One generation of the shard topology.
An epoch records the algorithm as well as the shard set, so a change of algorithm is walked back exactly like a change of topology.
1.4.0
How placement was computed during this epoch
Monotonic generation number; higher is newer
Shard bindings that existed during this epoch, in declaration order
One generation of the shard topology.
An epoch records the algorithm as well as the shard set, so a change of algorithm is walked back exactly like a change of topology.
Since
1.4.0