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From Andy Goodell <>
Subject Re: Problems with Lucene + BDB (Berkeley DB) integration
Date Tue, 21 Sep 2004 01:13:46 GMT
I used BDB + lucene successfully using the lucene 1.3 distribution,
but it broke in my application with the 1.4 distribution.  The 1.4
dist uses a different file system by default, the "cluster file
system", so maybe that is the source of the issues.

good luck,
andy g

On Mon, 20 Sep 2004 19:36:51 -0300, Christian Rodriguez
<> wrote:
> Hi everyone,
> I am trying to use the Lucene + BDB integration from the sandbox
> (
> I installed C Berkeley DB 4.2.52 and I have the Lucene jar file.
> I have an example program that indexes 4 small text files in a
> directory (its very similar to the in the Lucene demo,
> except that it uses BDB + Lucene). The problem I have is that
> executing the indexing program generates different results each time I
> run it. For example: If I start with an empty index, run the indexing
> program and then query the index I get the correct results; then I
> delete the index to start from scratch again, and perform the same
> sequence and I get no results. (?)
> What puzzles me is the non-deterministic results... the same execution
> sequence generates two different results. I then wrote a program to
> dump the index and I found out that the list of files that end up in
> the index is different every time I index those 4 files.
> For example:
> 1st run: contents of directory: _4.f2, _4.f3, _4.cfs, _4.fdx, _4.fnm,
> _4.frq, _4.prx, _4.tii, segments, deletable. (9 files)
> 2nd run: contents of directory: 0:_4.f1, _4.cfs, _4.fdt, _4.fdx,
> _4.fnm, _4.frq, _4.prx, _4.tii, _4.tis, segments, deletable. (11
> files)
> Does anyone have any idea why this is happening?
> Has anyone been able to use the BDB + Lucene integration with no problems?
> Id appreciate any help or pointers.
> Thanks!
> Xtian
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