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https://issues.apache.org/jira/browse/ACCUMULO-1619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Vines updated ACCUMULO-1619:
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Fix Version/s: (was: 1.6.0)
1.7.0
> Provide a way to override parent configuration with a delete
> ------------------------------------------------------------
>
> Key: ACCUMULO-1619
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1619
> Project: Accumulo
> Issue Type: Bug
> Reporter: Christopher Tubbs
> Fix For: 1.7.0
>
>
> Per-table configuration options are inherited from a hierarchy of
> configuration scopes. In some cases, it would be useful to denote a key as
> "do not inherit from the parent" (treat it as though it doesn't exist,
> possibly falling back on the default if the property is defined in the
> default configuration).
> In such cases, a property key could be prefixed with a "!" character (as in
> "NOT") to "unset" a key that is set with a value in a parent scope.
> This ticket removes the previously undocumented restriction that empty string
> is the same as a property not being set at all.
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