The CEPH_OSD_ALLOC_HINT_FLAG_IMMUTABLE and CEPH_OSD_ALLOC_HINT_FLAG_APPEND_ONLY flags are set by rados bench via ALLOC_HINT_FLAG_IMMUTABLE and ALLOC_HINT_FLAG_APPEND_ONLY. It is used by BlueStore to decide on checksum and compression heuristics.
Description
Description
| Status | Assigned | Task | ||
|---|---|---|---|---|
| Migrated | gitlab-migration | T3116 Roll out at least one operational mirror | ||
| Migrated | gitlab-migration | T3054 Scale out object storage design | ||
| Migrated | gitlab-migration | T3056 Ceph as an object storage | ||
| Migrated | gitlab-migration | T3055 Ceph and immutable & append only storage |
Event Timeline
Comment Actions
It was discussed, during the Ceph Developer Summit 2021 and the conclusion was that RADOS is not the place to implement immutable optimizations. RGW is a better fit.