Hi Lei, The mailing list doesn't allow attachments. Can you share these via a file sharing platform?
On Mon, Mar 9, 2015 at 12:48 AM, lei <simpl...@gmail.com> wrote: > The Solr instance is single-shard. Index size is around 20G and total doc > # is about 12 million. Below are the histograms for the three facet fields > in my query. Thanks. > > > On Thu, Mar 5, 2015 at 11:57 PM, Toke Eskildsen <t...@statsbiblioteket.dk> > wrote: > >> On Thu, 2015-03-05 at 21:14 +0100, lei wrote: >> >> You present a very interesting observation. I have not noticed what you >> describe, but on the other hand we have not done comparative speed >> tests. >> >> > q=*:*&fq=country:"US"&fq=category:112 >> >> First observation: Your query is '*:*, which is a "magic" query. Non-DV >> faceting has optimizations both for this query (although that ought to >> be disabled due to the fq) and for the "inverse" case where there are >> more hits than non-hits. Perhaps you could test with a handful of >> queries, which has different result sizes? >> >> > &facet=on&facet.sort=index&facet.mincount=1&facet.limit=2000 >> >> The combination of index order and a high limit might be an explanation: >> When resolving the Strings of the facet result, non-DV will perform >> ordinal-lookup, which is fast when done in monotonic rising order >> (sort=index) and if the values are close (limit=2000). I do not know if >> DV benefits the same way. >> >> On the other hand, your limit seems to apply only to material, so it >> could be that the real number of unique values is low and you just set >> the limit to 2000 to be sure you get everything? >> >> > &facet.field=manufacturer&facet.field=seller&facet.field=material >> > >> &f.manufacturer.facet.mincount=1&f.manufacturer.facet.sort=count&f.manufacturer.facet.limit=100 >> > >> &f.seller.facet.mincount=1&f.seller.facet.sort=count&f.seller.facet.limit=100 >> > &f.material.facet.mincount=1&sort=score+desc >> >> How large is your index in bytes, how many documents does it contain and >> is it single-shard or cloud? Could you paste the loglines containing >> "UnInverted field", which describes the number of unique values and size >> of your facet fields? >> >> - Toke Eskildsen, State and University Library, Denmark >> >> -- Anshum Gupta
