Hi Baris, > what if the user needs to limit the search process?
What do you mean by 'limit'? > there should be a way to speedup lucene then if this is not possible, > since for some simple queries it takes half a second which is too long. What do you mean by 'simple' query? there might be multiple reasons behind slowness of a query that are unrelated to the search (for example, if you retrieve many documents and for each document you are extracting the content of many fields) - would you like to tell us a bit more about your use case? Regards, Diego From: java-user@lucene.apache.org At: 06/09/21 18:18:01To: java-user@lucene.apache.org Cc: baris.ka...@oracle.com Subject: Re: Potential bug Thanks Adrien, but the differences is too far apart. I think the algorithm needs to be revised. what if the user needs to limit the search process? that leaves no control. there should be a way to speedup lucene then if this is not possible, since for some simple queries it takes half a second which is too long. Best regards On 6/9/21 1:13 PM, Adrien Grand wrote: > Hi Baris, > > totalhitsThreshold is actually a minimum threshold, not a maximum threshold. > > The problem is that Lucene cannot directly identify the top matching > documents for a given query. The strategy it adopts is to start collecting > hits naively in doc ID order and to progressively raise the bar about the > minimum score that is required for a hit to be competitive in order to skip > non-competitive documents. So it's expected that Lucene still collects 100s > or 1000s of hits, even though the collector is configured to only compute > the top 10 hits. > > On Wed, Jun 9, 2021 at 7:07 PM <baris.ka...@oracle.com> wrote: > >> Hi,- >> >> i think this is a potential bug >> >> >> i set this time totalHitsThreshold to 10 and i get totalhits reported as >> 1655 but i get 10 results in total. >> >> I think this suggests that there might be a bug with >> TopScoreDocCollector algorithm. >> >> >> Best regards >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
