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From "Thomas Mueller (JIRA)" <j...@apache.org>
Subject [jira] Updated: (JCR-1825) DBDataStore doesn't support concurrent reads
Date Tue, 21 Oct 2008 13:01:47 GMT

     [ https://issues.apache.org/jira/browse/JCR-1825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Thomas Mueller updated JCR-1825:

    Attachment: patch.txt

Here is my first patch. I didn't test it yet; I post it just so that others can have a look
at it.

> DBDataStore doesn't support concurrent reads
> --------------------------------------------
>                 Key: JCR-1825
>                 URL: https://issues.apache.org/jira/browse/JCR-1825
>             Project: Jackrabbit
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: 1.5.0
>            Reporter: Przemo Pakulski
>             Fix For: 1.5.0
>         Attachments: patch.txt
> My understanding is that setting parameter copyWhenReading to true should allow concurrent
reads by spooling binary property to temporary file and free database resources (connection)
immediately to make it available for other threads.
> After applying patch for JCR-1388, DBDataStore doesn't support concurrent reads anymore,
resultSet is kept open and db connection is blocked until the stream is read and closed. When
copyWhenReading is set to true db connection should be released immediately, this is the reason
i guess why temporary file is used.

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