access control expression (ACE)

A Boolean expression that defines a combination of users, groups, or roles that have access to an object stored natively such as a directory, file, or MapR Database table .

Access Control Expression (ACE)

Remember: An ACE (up to 64KB in length) is a combination of users, groups, and/or roles for whom access (to volume data) is defined using boolean expressions and sub expressions within single quotes. When you pass in an access type that has already been set, the new value replaces the existing value for that access type. There is no change to access types that are not passed in with the command, whether or not they were set.