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https://issues.apache.org/jira/browse/QPID-2040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aidan Skinner resolved QPID-2040.
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Resolution: Fixed
> failed update to the PlainPasswordFilePrincipalDatabase on disk may go
> unnoticed, preventing broker restart
> -----------------------------------------------------------------------------------------------------------
>
> Key: QPID-2040
> URL: https://issues.apache.org/jira/browse/QPID-2040
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.5
> Reporter: Robbie Gemmell
> Assignee: Aidan Skinner
> Priority: Critical
> Fix For: 0.6
>
>
> failed update to the PlainPasswordFilePrincipalDatabase on disk may go
> unnoticed, preventing broker restart
> Certain use of the File.renameTo() function is not accompanied by a check of
> the boolean result, meaning a failed rename can leave the file in the wrong
> location, but the cached nature of the PlainPasswordFilePrincipalDatabase
> masks the failure until another operation is attempted upon it that needs the
> output of the previously failed update. This has been observed in a situation
> where the OS Temp dir is on one (local) file system, and the broker
> configuration is on another (remote NFS) filesystem, which caused the rename
> to fail unnoticed.
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