If you are not already doing so, share a single IndexSearcher instance among searcher threads. DIGY
-----Original Message----- From: Li Bing [mailto:lbl...@gmail.com] Sent: Wednesday, December 16, 2009 7:40 PM To: Digy Cc: lucene-net-user@incubator.apache.org Subject: Re: What About the Performance When Retrieving at Indexing? Dear Didy, My solution is as follows. 1) Only one thread can index (write); 2) Multiple threads can retrieve (read). Now the retrieval performance is fine. Do you think my solution is correct? Any better solutions? Best, LB On Thu, Dec 17, 2009 at 1:36 AM, Digy <digyd...@gmail.com> wrote: > I remember that this was discussed in thread "Exceptions When Indexing with > Multi-threading" Oct 2009 > DIGY > > -----Original Message----- > From: Li Bing [mailto:lbl...@gmail.com] > Sent: Wednesday, December 16, 2009 11:46 AM > To: lucene-net-user@incubator.apache.org > Subject: What About the Performance When Retrieving at Indexing? > > Dear all, > > I just want to know what about the performance when retrieving while > new data is being indexed if I do not manage the threads myself. It > must be lower than retrieving an index which is not being updated, > right? In my case, the retrieving can be processed after the indexing > is done. It is really slow. Does Lucene solve the issue itself? > > Thanks again! > LB > > ---------- Forwarded message ---------- > From: Li Bing <lbl...@gmail.com> > Date: Wed, Dec 16, 2009 at 5:26 PM > Subject: How To Append and Synchronize Lucene Index? > To: lucene-net-user@incubator.apache.org > > > Hi, all, > > I am using Lucene.NET to index data. Meanwhile, more new data is > frequently added to the index. However, if so, the retrieval > performance becomes much lower when new data is being added and > indexed because the indexing (writing) thread must synchronize the > retrieving (reading) threads. > > I use .NET locks to manage the threads myself. Is it necessary? Or > Lucene can handle the synchronize itself? > > I would like to know if it is possible for me to append one portion of > Lucene indexes to another one. If so, it is easy to replicate Lucene > indexes and the writing and reading do not affect each other. Or any > other solutions in this case? > > Thanks so much! > LB > >
