I've tried to use it with read-only mode and it looks like it's even worse right now.
I must admit that we're abusing the indexing a bit by commiting after each document addition, but still when there's no reader open, each document is indexed in about 30-50ms and when there's a read-only reader open then each document is indexed in about 150-500ms. Why should an open reader affect the commit process so deeply? I wonder if no one encountered this phenomena before. On Sat, Nov 14, 2009 at 8:27 PM, Matt Honeycutt <mbhoneyc...@gmail.com>wrote: > 2.4 does indeed support read-only mode. I don't know how much it will > help, but I would definitely try it. > > On 11/14/09, Eran Sevi <erans...@gmail.com> wrote: > > I'm still using version 2.4 so I think there's still no read only mode. > > Is there no other way to prevent this slow down in previous versions? > > > > Eran. > > > > On Thu, Nov 12, 2009 at 8:16 PM, Michael Garski > > <mgar...@myspace-inc.com>wrote: > > > >> Eran, > >> > >> What version of Lucene are you using? Are you opening the IndexReader > >> in read-only mode? > >> > >> Michael > >> > >> -----Original Message----- > >> From: Eran Sevi [mailto:erans...@gmail.com] > >> Sent: Thursday, November 12, 2009 9:06 AM > >> To: lucene-net-user@incubator.apache.org > >> Subject: IndexWriter is slow when reader is open > >> > >> Hi, > >> I'm using Lucene.Net 2.4 and I just noticed that when I index documents > >> while there's at least one IndexReader open on that index (even without > >> doing anything), the indexing speed is slower by a factor of 3 to 5. > >> When > >> closing the reader, the indexing speed goes back to normal. > >> I'm not doing any deletes, only adds. > >> > >> My index is going to be updated regularly and there's going to be a > >> reader/searcher in use almost all the time so this might be a big > >> problem > >> for me. > >> > >> Does anyone have a clue if this is normal behavior? why does it happen > >> and > >> how can I avoid such a big loss in performance? > >> > >> > >> Thanks, > >> Eran. > >> > >> > > >
