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From "Rob Tucker" <>
Subject RE: .NET 2.0 with Lucene.NET
Date Wed, 26 Apr 2006 13:47:22 GMT
That's a relief! :-)


I wasn't really looking for specific answers to my efficiency issues at
this point, TBH I think we have a good idea about how to start to
improve it in the future.  I'm sure I'll be getting back to you!


Thanks for your time, it's much appreciated.  





From: George Aroush [] 
Sent: 26 April 2006 14:42
To: Rob Tucker;
Subject: RE: .NET 2.0 with Lucene.NET


Hi Rob,


Lucene.Net 1.4.3 is .NET 1.1 compliant.


Not knowing how you are updating the index, I can't help you to answer
your question why it's taking a long time to add and remove documents.
If you can provide some code sample, even pseudo-code, I or someone else
on this board may have some answers.


Others have ported their own copy of Lucene.Net to work under .NET 2.0.
Maybe they are reading this and will share their experience.  But,
Lucene.Net 2.0 will be .NET 2.0 compliant -- that's my plan.


As for information, only recently have I got the time to move Lucene.Net
to ASF.  I will be updating the incubation site for Lucene.Net to
provided timelines when I expect to do things.  At the main time, like I
said in the past, Lucene.Net needs volunteers -- I can't do it all on my
own in a timely fashion.  If you got cycles and can help, please let me
know.  This request goes to all Lucene.Net users.  In addition,
Lucene.Net needs committers.  To become one, read:




-- George Aroush




From: Rob Tucker [] 
Sent: Wednesday, April 26, 2006 9:16 AM
To: George Aroush;
Subject: RE: .NET 2.0 with Lucene.NET

Thanks for the quick response George,


I was assuming that 1.4 was .NET 1.1 compliant, is this not the case?
Generally, I've struggled to find information about Lucene.NET support
for .NET.  Is there somewhere where I can find it?


We're using Lucene.NET for a slightly unusual searching implementation
where it's holding information about highly structured documents in an
environment where there is the potential for a fairly high degree of
volatility in document contents and lifetimes.  The main issues we've
found with regard to efficiency is in adding and removing large number
of documents can take a long time, merging and optimising the index is
the particular challenge.  I've really got a general concern that
switching to .NET2.0 might affect this efficiency and robustness for any
number of reasons, say in changing the implementation of data
structures, file access classes or plain bugs in the framework!  From
experience, I don't tend to believe the MS marketing hype, I've always
hit upgrade problems when change OS version, runtimes etc, I don't
expect .NET 2.0 to be any different.


In general, we've got great results with Lucene.NET, I'm really looking
for an initial feel for what to expect with the move to 2.0.  Is there
information anywhere about the required changes that you've mentioned?


To be honest, I've struggled to find much information about Lucene.NET
on the ASF site, is this the main page?: If so, the WIKI
seems to be down. 




Rob Tucker.



From: George Aroush [] 
Sent: 26 April 2006 13:42
To: Rob Tucker
Subject: RE: .NET 2.0 with Lucene.NET


Hi Rob,


With few changes, you can get Lucene.Net to run on .NET 2.0 -- others
have done it.  as you may know, I am finishing off 1.9 which will be
.NET 1.1 compliant.  After which, I will be releasing Lucene.Net 2.0
which will be .NET 2.0 compliant.


Sorry, I don't have numbers to show you if Lucene.Net is faster or more
stable under .NET 2.0.  But I am curious, what are your concerns of
Lucene.Net 1.4.3 in regards to robustness and efficiency?




-- George


PS: Please subscribe to Lucene.Net mailing list at ASF and post
questions like those there for the whole community to pitch in on.



From: Rob Tucker [] 
Sent: Wednesday, April 26, 2006 6:32 AM
To: George Aroush
Subject: .NET 2.0 with Lucene.NET



Do you have any information about how Lucene.Net runs with .NET2.0?  We
have a .NET 1.1 project that we'd like to upgrade and would like to get
some initial confidence about how Lucene.NET will run.  We're using 1.4
at the moment.  I'm concerned with both robustness and efficiency.




Rob Tucker

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