Dennis, That's a u...@lucene question.
Update does delete followed by an add. A delete just marks a document as deleted. In other words, it modifies previously created index files. Additions add new files. Once certain thresholds are reached, an add will trigger a segment merge, which will modify previously created index files. Otis ---- Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch Lucene ecosystem search :: http://search-lucene.com/ ----- Original Message ---- > From: Dennis Heretz <[email protected]> > To: [email protected] > Sent: Fri, June 25, 2010 1:41:07 PM > Subject: On update are index files only appended to? > > Hi, I have an index directory that I update daily via a process that > invokes IndexWriter.updateDocument(). The daily update will be mostly adds > but some changes to existing documents. In this scenario, how are the > index files modified? Is it the case that all mods will be either the > creation of new files or straight appends to existing files? Or does the > update modify existing parts of existing files, i.e. sections of the files > that were created the previous day. Thanks! Dennis -- View > this message in context: > href="http://lucene.472066.n3.nabble.com/On-update-are-index-files-only-appended-to-tp922625p922625.html"; > > target=_blank > >http://lucene.472066.n3.nabble.com/On-update-are-index-files-only-appended-to-tp922625p922625.html Sent > from the Lucene - Java Developer mailing list archive at > Nabble.com. --------------------------------------------------------------------- To > unsubscribe, e-mail: > href="mailto:[email protected]";>[email protected] For > additional commands, e-mail: > href="mailto:[email protected]";>[email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
