[HBASE-28084] Incremental backups should be forbidden after deleting backups

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: backup&restore
• Assignee: Unassigned
• Reporter: Dieter De Paepe
• Created: 14/Sep/23 11:34
• Updated: 28/Jun/24 17:06

Description

Imagine I have a set of backups (Full1, Incr2, Incr3), delete the last backup (Incr3), and then create a new incremental backup (Incr4).

This backup history will now show: Full1, Incr2, Incr4.

However, restoring Incr4 will not contain the data that was captured in Incr3, effectively leading to data loss. This will certainly surprise some users.

I suggest to add some internal bookkeeping to prevent incremental backups in case the most recent backup was deleted.