Elasticsearch backups are always incremental. Let's say I have a daily backup job. After one week I have 7 snapshots.
On the 8th day if Im going to delete the day1's snapshot, then the rest of the snapshots will become useless? (since they are smaller in size.
Or before deleting the unchanged data will push it to the next incremental backup and make it a complete backup?
Another doubt is, if I want to restore the day 3's backup then will it only restore the day 3's backup(I mean that incremental data only) ? or apply snapshots from day 1 to day 3?