Connection Modes

Connection Mode	Support for Username/Password Authentication	Support for Keytab Authentication	Support for Cross-Network-Segment Client Access	Prerequisite
HSFabric	Supported	Supported	Supported	The node running user services can communicate with the service nodes where HSFabric resides on the HetuEngine server side. Dual-plane network scenarios are supported. Only fixed IP addresses and ports need to be opened for HSFabric. Supported version: MRS 3.1.3 or later.
HSBroker	Supported	Unsupported	Unsupported	The node running user services can communicate with the service nodes where HSBroker and Coordinator (randomly distributed in Yarn NodeManger) reside on the HetuEngine server side. A large number of IP addresses and ports need to be opened for coordinators. Supported version: MRS 3.1.0 or later