Check out the HashDocSet from Solr, this is the best way to cache small
sets of search results. In general, the Solr BitSet/DocSet classes are
more efficient than using the standard java.util.BitSet. You can use
these independent of the rest of Solr (though I recommend checking out
Solr if you want to do complex caching).
- Thom
John Patterson wrote:
Hi,
I am thinking about caching search results for common queries and just want
to check that for small numbers of results it would be better to store the
doc number as ints or shorts than to store a Filter with a BitSet. I guess
if you results contain less than 1/32 or 1/16 of the number of documents
then it would take less memory.
Is there anything else to consider?
Thanks,
John
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