Default Permissions of the MRS Cluster

Role

Default Role	Description
Manager_administrator	Manager administrator who has all permissions for Manager. Manager administrators can create first-level tenants, create and modify user groups, and specify user permissions.
Manager_operator	Manager operator who has all the permissions on the Homepage, Cluster, Hosts, and O&M tab pages.
Manager_auditor	Manager auditor who has all permissions on the Audit tab page. Manager auditors can view and manage Manager system audit logs.
Manager_viewer	Manager viewer who has the permission to view information about Homepage, Cluster, Hosts, Alarm, Events, and System > Permission, and download clients. (Only MRS 3.2.0 or later supports client download.)
Manager_tenant	Manager tenant administrator. This role can create and manage sub-tenants for the non-leaf tenants to which the current user belongs. It has the permission to view alarms and events on O&M > Alarm.
System_administrator	System administrator, this role has Manager system administrator rights and all services administrator rights.
default	This role is the default role created for the default tenant. It has the management permissions on the Yarn component and the default queue. The default role of the default tenant that is not the first cluster to be installed is c<cluster ID>_default.
Manager_administrator_180	FusionInsight Manager System administrator group. Internal system user group, which is used only between components.
Manager_auditor_181	FusionInsight Manager system auditor group. Internal system user group, which is used only between components.
Manager_operator_182	FusionInsight Manager system operator group. Internal system user group, which is used only between components.
Manager_viewer_183	FusionInsight Manager system viewer group. Internal system user group, which is used only between components.
System_administrator_186	System administrator group. Internal system user group, which is used only between components.
Manager_tenant_187	Tenant system user group. Internal system user group, which is used only between components.
default_1000	This group is created for tenant. Internal system user group, which is used only between components.

User group

Type	Default User Group	Description
OS User Group	hadoop	Users added to this group are granted the permission to submit all Yarn queue tasks.
	hadoopmanager	Users added to this user group can have the O&M manager rights of HDFS and Yarn. The O&M manager of HDFS can access the NameNode WebUI and perform active to standby switchover manually. The O&M manager of Yarn can access the ResourceManager WebUI, operate NodeManager nodes, refresh queues, and set node labels, but cannot submit tasks.
	hetuadmin	HetuEngine administrator group. Users in this group have the permission to perform operations on HSConsole.
	hive	Common user group. Hive users must belong to this user group.
	iotdbgroup	Users added to this user group have the administrator rights of the IoTDB component.
	kafka	Kafka common user group. A user in this group can access a topic only when a user in the kafkaadmin group grants the read and write permission of the topic to the user.
	kafkaadmin	Kafka administrator group. Users in this group have the rights to create, delete, authorize, read, and write all topics.
	kafkasuperuser	Topic read/write user group of Kafka. Users added to this group have the read and write permissions on all topics.
	cdladmin	CDL administrator group. Only users in this group can access CDL APIs.
	cdl	Common user group of CDL. Users in this group can create and query CDL jobs.
	storm	Users who are added to the storm user group can submit topologies and manage their own topologies.
	stormadmin	Users who are added to the stormadmin user group can have the storm administrator rights and can submit topologies and manage all topologies.
	supergroup	Users added to this user group have the administrator rights of HBase, HDFS, and Yarn and can use Hive.
	yarnviewgroup	Indicates the read-only user group of the Yarn task. Users in this user group can have the view permission on Yarn and MapReduce tasks.
	check_sec_ldap	Perform internal test on the active LDAP to see whether it works properly. This user group is generated randomly in a test and automatically deleted after the test is complete. Internal system user group, which is used only between components.
	compcommon	System internal group for accessing cluster system resources. All system users and system running users are added to this user group by default.
OS User Group	wheel	Primary group of the FusionInsight internal running user omm.
OS User Group	ficommon	System common group that corresponds to compcommon for accessing cluster common resource files stored in the OS.

If the current cluster is not the cluster that is installed for the first time in FusionInsight Manager, the default user group name of all components except Manager in the cluster is c<cluster ID>_ default user group name, for example, c2_hadoop.

User

For details, see MRS Cluster User Accounts.

Service-related User Security Parameters

HDFS
The dfs.permissions.superusergroup parameter specifies the administrator group with the highest permission on the HDFS. The default value is supergroup.
Spark2x
The spark.admin.acls parameter specifies the administrator list of the Spark2x. Members in the list are authorized to manage all Spark tasks. Users not added in the list cannot manage all Spark tasks. The default value is admin.