How to delete all data in HBase?

To delete all data in HBase, you need to follow these steps:

1. Start the HBase shell. Log in to the HBase shell using the following command:
2. HBase command line interface
3. Use the scan command to retrieve all table names. Enter the following command:
4. enumerate
5. A list of all tables will be displayed.
6. Delete all data from each table. For each table, input the following command:
7. Deactivate ‘table_name’
8. The above command will perform the following operations sequentially: disable the table, clear all data in the table, and delete the table.
9. Repeat the steps above until the data from all tables has been deleted.

Please note that deleting all data will be irreversible, and the deleted data will not be recoverable. Before performing these actions, please make sure you have backed up any data that needs to be kept.