lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Tatu Saloranta <>
Subject Re: Multiuser environments
Date Tue, 15 Jul 2003 02:17:42 GMT
On Monday 14 July 2003 08:52, Guilherme Barile wrote:
> Hi
>     I'm writing a web application which will index files using
> textmining to extract text and lucene to store it. I do have the
> following implementation questions:
> 1) Only one user can write to an index at each time. How are you people
> dealing with this ? Maybe some kind of connection pooling ?

Two obvious candidates are locking bottleneck methods and doing index
writing in a critical section, or having a background thread that does
reindexing, and other threads add requests to a queue. In CMS I'm working we 
are doing the latter (so as not to block actual request threads which could
happen with first approach, adding/deleting documents is done as 
post-processing when documents are created/edited/deleted).

In either case you usually have a singleton instance that represents the 
search engine functionality (assuming single index), and from there on it's 
reasonably easy to reuse IndexReader as necessary.

-+ Tatu +-

To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message