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MySQL Cluster Manager 8.3 User Manual
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5.7.4 The delete backup Command

delete backup {--backupid=|-I }backup_id [--skip-nodeid=nodeid-list] cluster_name

nodeid-list:
    nodeid[, nodeid[, ...]]

The command removes a backup's directories and their contents on both data nodes and mysqld nodes of the cluster named cluster_name:

mcm> list backups mycluster;
+----------+--------+---------+----------------------+-------+---------+
| BackupId | NodeId | Host    | Timestamp            | Parts | Comment |
+----------+--------+---------+----------------------+-------+---------+
| 1        | 1      | flundra | 2018-04-04 06:31:12Z | 1     |         |
| 1        | 2      | tonfish | 2018-04-04 06:31:12Z | 1     |         |
+----------+--------+---------+----------------------+-------+---------+
2 rows in set (0.04 sec)

mcm> delete backup --backupid=1 mycluster;
+-----------------------------+
| Command result              |
+-----------------------------+
| Backup deleted successfully |
+-----------------------------+
1 row in set (1.22 sec)

mcm> list backups mycluster;
+----------+--------+---------+----------------------+-------+------------------+
| BackupId | NodeId | Host    | Timestamp            | Parts | Comment          |
+----------+--------+---------+----------------------+-------+------------------+
| None     | 2      | tonfish |                      |       | No backups found |
| None     | 1      | flundra |                      |       | No backups found |
+----------+--------+---------+----------------------+-------+------------------+
2 rows in set (0.09 sec)

The ID of the backup to be deleted must be specified using the --backupid option. To delete all backups, run the command on every single backup.

If any data nodes or mysqld nodes have been added after the specified backup was created, list their node IDs with the --skip-nodeid option, or the operation will fail with the complaint that no backup directories exist on those nodes.

Note

The command fails if there are files other than the backup files in any of the backup directories to be deleted. Remove those extra files manually before running the command.