On Fri, 25 Mar 2011 13:44 +0200, "Dmitry Kan" <dmitry....@gmail.com> wrote: > Hi Yonik, > > Oh, this is great. Is distributed faceting available in the trunk? What > is > the basic server setup needed for trying this out, is it cloud with HDFS > and > SOLR with zookepers? > Any chance to see the related documentation? :)
Distributed faceting has been available for a long time, and is available in the 1.4.1 release. The distribution of facet requests across hosts happens in the background. There's no real difference (in query syntax) between a standard facet query and a distributed one. i.e. you don't need SolrCloud nor Zookeeper for it. (they may provide other benefits, but you don't need them for distributed faceting). Upayavira > On Fri, Mar 25, 2011 at 1:35 PM, Yonik Seeley > <yo...@lucidimagination.com>wrote: > > > On Tue, Mar 22, 2011 at 7:51 AM, Dmitry Kan <dmitry....@gmail.com> wrote: > > > Basically, of high interest is checking out the Map-Reduce for > > distributed > > > faceting, is it even possible with the trunk? > > > > Solr already has distributed faceting, and it's much more performant > > than a map-reduce implementation would be. > > > > I've also seen a product use the term "map reduce" incorrectly... as in, > > we "map" the request to each shard, and then "reduce" the results to a > > single list (of course, that's not actually map-reduce at all ;-) > > > > > :) this sounds pretty strange to me as well. It was only my guess, that > if > you have MR as computational model and a cloud beneath it, you could > naturally map facet fields to their counts inside single documents (no > matter, where they are, be it shards or "single" index) and pass them > onto > reducers. > > > > -Yonik > > http://www.lucenerevolution.org -- Lucene/Solr User Conference, May > > 25-26, San Francisco > > > > > > -- > Regards, > > Dmitry Kan > --- Enterprise Search Consultant at Sourcesense UK, Making Sense of Open Source
