YARN
Use the following steps to enable the Ranger YARN plugin.
On the Ranger Configs page, select the Ranger Plugin tab.
Under YARN Ranger Plugin, select On, then click Save in the black menu bar.
A Save Configuration pop-up appears. Type in a note describing the changes you just made, then click Save.
A Dependent Configuration pop-up appears. Click OK to confirm the configuration updates.
Click OK on the Save Configuration Changes pop-up.
Select YARN in the navigation menu, then select Restart > Restart All Affected to restart the YARN service and load the new configuration.
Click Confirm Restart All on the confirmation pop-up to confirm the YARN restart.
After YARN restarts, the Ranger plugin for YARN will be enabled. Other components may also require a restart.