Thanks Yonik. In my case, there is only one "title" field per document so is there a way to force Solr to work the old way? My analyser doesn't break up the "title" field into multiple tokens. It only tries to format the field value (to lower case, remove unwanted chars and words). Therefore, it's no difference from using "string" single-valued type.
I'll try your first recommendation to see how it goes. Thanks again. On 7/17/07, Yonik Seeley <[EMAIL PROTECTED]> wrote:
Since you went from a non multi-valued "string" type (which Solr knows has at most one value per document) to a custom analyzer type (which could produce multiple tokens per document), Solr switched tactics from using the FieldCache for faceting to using the filterCache. Right now, you could try to 1) use facet.enum.cache.minDf=1000 (don't use the fieldCache except for large facets) 2) expand the size of the fieldcache to 1000000 if you have the memory Optimizing your index should also speed up faceting (but that is a lot of facets). -Yonik On 7/16/07, climbingrose <[EMAIL PROTECTED]> wrote: > Hi all, > > My facet browsing performance has been decent on my system until I add my > custom Analyser. Initially, I facetted "title" field which is of default > string type (no analysers, tokenisers...) and got quick responses (first > query is just under 1s, subsequent queries are < 0.1s). I created a custom > analyser which is not much different from the DefaultAnalyzer in FieldType > class. Essentially, this analyzer will not do any tokonisations, but only > convert the value into lower case, remove spaces, unwanted chars and words. > After I applied the analyser to "title" field, facet performance degraded > considerably. Every query is now > 1.2s and the filterCache hit ratio is > extremely small: > > lookups : 918485 > > hits : 23 > > hitratio : 0.00 > > inserts : 918487 > > evictions : 917971 > > size : 512 > > cumulative_lookups : 918485 > > cumulative_hits : 23 > > cumulative_hitratio : 0.00 > > cumulative_inserts : 918487 > > cumulative_evictions : 917971
-- Regards, Cuong Hoang
