Authorizing Remote Procedure Calls (RPC)
DataStax Enterprise supports authentication and role-based access control for Remote Procedure Calls to Java objects and methods.
Here is the syntax for remote calls for the specified procedure on the remote host:
CALL Object.Method(parameter1, parameter2)
RPC permissions
RPC permissions are role-based to provide fine-grained control over which roles can execute which commands.
The GRANT and REVOKE CQL commands provide and revoke access to objects and methods.
DataStax Enterprise supports this CQL syntax in cqlsh to grant RPC permissions:
GRANT <permission> ON ALL REMOTE CALLS TO <role>;
GRANT EXECUTE ON REMOTE OBJECT <object> TO <role>;
GRANT EXECUTE ON REMOTE METHOD <object>.<method> TO <role>;DataStax Enterprise supports this CQL syntax in cqlsh to revoke RPC permissions:
REVOKE EXECUTE ON ALL REMOTE CALLS FROM <role>;
REVOKE EXECUTE ON REMOTE OBJECT <object> FROM <role>;
REVOKE EXECUTE ON REMOTE METHOD <object>.<method> FROM <role>;where:
-
EXECUTEis the only permission that applies to RPC. -
<role>is the role to which you grant or revoke authorization.
Managing the permissions of a large number of users can be considerably simplified through the reuse of a small number of high-level roles.
