Andreas Knecht wrote: > We're considering to use the new IndexWriter.deleteDocuments call rather > than the IndexReader.delete call. Are there any performance > improvements that this may provide, other than the benefit of not having > to switch between readers/writers? > > We've looked at LUCENE-565, but there's no clear view of performance > enhancements over the old IndexReader call.
I think Yonik's comment in 565 holds here - http://issues.apache.org/jira/browse/LUCENE-565#action_12432155 - if your application is buffering deletes/updates and then batch the deletes you probably won't see a large improvement. But if your application does not buffer the deletes and does not batch them, then I believe moving to IndexWriter.delete() (and update()) should buy you performance improvement, because IndexWriter would now buffer the deletes for you. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
