I'm more interested in reopen(IndexCommit) so I could have full benefits of LUCENE-1483 (faster open, warm caches, less GC and so on) but on specific commit point.
I'm not sure it's possible in current trunk, and if we have open(IndexCommit) & company, maybe we should also have similar set of methods for reopen? On Mon, Mar 2, 2009 at 12:12, Michael McCandless <luc...@mikemccandless.com> wrote: > > This is already available, as of 2.4. > > Mike > > Danil ŢORIN wrote: > >> What about opening IndexReader/Searcher on certain commit point? >> Will it be implemented in 2.9? >> >> The use-case is similar to the one Michael Busch described, only I >> would like to open (or reopen) a searcher on specific commit point. >> >> >> On Fri, Feb 27, 2009 at 20:31, Michael McCandless >> <luc...@mikemccandless.com> wrote: >>> >>> Michael Busch wrote: >>> >>>> Actually I personally don't need Lucene to be "write once". The reason >>>> why >>>> I started this thread about the segments.gen file was that in our >>>> project we >>>> sometimes need to rollback to a previous commit-point (using Lucene >>>> 2.4.0) >>>> that we keep around with the SnapshotDeletionPolicy. To get rid of the >>>> newest commit-point we simply delete the most recent segments file. But >>>> then >>>> we also have to delete the segments.gen file, otherwise Lucene will read >>>> the >>>> generation from it and try to find the segments file we deleted. Then >>>> Lucene >>>> will recreate the segments.gen file. This just made me think that this >>>> is >>>> not very clean (deleting and recreating the segments.gen) especially >>>> because >>>> we use a local FS and don't even need the .gen file. >>> >>> Ahh... OK. In trunk/2.9, you can explicitly open an IndexWriter on a >>> prior >>> commit point, which will take care of the gen file for you. >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-dev-h...@lucene.apache.org >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-dev-h...@lucene.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org For additional commands, e-mail: java-dev-h...@lucene.apache.org
