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From Bruce Ritchie <>
Subject Re: Caching filter wrapper (was Re: RE : DateFilter.Before/After)
Date Tue, 16 Sep 2003 00:10:12 GMT
Doug Cutting wrote:
> FSInputStream.file is shared between all clones of an open file.  Access 
> to it is synchronized.  This works correctly.  Cloned input streams are 
> already used extensively.
>> The solution I think is to recreate the FSInputStream.file object 
>> whenever a FSInputStream is cloned. I've attached what I think is a 
>> fix for the issue below.
> This would cause lots more file handles to be opened, and would also 
> fail once a file has been deleted.  On UNIX, an open file handle may be 
> used after it is deleted, and Lucene leverages this so that updates can 
> occur while an index is still being searched.  I don't think there's a 
> bug here to be fixed.

You're correct of course. Note to self: Don't reports bugs at the end of the day ;)


Bruce Ritchie

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