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. 

