Snapborg/Snapper retention algorithms do not match which results in unnecessary snapshot backups

Question

Snapborg/Snapper retention algorithms do not match which results in unnecessary snapshot backups

Closed this issue 4 years ago · 1 comments

Snapper keeps the first snapshot in a time period, e.g. the snapshot created at 00:00 for TIMELINE_LIMIT_DAILY whereas snapborg backups the latest snapshot in a time period. This results in another (unnecessary) backup when the timeline cleanup routine deletes the snapshot transferred to borg and keeps another one.

Answer 1 · 2020-08-29T14:04:11.000Z

5b879d5 changes the algorithm calculating those snapshots which should be retained to match the one used by snapper. This means, that the first snapshot within a time period is kept and not the last one.