Help Center/ MapReduce Service/ User Guide/ Managing Clusters/ Managing MRS Cluster Components/ Enabling and Disabling Ranger Authentication for an MRS Component
Updated on 2024-09-23 GMT+08:00
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Enabling and Disabling Ranger Authentication for an MRS Component

By default, the Ranger service is installed and Ranger authentication is enabled for a newly installed cluster with Kerberos authentication enabled. You can use the permission plug-in of the component to establish fine-grained security access policies for accessing component resources. If Ranger authentication is not required, the cluster administrator can manually disable Ranger authentication on the service page. After Ranger authentication is disabled, the system continues to perform permission control based on the role model of Manager when accessing component resources.

In a cluster upgraded from an earlier version, Ranger authentication is not used by default when users access component resources. The cluster administrator can manually enable Ranger authentication after installing the Ranger service.

  • This section applies only to MRS 3.x or later.
  • In a cluster in security mode, the following components support Ranger authentication: HDFS, YARN, Kafka, Hive, HBase, Storm, Impala, HetuEngine, CDL, and Spark/Spark2x.
  • In a cluster in non-security mode, Ranger supports permission control on component resources based on OS users. The following components support Ranger authentication: HBase, HDFS, Hive, Spark/Spark2x, and YARN.
  • After Ranger authentication is enabled, all authentication of the component will be managed by Ranger. The permissions set by the original authentication plug-in will become invalid (The ACL rules of HDFS and YARN components still take effect). Exercise caution when performing this operation. You are advised to deploy permissions on Ranger in advance.
  • After Ranger authentication is disabled, all authentication of the component will be managed by the permission plug-in of the component. The permission set on Ranger will become invalid. Exercise caution when performing this operation. You are advised to deploy permissions on Manager in advance.

Enabling Ranger Authentication

  1. Log in to FusionInsight Manager.
  2. Choose Cluster > Services.
  3. Click the specified service name on the service management page.
  4. On the service details page, expand the More drop-down list and select Enable Ranger.
  5. In the displayed dialog box, enter the password of the current login user and click OK.
  6. In the service list, restart the service whose configuration has expired.

Disabling Ranger Authentication

  1. Log in to FusionInsight Manager.
  2. Choose Cluster > Services.
  3. Click the specified service name on the service management page.
  4. On the service details page, expand the More drop-down list and select Disable Ranger.
  5. Enter the password of the current login user and click OK. In the displayed dialog box, click OK.
  6. In the service list, restart the service whose configuration has expired.