You can back up a Hadoop subclient on demand.
From the navigation pane, go to Protect > Big data.
The Apps page appears.
Click the cluster that you want to back up.
The cluster page appears.
Under Hadoop Apps, click HDFS or HBase.
The app page appears.
Under Subclients, in the row for the subclient, click the action button , and then click Back up.
The Select backup level dialog box appears.
For Backup level, select the backup type.