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From João Fonseca (JIRA) <>
Subject [jira] Created: (LUCENE-874) Automatic reopen of IndexSearcher/IndexReader
Date Thu, 03 May 2007 17:12:15 GMT
Automatic reopen of IndexSearcher/IndexReader

                 Key: LUCENE-874
             Project: Lucene - Java
          Issue Type: Improvement
          Components: Search
            Reporter: João Fonseca
            Priority: Minor

To improve performance, a single instance of IndexSearcher should be used. However, if the
index is updated, it's hard to close/reopen it, because multiple threads may be accessing
it at the same time.

Lucene should include an out-of-the-box solution to this problem. Either a new class should
be implemented to manage this behaviour (singleton IndexSearcher, plus detection of a modified
index, plus safely closing and reopening the IndexSearcher) or this could be behind the scenes
by the IndexSearcher class.

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