Hi,
in general you cannot cache Filter, you can cache their DocIdSets
(CachingWrapperFilter is for example doing this). Lucene Queries are executed
per segment, that means when you index new documents or update new documents,
lucene creates new index segments. Older ones *never* change, so a Do
Hi Erick,
I have mentioned everything that is relevant, I believe :).
However, just to give more background: Assume documents of the order of more
than 300 million, and multiple concurrent users running search. I may front
Lucene with ElasticSearch, and ES basically calls Lucene TermFilters. My
bq: Unless, I can cache these filters in memory, the cost of constructing
this filter at run time per query is not practical
Why do you say that? Do you have evidence? Because lots and lots of Solr
installations do exactly this and they run fine.
So I suspect there's something you're not telling
