To make the distance filter faster you should use LatLonPoint. And, if you really just need the N nearest points, you could try LatLonPoint.nearest(...) ... that might be faster than filtering + sorting separately.
Mike McCandless http://blog.mikemccandless.com On Thu, Jun 29, 2017 at 12:06 PM, sc <scattaman...@4info.com> wrote: > Hi, > > I have similar requirement of searching points within a radius of 50m. > Loaded 100M latlon, indexed/searching with LatLonDocValuesField. Currently, > I am testing it on my macbook pro. > > I have tested with all Directory(RAM/FS/MMap) types, but it takes > 3-4 > secs to do search/sort to return of 5 points with in radius of 50m. > > I am looking to reduce search/sort time < 10ms. I have allocated 4g of RAM > for the java process which is more than sufficient. > > Code: Indexing > > doc.add(new LatLonDocValuesField("loc", latitude, > longitude)); > > > > Searching: > searcher = new IndexSearcher(indexReader); > Sort sortField = new > Sort(LatLonDocValuesField.newDistanceSort("loc", minLat, minLng)); > Query latlonQuery = > LatLonDocValuesField.newDistanceQuery("loc", minLat, minLng, 50); > > TopDocs docs = searcher.search(latlonQuery, 5, sortField); > > > Any suggestions greatly appreciated. > > Thanks, > > > > -- > View this message in context: http://lucene.472066.n3. > nabble.com/Lucene-GeoNear-Search-and-Sort-Performance-tp4343468.html > Sent from the Lucene - Java Users mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > >
