Thanks for the heads up. I'm using Lucene 1.4.2.
I tried to do optimize() again but it has no effect. Adding a just tiny dummy document would get rid of it.
I'm doing optimize every few hundred documents because I tried to simulate incremental update. This lead to another question I would post separately.
Thanks.
Another possibility is that you are using an older version of Lucene, which was known to have a bug with similar symptoms. Get the latest version of Lucene.
You shouldn't really have multiple .cfs files after optimizing your index. Also, optimize only at the end, if you care about indexing speed.
Otis
--- Paul Elschot <[EMAIL PROTECTED]> wrote:
On Tuesday 21 December 2004 05:49, aurora wrote: > I'm testing the rebuilding of the index. I add several hundred documents, > optimize and add another few hundred and so on. Right now I have around > 7000 files. I observed after the index gets to certain size. Everytime > after optimize, the are two files roughly the same size like below: > > 12/20/2004 01:57p 13 deletable > 12/20/2004 01:57p 29 segments > 12/20/2004 01:53p 14,460,367 _5qf.cfs > 12/20/2004 01:57p 15,069,013 _5zr.cfs > > The index total index is double of what I expect. This is not always > reproducible. (I'm constantly tuning my program and the set of document). > Sometime I get a decent single document after optimize. What was happening?
Lucene tried to delete the older version (_5cf.cfs above), but got an error back from the file system. After that it has put the name of that segment in the deletable file, so it can try later to delete that segment.
This is known behaviour on FAT file systems. These randomly take some time for themselves to finish closing a file after it has been correctly closed by a program.
Regards, Paul Elschot
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