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https://issues.apache.org/jira/browse/JAMES-3343?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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René Cordier closed JAMES-3343.
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Resolution: Done
> Configuration safety: disabling deduplication should not be allowed.
> --------------------------------------------------------------------
>
> Key: JAMES-3343
> URL: https://issues.apache.org/jira/browse/JAMES-3343
> Project: James Server
> Issue Type: New Feature
> Components: Blob
> Affects Versions: 3.5.0
> Reporter: Rémi Kowalski
> Priority: Major
> Fix For: 3.6.0
>
>
> h2. Why
> Deduplication allow the use of a single object for several business entities.
> Turning it off, the Duplicating blob store can, upon entity deletes, delete
> blobs used by other entities, jeoparadizing the data integrity of the server.
> Note that enabling deduplication brings no bad consequences.
> h2. DOD
>
> {{Given a James server with deduplication enabled
> When I reconfigure this James server and turn off deduplication
> Then this James server fails}}
> h2. How
> Write a {{StartUpCheck}} checking this property.
> Keep track of the value of "deduplication.enable" value via an event sourcing
> system.
> The aggregate will ensure the rule that "deduplication should not be
> disabled", and your start up check will update the aggregate with the new
> configuration value, if it changed, effectively triggering the check.
> Note that this ticket can be handled separately, only the final integration
> test requires dependency to other work
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