new HdfsConfiguration(datanode.getConf());
try {
final DFSClient dfs = DatanodeJspHelper.getDFSClient(request,
datanode, conf, getUGI(request, conf));
final MD5MD5CRC32FileChecksum checksum = dfs.getFileChecksum(path);
MD5MD5CRC32FileChecksum.write(xml, checksum);
} catch(IOException ioe) {
writeXml(ioe, path, xml);
} catch (InterruptedException e) {
writeXml(e, path, xml);