[BUG][1.9.0~1.9.2] Unexpected database file deletion on backup deletion

[Fallen-Breath]

• Affected version: v1.9, v1.9.1, v1.9.2
• Fixed version: v1.9.3

Please upgrade Prime Backup to the latest version whenever possible, if you have the plugin with its version in the affected range

[Fallen-Breath]

Source: https://t.bilibili.com/1049779707586805763

Translated to English using AI:

Basic Information

• Affected Versions: 1.9.0 ~ 1.9.2
• Fixed Version: 1.9.3
• Trigger Scenario: Backup deletion operations, including manual deletion and automatic cleanup.

Scope of Impact

• When deleting a backup, the data of backups that share the same base fileset with that backup will also be deleted.
• New backups are not affected.
• Backups created or deleted after upgrading to v1.9.3 are not affected.

Damage Results

• Affected backups will become incomplete, losing >= 80% of their files.

Verification Method

Use the !!pb database validate filesets command for self-inspection. If the output shows a mismatch, as in the example provided, it is affected

Example output:

1. 399: fileset.file_object_count 11075 != actual file object count 265

Fileset 399 is damaged, and backups that reuse fileset 399 are all affected.

(Requires plugin v1.9.4+) You can check the pb_files/logs/validate.log log and look for the line with "Affected backup IDs (bad filesets)" to determine the scope of impact.

Repair Method

Cannot be repaired. Restoration must rely on additional backups outside of PB (such as PB’s own database backups, blob store backups, etc.) to the best extent possible.

For affected backups:

• If not needed, they can be ignored or deleted
• If restoration is desired, it is necessary to collect as many backups of the database and the blob store (pb_files/blobs) as possible. I will provide a data recovery tool to do the best possible restoration later (see [BUG][1.9.0~1.9.2] Unexpected database file deletion on backup deletion #64 (comment))

Note: Prime Backup v1.9.0 was released on March 15, 2025, 14 days ago.

[Fallen-Breath]

fixer script

Note

You need to have external backups of these 2 stuffs perform the fix:

1. Backup of the database file (created by PB v1.9+). Take a look in pb_files/db_backup
2. (Optional) Backup of the blob store (pb_files/blobs) backups

No rescue if no backup :(

Script: https://github.com/TISUnion/PrimeBackup/blob/dev/tools/issue_64_fixer.py

Usage: https://github.com/TISUnion/PrimeBackup/blob/dev/tools/README.md#issue_64_fixerpy

[hi54123]

刚想来说我存档炸了，结果就有了（