This description describes technologies relating to resource allocation in distributed systems. In general, one aspect of the subject matter described in this specification can be embodied in methods that identify an original distribution of replicas for a group of users, the original distribution including at least one view corresponding to an assignment of all a user's replicas a combination of clusters; identify a desired distribution of replicas of the group of users, the desired distribution corresponding to an assignment of one user replica to one cluster; determine detailed user replica views for the group of users based on the original distribution and the desired distribution; and allocate resources according to the detailed user replica views for the group.