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From Renata Vaccaro <>
Subject IndexWriter.commit() performance
Date Tue, 04 Jun 2013 22:50:47 GMT
Hi all,


I'm new to this list and hoping I'm asking this question in the correct
place.  I upgraded lucene from a very, very old version to version
4.2.1.  I'm finding that calling IndexWriter.commit() is much slower
than the previous IndexWriter.close() that I was calling with the old
lucene (that didn't have a commit call).  It's taking 500ms-1s where
previously the close call was taking about 50ms.  I call commit every
time I add a document.  I am creating the IndexWriter as follows:


Directory dir =;

      Analyzer analyzer = new MsStandardAnalyzer();

      IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_42,



IndexWriter writer = new IndexWriter(dir, iwc);


Is there something that I can do to make the commit call faster?

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