IndexSearchers are thread safe, so you can use the same object on multiple requests. If the index is static and not constantly updating, just keep one IndexSearcher for the life of the app. If the index changes and you need that instantly reflected in the results, you need to check if the index has changed, if it has create a new cached IndexSearcher. To check for changes use you'll need to monitor the version number of the index obtained via
IndexReader.getCurrentVersion(Index Name) David -----Original Message----- From: Stefan Groschupf [mailto:[EMAIL PROTECTED] Sent: 18 February 2005 16:15 To: Lucene Users List Subject: Re: Search Performance Try a singleton pattern or an static field. Stefan Michael Celona wrote: >I am creating new IndexSearchers... how do I cache my IndexSearcher... > >Michael > >-----Original Message----- >From: David Townsend [mailto:[EMAIL PROTECTED] >Sent: Friday, February 18, 2005 11:00 AM >To: Lucene Users List >Subject: RE: Search Performance > >Are you creating new IndexSearchers or IndexReaders on each search? Caching >your IndexSearchers has a dramatic effect on speed. > >David Townsend > >-----Original Message----- >From: Michael Celona [mailto:[EMAIL PROTECTED] >Sent: 18 February 2005 15:55 >To: Lucene Users List >Subject: Search Performance > > >What is single handedly the best way to improve search performance? I have >an index in the 2G range stored on the local file system of the searcher. >Under a load test of 5 simultaneous users my average search time is ~4700 >ms. Under a load test of 10 simultaneous users my average search time is >~10000 ms. I have given the JVM 2G of memory and am a using a dual 3GHz >Zeons. Any ideas? > > > >Michael > > >--------------------------------------------------------------------- >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] > > > > --------------------------------------------------------------------- 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]
