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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-1453) When reopen returns a new IndexReader, both IndexReaders may now control the lifecycle of the underlying Directory which is managed by reference counting
Date Sun, 07 Jun 2009 22:32:07 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-1453?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uwe Schindler updated LUCENE-1453:
----------------------------------

    Attachment: Failing-testcase-LUCENE-1453.patch

Attached is the patch, that replaces all occurences of FSDir.openDirectory() by open(). The
test "TestIndexReaderReopen" fails almost every time with an AlreadyClosedException.

> When reopen returns a new IndexReader, both IndexReaders may now control the lifecycle
of the underlying Directory which is managed by reference counting
> ---------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-1453
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1453
>             Project: Lucene - Java
>          Issue Type: Bug
>    Affects Versions: 2.4
>            Reporter: Mark Miller
>            Assignee: Michael McCandless
>            Priority: Minor
>             Fix For: 2.4.1, 2.9
>
>         Attachments: Failing-testcase-LUCENE-1453.patch, LUCENE-1453.patch, LUCENE-1453.patch,
LUCENE-1453.patch
>
>
> Rough summary. Basically, FSDirectory tracks references to FSDirectory and when IndexReader.reopen
shares a Directory with a created IndexReader and closeDirectory is true, FSDirectory's ref
management will see two decrements for one increment. You can end up getting an AlreadyClosed
exception on the Directory when the IndexReader is open.
> I have a test I'll put up. A solution seems fairly straightforward (at least in what
needs to be accomplished).

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