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,
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