Commit Graph

1 Commits

Author SHA1 Message Date
Krishnan Parthasarathi
7926401cbd
ilm: Handle DeleteAllVersions action differently for DEL markers (#19481)
i.e., this rule element doesn't apply to DEL markers.

This is a breaking change to how ExpiredObejctDeleteAllVersions
functions today. This is necessary to avoid the following highly probable
footgun scenario in the future.

Scenario:
The user uses tags-based filtering to select an object's time to live(TTL). 
The application sometimes deletes objects, too, making its latest
version a DEL marker. The previous implementation skipped tag-based filters
if the newest version was DEL marker, voiding the tag-based TTL. The user is
surprised to find objects that have expired sooner than expected.

* Add DelMarkerExpiration action

This ILM action removes all versions of an object if its
the latest version is a DEL marker.

```xml
<DelMarkerObjectExpiration>
    <Days> 10 </Days>
</DelMarkerObjectExpiration>
```

1. Applies only to objects whose,
  • The latest version is a DEL marker.
  • satisfies the number of days criteria
2. Deletes all versions of this object
3. Associated rule can't have tag-based filtering

Includes,
- New bucket event type for deletion due to DelMarkerExpiration
2024-04-30 18:11:10 -07:00