Christopher Tubbs created ACCUMULO-1619:
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Summary: 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: 1.6.0
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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