Are you warming the searcher first, and then testing the sort performance? (The first query is slow because it populates the FieldCache, internally, which is then reused for subsequent queries as long as you don't close that reader/searcher).

Mike

Chris Salem wrote:

Hello,
I have an index with ~4000000 documents and some 200 fields. Searching without sorting takes around 300 - 500 ms, when sorting on dates (formated as 'yyyy-mm-dd') searching time takes on average 15 seconds. Here's the code that does the search: hits = searcher.search(query, new Sort(new SortField("slast_modified", false)));
and here's how that field is being indexed:
doc.add(new Field("slast_modified", "2008-12-12", Field.Store.NO, Field.Index.NOT_ANALYZED)); Am I doing something wrong? Is there a bug in lucene and if so is there a way to work around it so that search speed is increased to something reasonable?
Thanks
Sincerely,
Chris Salem
Development Team
Main Sequence Technologies, Inc.
PCRecruiter.net - PCRecruiter Support
ch...@mainsequence.net
P: 440.946.5214 ext 5458
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