Entry<Integer, String> entry = it.next();
Integer taskId = entry.getKey();
String componentId = entry.getValue();
NodePort np = (NodePort) assignment.getTaskToNodeport().get(taskId);
//���ָ��task��������Ϣ
TaskHeartbeat heartbeat = stormClusterState.task_heartbeat(topologyId, taskId);
if (np == null || heartbeat == null) {
continue;
}
String host = (String) assignment.getNodeHost().get(np.getNode());
List<TaskError> errors = stormClusterState.task_errors(topologyId, taskId);