* such as total files and blocks, total capacity, total used/freed spaces,etc.
* accorss cluster reported by all name nodes.
* It also lists information such as used space per name node.
*/
final ClusterJspHelper clusterhealthjsp = new ClusterJspHelper();
ClusterStatus cInfo = clusterhealthjsp.generateClusterHealthReport();
XMLOutputter doc = new XMLOutputter(out, "UTF-8");
cInfo.toXML(doc);
} catch (Throwable t) {
if (!(t instanceof SkipPageException)){
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)