newNode.setTree(callTree);
callTree.setRootNode(newNode);
callTreeRecorder.setDepth(0);
// �J�n����VM��Ԃ��L�^
VMStatus vmStatus = createVMStatus(null, newNode, callTreeRecorder);
newNode.setStartTime(startTime);
newNode.setStartVmStatus(vmStatus);
HadoopInfo hadoopInfo = new HadoopInfo();
hadoopInfo.setHost(hostName);