As far as I know, If an application crashes in the middle of indexing (using Lucene 2.1.0.3);
-There should be no index corruption, -Depending on the Merge factor(default 10) you can lose some lastly-added docs.(Max 9 for default), -Deletions are ignored(as if no deletions are made) DIGY. -----Original Message----- From: Michael Siu [mailto:[EMAIL PROTECTED] Sent: Thursday, May 08, 2008 3:04 AM To: lucene-net-user@incubator.apache.org Subject: Is Lucene transacted when adding to index? Just some dump questions from a newbie: - Is Lucene tractacted during 'add documents' to index? - What happen when the process crashes in the middle of adding to the index? - Will Lucene auto detect if the index is corrupted (and auto fix it)? Thanks.