hdfs moveFromLocal does not distribute replica blocks across data nodes

According to the HDFS Architecture doc, "For the common case, when the replication factor is three, HDFS’s placement policy is to put one replica on the local machine if the writer is on a datanode..."

Per the same doc, "Because the NameNode does not allow DataNodes to have multiple replicas of the same block, maximum number of replicas created is the total number of DataNodes at that time."