Im my case I need to know the number os unique number os visitors and number of visits in a period of time.
I need to render the data in a table with pagination. To know the number of unique elements to calculate the total os pages the only way I found was return facets=-1. /yago — /Yago Riveiro On Thu, Jan 23, 2014 at 1:39 AM, Erick Erickson <erickerick...@gmail.com> wrote: > A legitimate question that only you can answer is > "what's the value of faceting on fields with so many unique values?" > Consider the ridiculous case of faceting on <uniqueKey>. There's > almost exactly zero value in faceting on it, since all counts will be 1. > By analogy, with millions of tag values, will there ever be more than a very > small count of for any facet? And will showing those be useful to the > user? > They may be, and Yago has a use-case where the answer is "yes". Before > trying to make Solr perform in this insance, though, I'd review the use-case > to see if it makes sense.... > Erick > On Wed, Jan 22, 2014 at 5:09 PM, Yago Riveiro <yago.rive...@gmail.com> wrote: >> You will need to use DocValues if you want to use facets with this amount of >> terms and not blow the heap. >> >> I have facets with ~39M of unique terms, the response time is about 10 ~ 40 >> seconds, in my case is not a problem. >> >> -- >> Yago Riveiro >> Sent with Sparrow (http://www.sparrowmailapp.com/?sig) >> >> >> On Wednesday, January 22, 2014 at 10:59 PM, Bing Hua wrote: >> >>> Hi, >>> >>> I am going to evaluate some Lucene/Solr capabilities on handling faceted >>> queries, in particular, with a single facet field that contains large number >>> (say up to 1 million) of distinct values. Does anyone have some experience >>> on how lucene performs in this scenario? >>> >>> e.g. >>> Doc1 has tags A B C D .... >>> Doc2 has tags B C D E .... >>> etc etc millions of docs and there can be millions of distinct tag values. >>> >>> Thanks >>> >>> >>> >>> -- >>> View this message in context: >>> http://lucene.472066.n3.nabble.com/Solr-Lucene-Faceted-Search-Too-Many-Unique-Values-tp4112860.html >>> Sent from the Solr - User mailing list archive at Nabble.com >>> (http://Nabble.com). >>> >>> >> >>
