Let us assume a container X has nodes A, B and C as replicas. For whatever reason if B and C go down for say 48 hrs i.e they are brought back up after 48 hrs and they have not suffered any hardware failures of any kind. What happens in the interim period? Are containers placed elsewhere and then migrated back to B and C or are all containers that were on B and C moved elsewhere for good? Also what is the behavior if the nodes are down for say a much shorter period of a few mins?