Ceph » rgw

We'll change the way we sync the metadata: instead of reading log on source zone and apply it on the metadata objects on the destination, we'll clone it into the destination, then apply the destination using the same versioning the source uses.
This will work in conjuction with the new Term that defines the interval where a specific master existed.
When switching to new Term, we need to roll back versions that were applied but do not exist on the new master.