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From Erik Hatcher <>
Subject Re: IndexSearcher in servlet containers
Date Wed, 05 Oct 2005 13:28:36 GMT
Cache IndexSearcher and only use *one* instance for all requests.   
Application scope works well for this in a servlet environment.


On Oct 5, 2005, at 9:15 AM, Cyril Barlow wrote:

> Has anyone got experience of using the IndexSearcher in a servlet?  
> I'm having caching problems when there's a lot of different  
> concurrent users with the current setup. Currently the setup is to  
> create a IndexSearcher per servlet doPost call and close it after.  
> But with concurrent requests - especially ones which are performing  
> fairly complex ranked boolean queries that take a few seconds are  
> causing caching problems - sometimes a completely different set of  
> results will be returned or nothing at all. Has anyone come across  
> errors like these before or know best practices for searching in  
> concurrent servlets?
> Thanks

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