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Date: Thu, 3 May 2007 12:29:15 -0700 (PDT)
From: "Karl Wettin (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-874) Automatic reopen of
 IndexSearcher/IndexReader
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    [ https://issues.apache.org/jira/browse/LUCENE-874?page=3Dcom.atlassian=
.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12493470 ]=20

Karl Wettin commented on LUCENE-874:
------------------------------------

LUCENE-550 contains NotifiableIndex that by decoration keeps track of whats=
 going on in a index. It comes with AutofreshedReader and AutofreshedSearch=
er, active hit collection cache et c. Perhaps that works for you? Java 1.5

> Automatic reopen of IndexSearcher/IndexReader
> ---------------------------------------------
>
>                 Key: LUCENE-874
>                 URL: https://issues.apache.org/jira/browse/LUCENE-874
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>            Reporter: Jo=C3=A3o 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 m=
ultiple 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 Index=
Searcher, plus detection of a modified index, plus safely closing and reope=
ning the IndexSearcher) or this could be behind the scenes by the IndexSear=
cher class.

--=20
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