public void update(NodeMetricsUpdateDuccEvent duccEvent) {
String methodName = "update";
duccLogger.trace(methodName, jobid, duccMsg.fetch("enter"));
duccLogger.trace(methodName, jobid, duccMsg.fetchLabel("received")+"NodeMetricsUpdateDuccEvent");
DuccMachinesData.getInstance().put(new DatedNodeMetricsUpdateDuccEvent(duccEvent));
duccLogger.trace(methodName, jobid, duccMsg.fetch("exit"));
}