Have you looked at the File based ValueSource in Solr? It can be loaded per commit and is designed to hold precomputed scores that are then factored in via Function queries.
On Apr 26, 2010, at 3:00 PM, MitchK wrote: > > Hello community, > > during several thoughts about how to make scoring in Solr better, a lot of > times I wished that I can use precomputed data to influence score. However, > this data could change whenever there occurs a commit. That's why I can't > work with preprocessing while indexing the documents. I hope to solve this > problem with the help of a function Query that stores computed metadata in a > cache, if it isn't already computed. > > I will call the whole thing functionQuery - but, if you say this should be > implemented as part of a request handler after reading it, please tell me > so. :) > > My idea (and now I hope you can share some of your experiences): > I will implement a method that instantiates a SolrJ-client to send some > queries to the index. The responsed data is important to compute the needed > metadata for my functionQuery. > Once the metadata is computed, I want to store it in a SolrCache. > > - Here is my first question: I can't find any code-snippet that shows how to > deal with SolrCache - do you know some classes that implement caches which > get renewed after updating (and commiting) the index? > > - Is it possible to create this cache while Solr is starting? If not, I > would think of a cronJob or something like that to warmUp the cache when > Solr starts the first time. > > There is one problem when considering that I want to make the whole thing > reusable: If I want to use a SolrJ-client to send some queries, I want to > specify them in the solrconfig.xml instead of hardcoding them. > That's the pro for a request handler, I think - but I haven't got much > experiences with Solr's architecture. > > Hopefully I will find some time at the weekend to have a try in implementing > this functionality in Solr. > > Thank you in advance for every suggestion, reference, idea and thought. > > Kind regards > - Mitch > -- > View this message in context: > http://lucene.472066.n3.nabble.com/RequestHandler-function-Query-with-Cache-implementation-tp757610p757610.html > Sent from the Solr - Dev mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > -------------------------- Grant Ingersoll http://www.lucidimagination.com/ Search the Lucene ecosystem using Solr/Lucene: http://www.lucidimagination.com/search --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
