: 1) Overview: Currently, we have around 20,000 documents to index with : individual doc size around 5k. We have set up faceting on a multi-valued : field (there will be ~20 facets per document). : 2) Faceted navigation: I've read that faceted navigation on a : multi-valued field has some performance implications. Unfortunately; the : current site requires multi-valued faceting and I cannot break them into : unique fields for faceting. What is the best way to get maximum : performance on a multi-valued field?
short answer: don't worry about it. multi-value field faceting is still very fast, the code just can't take advantage of some optimizations that single valued fields can. Do some tests to make sure your filterCache is big enough enough that you don't get any evictions from a single query doing the faceting you don't wnat, and then don't worryabout it. http://wiki.apache.org/solr/SolrFacetingOverview http://wiki.apache.org/solr/SolrCaching -Hoss
