diff --git a/node/app/node_server.go b/node/app/node_server.go
index 98316a5..a18ba55 100644
--- a/node/app/node_server.go
+++ b/node/app/node_server.go
@@ -155,8 +155,6 @@ func (s *NodeServiceServer) sendToIotaChannels(data []common_models.IotaData) (c
 		log.Println("Timeout while trying to send iotaData.")
 		return nil, false
 	}
-
-	return nil, false // 如果所有通道都满了，返回 nil 和 false
 }
 
 // 将 IotaData 转换为 DeviceData, 转换后数据发送到 s.processChannels
@@ -213,9 +211,7 @@ func (s *NodeServiceServer) HandleIotaChan(ch chan []common_models.IotaData, ind
 			sendTime := time.Now()
 			processChannel, ok := s.sendToProcessChannels(processDataArray, index) // 这里会一直等到有资源
 			if !ok {
-				// TODO processChannels 满了之后做什么处理？
 				log.Printf("3.iotaDataArray[%v] s.processChannels %d个通道都已满，被阻塞。", formattedTime, len(s.processChannels))
-
 			} else {
 				log.Printf("3.iotaDataArray[%v] 已发送至s.processChannels。processChannel[%p]数据量：%d/%d, \n发送耗时：%v ,iotaDataArray处理耗时：%v",
 					formattedTime, processChannel, len(processChannel), cap(processChannel), time.Since(sendTime), time.Since(dataHandleTime))