LeaseGroup

The lease group of one bounded context in one service: the nodes of service share the partitions of context's log, and command routing and every subscription of the context share their owners. A service that hosts several contexts has one group, with its own partitions and leases, per context.

The partitions of another context's published topic that the service's subscriptions read are leased the same way, in the group topic names, (service, "topic:<name>").