2010/11/1 Koji Sekiguchi <k...@r.email.ne.jp>: > With solr example, using facet.field=text creates UnInvertedField > for the text field in fieldValueCache. After that, I saw stats page > and I was surprised at counters in *filterCache* were up:
> Do they cause of big words in UnInvertedField? Yes. "big" terms (defined as matching more than 5% of the index) are not uninverted since it's more efficient (both CPU and memory) to use the filterCache and calculate intersections. > If so, when using both facet for multiValued field and facet for > single valued field/facet query, it is difficult to estimate > the size of filterCache. Yep. At least fieldValueCache (for UnInvertedField) tells you the number of big terms in each field you are faceting on though. -Yonik http://www.lucidimagination.com
