[jira] [Updated] (ACCUMULO-1619) Provide a way to override parent configuration with a delete

["Josh Elser (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ACCUMULO-1619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Elser updated ACCUMULO-1619:
---------------------------------
    Fix Version/s:     (was: 1.7.0)
                   1.8.0

> 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: 1.8.0
>
>
> 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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