When the cn.notifyReplicaNodes method, if the target MN source code is a v2 mn, we will use v2 api; if it is a v1 node, we will use v1 api.
When the cn.notifyReplicaNodes method, if the target MN source code is a v2 mn, we will use v2 api; if it is a v1 node, we will use v1 api.