Whether it caches frequently used terms ?
On 9/18/07, Karl Wettin <[EMAIL PROTECTED]> wrote: > > > 18 sep 2007 kl. 07.12 skrev Shailendra Mudgal: > > > > > What my goal is to understand the caching strategy. How well this > > work for repetitive queries. Is there any room available to improve > > this. > > It is usually a loss of resources to cache results in a busy system > with gaussianity distributed queries. There is a paragraph on the > wiki <http://wiki.apache.org/lucene-java/LuceneCaveats> that explains > this: Lucene is amazingly fast at searching. Rather than caching hits > and paging through them, merely re-executing the query is often fast > enough. > > I have conducted experiements with active results cache at index > update time, soft/weak references and some other things I can't think > of right now. Most of the time it ended up with the garbage collector > going crazy with zillions of tiny soft/weak referenced instances, > clock ticks spent updating results people don't that much, et c. You > really need a lot of repetative queries in order for such a cache to > do any good. > > If you are retrieving a lot of stored fields it might make sense to > cache documents that are frequently accessed. > > > -- > karl > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
