Jeff, These questions are difficult to answer, because the answer depends on a number of factors, such as: - hardware (memory, disk speed, number of disks...) - index complexity and size (number of fields and their size) - number of queries/second - complexity of queries etc.
I would try putting everything in a single index first, and split it up only if I see performance issues. Going from 1 index to N indices is not a lot of work (not a lot of Lucene-related code). If searching 1 big index is too slow, split your index, put each index on a separate disk, and use ParallelMultiSearcher (http://jakarta.apache.org/lucene/docs/api/org/apache/lucene/search/ParallelMultiSearcher.html) to search your indices. Otis --- Jeff Munson <[EMAIL PROTECTED]> wrote: > I am a new user of Lucene. I am looking to index over 20 million > documents (and a lot more someday) and am looking for ideas on the > best > indexing/search strategy. > > Which will optimize the Lucene search, one index or multiple indexes? > Do I create multiple indexes and merge them all together? Or do I > create multiple indexes and search on the multiple indexes? > > Any helpful ideas would be appreciated! > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
