long capacity = dni.getCapacity();
float capacityPercentage = ((float)(dfsUsed + nonDfsUsed) / (float)capacity) * 100.0f;
System.out.println(String.format("%s DataNode - [ ALIVE ] - DFS Capacity: (%d + %d / %d) %.2f%%; xceivers: %d",
new Object[] { dni.getHostName(), dfsUsed, nonDfsUsed, capacity, capacityPercentage, dni.getXceiverCount() }));
}
DatanodeInfo[] deadNodes = dfsClient.datanodeReport(DatanodeReportType.DEAD);
if (deadNodes.length > 0) {
retCode = 2;
for (DatanodeInfo dni : deadNodes) {
System.out.println(dni.getHostName() + " DataNode - [ DEAD ]");
}