Hi, > > Jackrabbit currently uses Lucene. According to the Lucene FAQ it should be > possible, but I'm not sure what changes (if any) would be required in > Jackrabbit:
Most likely only a database based LuceneDirectory would have to be created. Although the FAQ states that it is possible, I don't think it can ever perform. Once again, I believe in storing segments as a whole in a database to have a persisted lucene index, but, you cannot efficiently access these segments in a database. You then need to keep the index in memory. > > http://wiki.apache.org/lucene-java/LuceneFAQ#Can_I_store_the_Lucene_index_in_a_relational_database.3F > > I'm not aware of plans to support this feature. Patches are welcome of course > :-) First of all, we would have to do some housekeeping in the existing implementation. The entire 'multi-index' setup, meant for 'near real time searches' is unneeded anymore against newer lucene versions. Also the way properties are indexed should be replaced. Note that these changes will most likely already affect about 100 of the 200 query classes (where quite a lot can be removed as well). So, this is lots of work. After this, preferably, we can move to the 4.x Lucene versions. So, a patch is welcome, but don't think to light about it :) Regards Ard > > Regards, > Thomas > > From: Atul Kumar Tripathi > <[email protected]<mailto:[email protected]>> > Reply-To: "[email protected]<mailto:[email protected]>" > <[email protected]<mailto:[email protected]>> > Date: Mon, 29 Nov 2010 05:06:31 +0000 > To: "[email protected]<mailto:[email protected]>" > <[email protected]<mailto:[email protected]>> > Subject: Functionality to store indexes in database with jackrabbit 2.1.2 or > upcoming releases......... > > > Hi Guys, > > Is this possible to store indexes in database using jackrabbit 2.1.2? > > Are there any plans to provide functionality to store indexes in database > with upcoming Jackrabbit Releases? > > Thanks in advance. > > Thanks & Regards. > Atul Tripathi > Senior Engineer | Datacert/Technology. > Virtusa India Pvt. Ltd. > Chennai ATC > Phone: +91 44 66127000 Ext: 3742 | Mobile: +91 9940483180 > [cid:[email protected]]<http://www.virtusa.com/> > [cid:[email protected]] <http://www.virtusa.com/blog/> > [cid:[email protected]] <https://twitter.com/VirtusaCorp> > [cid:[email protected]] > <http://www.linkedin.com/companies/virtusa> > [cid:[email protected]] <http://www.facebook.com/VirtusaCorp> > [cid:[email protected]] > <http://www.youtube.com/virtusacorporation> > [cid:[email protected]] <http://www.flickr.com/photos/virtusa> > > > Virtusa was recently ranked and featured in 2010 Deloitte Technology Fast > 500, 2010 Global Services 100, IAOP's 2010 Global Outsourcing 100 sub-list > and 2010 FinTech 100 among others. > > --------------------------------------------------------------------------------------------- > > This message, including any attachments, contains confidential information > intended for a specific individual and purpose, and is intended for the > addressee only. Any unauthorized disclosure, use, dissemination, copying, or > distribution of this message or any of its attachments or the information > contained in this e-mail, or the taking of any action based on it, is > strictly prohibited. If you are not the intended recipient, please notify the > sender immediately by return e-mail and delete this message. > > --------------------------------------------------------------------------------------------- > > -- Hippo Europe • Amsterdam Oosteinde 11 • 1017 WT Amsterdam • +31 (0)20 522 4466 USA • San Francisco 185 H Street Suite B • Petaluma CA 94952-5100 • +1 (707) 773 4646 Canada • Montréal 5369 Boulevard St-Laurent • Montréal QC H2T 1S5 • +1 (514) 316 8966 www.onehippo.com • www.onehippo.org • [email protected]
