How Do I Delete Residual Table Names in the table-lock Directory of ZooKeeper?

Question

In security mode, names of tables that failed to be created are unnecessarily retained in the table-lock node (default directory is /hbase/table-lock) of ZooKeeper. How do I delete these residual table names?

Answer

Perform the following steps:

1. On the client, run the kinit command as the hbase user to obtain a security certificate.
2. Run the hbase zkcli command to launch the ZooKeeper Command Line Interface (zkCLI).
3. Run the ls /hbase/table command on the zkCLI to check whether the table name of the table that fails to be created exists.
   • If the table name exists, no further operation is required.
   • If the table name does not exist, run ls /hbase/table-lockto check whether the table name of the table fail to be created exist. If the table name exists, run thedelete /hbase/table-lock/<table>command to delete the table name. In thedelete /hbase/table-lock/<table>command,<table> indicates the residual table name.