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Date: Mon, 10 Jan 2011 09:56:36 -0800 (PST)
From: sol myr <solmyr72@yahoo.com>
Subject: Newbie question: optimized files?
To: java-user@lucene.apache.org
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Hi,=20

I'm new to Lucene (using 3.0.3), and just started to check out the behavior=
 of the 'optimize()' method (which is quite important for our application).
Could it be that 'optimize' cancels out the 'compoundFile' mode? Or am I do=
ing something wrong?=20

Here's my test: I create an indexWriter with compoundFile=3Dtrue, then perf=
orm some writes+commits (which generates several 'cfs' files).
Then I call 'optimize()'... I expected this to yield a single optimized 'cf=
s' file, but instead I get lots of different files - 'fdt', 'fdx', 'fnm' et=
c...

The detailed code:
// Create indexWriter with 'compoundfile=3Dtrue':
Version version=3DVersion.LUCENE_30;
Directory dir =3D FSDirectory.open(new File("c:/luceneTemp"));
Analyzer analyzer =3D new StandardAnalyzer(version);
IndexWriter writer =3D new IndexWriter(
=A0=A0=A0=A0=A0=A0=A0=A0 dir, analyzer, true, IndexWriter.MaxFieldLength.LI=
MITED);
writer.setUseCompoundFile(true);

// Perform some writes + commits.
// This yields several 'cfs' files as expected:
writer.addDocument(...);
writer.commit();
writer.addDocument(...);
=0Awriter.commit();
Thread.sleep(20000);=A0 // give myself time to see the generated 'cfs' file=
s

// Optimize - why does it yield lots of separate files ('fdt', 'fdx', etc)?
writer.optimize();


Thanks.
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