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From "Shai Erera (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-4972) DirectoryTaxonomyWriter makes a commit even if no changes were made
Date Wed, 01 May 2013 19:00:15 GMT
Shai Erera created LUCENE-4972:
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             Summary: DirectoryTaxonomyWriter makes a commit even if no changes were made
                 Key: LUCENE-4972
                 URL: https://issues.apache.org/jira/browse/LUCENE-4972
             Project: Lucene - Core
          Issue Type: Bug
          Components: modules/facet
            Reporter: Shai Erera
            Assignee: Shai Erera
            Priority: Minor
             Fix For: 5.0, 4.4


Now that IndexWriter allows committing changes even if the only change is setCommitData, DirectoryTaxonomyWriter
creates empty commits because whenever you call commit/close, it sets as commitData the indexEpoch,
thereby creating unnecessary commit points.

I think that DirTaxoWriter should track if the index is dirty ... or preferably get that from
IndexWriter (i.e. getChangeCount or something). I'll create a test case exposing the bug and
then fix DTW.

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