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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 Tue, 09 Jun 2009 21:37:07 GMT

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

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

    Attachment: LUCENE-1453.patch

Here is an updated patch:
- Factored out the FilterIndexReader
- Rewrite doClose() in both readers to record the first exception, but still try to close
cleanup everything.
- Some more code cleanup, CHANGES.txt

It is ready to commit. Mike will you do this, or should I assign myself to this issue?

> 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-with-FSDir-open.patch,
LUCENE-1453.patch, 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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