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From Péter Zentai <>
Subject RE: a question regarding 2.9.2 stability
Date Wed, 08 Dec 2010 13:37:14 GMT

Regarding stability: we use it in a number of high demand production web sites. So far (6month+)
it seems stable as we did not run into any issues, crashes whatsoever - even though we use
the experimental near realtime functionality first appeared in 2.9.x.

Also - performance in some use-cases (which are cardinal for us, like date and integer range
queries) has been even further optimized in 2.9 to a level that is required  in high demand
environments. Just as a quick example: we experimented with and index of 1million docs (each
with 50+ fields) and queries that contained multiple range-queries for integers and dates
and overall had 20+ expressions in it. Executing it produced the first hit in 0.005 sec even
under high load.

I am uncertain however about the future, most importantly bugfixes will ever be done to this
release is just a big questionmark. As am I totally content with the current level of functionality
(even on the log run) + heavily rely on the Java based docs and examples I wont be willing
to replace Lucene.Net with something that is less compatible code/docs wise with the original
java Lucene.


-----Original Message-----
From: Remacle, Yannik [] 
Sent: Wednesday, December 08, 2010 2:09 PM
To: ''
Subject: a question regarding 2.9.2 stability


Back in May, we used Lucene.Net 2.9.2 to test the feasibility of a some internal project.
We were already using Lucene in Java in other projects, but wanted to try the C# port for
integration reasons. It performed very well on a repository of about 8 millions documents;
we didn’t encounter any serious issues. The project went dormant , so we didn’t use it
in our production environment, and we didn’t test it extensively, but it did seem to be
_very_ stable and fast. 

Now, a few months later, when we were about to revive our project, I’m reading all those
threads regarding the future of, which seems, apparently, uncertain.

So, I was wondering, would you guys consider it a wise decision (or not) to use
2.9.2? That is, hoping that 1) Lucene.Net 2.9.2 is stable enough, and 2) Lucene.Net has a


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