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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2008/07/01 14:31:45 UTC

[jira] Created: (LUCENE-1323) MultiReader should make a private copy of the subReaders array

MultiReader should make a private copy of the subReaders array
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                 Key: LUCENE-1323
                 URL: https://issues.apache.org/jira/browse/LUCENE-1323
             Project: Lucene - Java
          Issue Type: Bug
          Components: Index
    Affects Versions: 2.3.1, 2.3, 2.2, 2.1, 2.0.0, 1.9, 2.3.2, 2.4, 2.9, 3.0
            Reporter: Michael McCandless
            Assignee: Michael McCandless
            Priority: Trivial
             Fix For: 2.4


Spinoff from here:

    http://mail-archives.apache.org/mod_mbox/lucene-java-user/200806.mbox/%3C88F3F6A4-FBFB-43DF-890D-DB5F0D9A2461@gmail.com%3E

Because MultiReader just holds a reference to the array that was passed in, it's possible to hit scary exceptions (that look like index corruption) if that array is later altered eg by reopening some of the readers.

The fix is trivial: just make a private copy.

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[jira] Resolved: (LUCENE-1323) MultiReader should make a private copy of the subReaders array

Posted by "Michael McCandless (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/LUCENE-1323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless resolved LUCENE-1323.
----------------------------------------

    Resolution: Fixed

Thanks Sascha!

> MultiReader should make a private copy of the subReaders array
> --------------------------------------------------------------
>
>                 Key: LUCENE-1323
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1323
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>    Affects Versions: 1.9, 2.0.0, 2.1, 2.2, 2.3, 2.3.1, 2.3.2, 2.4, 2.9, 3.0
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>            Priority: Trivial
>             Fix For: 2.4
>
>
> Spinoff from here:
>     http://mail-archives.apache.org/mod_mbox/lucene-java-user/200806.mbox/%3C88F3F6A4-FBFB-43DF-890D-DB5F0D9A2461@gmail.com%3E
> Because MultiReader just holds a reference to the array that was passed in, it's possible to hit scary exceptions (that look like index corruption) if that array is later altered eg by reopening some of the readers.
> The fix is trivial: just make a private copy.

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