private static synchronized void loadRoundRobinPartitionPolicy() {
if (!datanodesConnected.isEmpty()) datanodesConnected.clear();
datanodesConnected = getDatanodesConnected();
partitionPolicy.clear();
partitionPolicy.addNodes(datanodesConnected.toArray(new NodeStatus[datanodesConnected.size()]));
}
public static NodeStatus nextDatanode() {
return partitionPolicy.nextNode();
}