In the previous section, we covered a basic overview of ACLs and how to enable ACLs in a Hadoop-YARN cluster. In this section, we'll discuss in depth the implementation of ACLs and the different types of ACLs available for YARN.
ACLs define the authorization rules for an object in a YARN. A cluster administrator can specify a list of users and groups authorized to access the object. It is a comma-separated list of both users and groups. These two lists (users and groups) are separated by a space:
user3 group1: The above ACL value specifies that
user3and other users belonging to
group1are authorized to access the object
user2: If you want to authorize only a specific list of ...