Mark, I don't understand this: > so with a ton of docs and a few uniques, you get a temp boost in the RAM > reqs until it sizes it down.
Sizes down??? Why is it called Cache indeed? And how SOLR uses it if it is not cache? And this: > A pointer for each doc. Why can't we use (int) DocumentID? For me, it is natural; 64-bit pointer to an object in RAM is not natural (in Lucene world)... So, is it [maxdoc]x[4-bytes], or [maxdoc]x[8-bytes]?... -Fuad