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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2737) Change documentation on permissions needed to include read/write for system property derby.storage.jvmInstanceId
Date Thu, 14 Jun 2007 18:50:26 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12504873
] 

Kathey Marsden commented on DERBY-2737:
---------------------------------------

Just a small change:

"This property is used by Derby to prevent the accidental boot of the database by two class
loaders. If the database
is booted by two class loaders, database corruption can occur. This permission requirement
is new in Version 10.3.
If write permission for this property is not granted, a message is printed to the log file
which indicates that the Derby database
is not protected from dual boot and possible corruption. " 

> Change documentation on permissions needed to include read/write for  system property
derby.storage.jvmInstanceId 
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-2737
>                 URL: https://issues.apache.org/jira/browse/DERBY-2737
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Documentation
>    Affects Versions: 10.3.0.0
>            Reporter: Kathey Marsden
>            Assignee: Laura Stewart
>            Priority: Minor
>             Fix For: 10.3.0.0
>
>
> Dual embedded boot of a database from different classloaders may cause corruption.  In
order to prevent this, Derby requires read/write access to the System Property 
> derby.storage.jvmInstanceId.  The following permission needs to be granted in the policy
file whether or not custom classloaders are being used
> permission java.util.PropertyPermission "derby.storage.jvmInstanceId", "read, write";

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