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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-393) Allow multiple JVMs to have read-only access to the same directory-based database
Date Thu, 07 May 2009 20:44:45 GMT

    [ https://issues.apache.org/jira/browse/DERBY-393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12707093#action_12707093
] 

Kathey Marsden commented on DERBY-393:
--------------------------------------

There is a *very* old patch for this issue. Is this something we should look at?


> Allow multiple JVMs to have read-only access to the same directory-based database
> ---------------------------------------------------------------------------------
>
>                 Key: DERBY-393
>                 URL: https://issues.apache.org/jira/browse/DERBY-393
>             Project: Derby
>          Issue Type: New Feature
>          Components: Store
>            Reporter: Trejkaz
>         Attachments: readonly.patch
>
>
> For an application I'm building, we needed to permit multiple JVMs to access the same
database.
> We couldn't easily use a network server configuration, as it would be difficult to figure
out who to connect to since either user might want to view the database while the other database
is offline.
> We couldn't just dump all the data in a JAR file, as our databases often end up being
several gigabytes in size.
> So what we really need is a version of the directory store which is treated as if it
were read-only.

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