diff --git a/internal/db/models/node_dao.go b/internal/db/models/node_dao.go
index 73a8b236..84d3f2cf 100644
--- a/internal/db/models/node_dao.go
+++ b/internal/db/models/node_dao.go
@@ -1668,10 +1668,31 @@ func (this *NodeDAO) UpdateNodeActive(tx *dbs.Tx, nodeId int64, isActive bool) e
 	_, err := this.Query(tx).
 		Pk(nodeId).
 		Set("isActive", isActive).
+		Set("inactiveNotifiedAt", 0).
 		Update()
 	return err
 }
 
+// UpdateNodeInactiveNotifiedAt 修改节点的离线通知时间
+func (this *NodeDAO) UpdateNodeInactiveNotifiedAt(tx *dbs.Tx, nodeId int64, inactiveAt int64) error {
+	if nodeId <= 0 {
+		return errors.New("invalid nodeId")
+	}
+	_, err := this.Query(tx).
+		Pk(nodeId).
+		Set("inactiveNotifiedAt", inactiveAt).
+		Update()
+	return err
+}
+
+// FindNodeInactiveNotifiedAt 读取上次的节点离线通知时间
+func (this *NodeDAO) FindNodeInactiveNotifiedAt(tx *dbs.Tx, nodeId int64) (int64, error) {
+	return this.Query(tx).
+		Pk(nodeId).
+		Result("inactiveNotifiedAt").
+		FindInt64Col(0)
+}
+
 // FindNodeActive 检查节点活跃状态
 func (this *NodeDAO) FindNodeActive(tx *dbs.Tx, nodeId int64) (bool, error) {
 	isActive, err := this.Query(tx).
@@ -1827,6 +1848,19 @@ func (this *NodeDAO) FindParentNodeConfigs(tx *dbs.Tx, nodeId int64, groupId int
 		if err != nil {
 			return nil, err
 		}
+	} else if nodeId > 0 {
+		// 当前节点所属分组
+		groupId, err = this.Query(tx).Result("groupId").FindInt64Col(0)
+		if err != nil {
+			return nil, err
+		}
+
+		if groupId > 0 {
+			parentNodes, err = this.FindEnabledNodesWithGroupIdAndLevel(tx, groupId, level+1)
+			if err != nil {
+				return nil, err
+			}
+		}
 	}
 
 	// 当前集群的L2
diff --git a/internal/db/models/node_model.go b/internal/db/models/node_model.go
index e6d4b8b3..1b42d618 100644
--- a/internal/db/models/node_model.go
+++ b/internal/db/models/node_model.go
@@ -13,6 +13,7 @@ type Node struct {
 	CountUp                uint32   `field:"countUp"`                // 连续在线次数
 	CountDown              uint32   `field:"countDown"`              // 连续下线次数
 	IsActive               bool     `field:"isActive"`               // 是否活跃
+	InactiveNotifiedAt     uint64   `field:"inactiveNotifiedAt"`     // 离线通知时间
 	UniqueId               string   `field:"uniqueId"`               // 节点ID
 	Secret                 string   `field:"secret"`                 // 密钥
 	Name                   string   `field:"name"`                   // 节点名
@@ -50,6 +51,7 @@ type NodeOperator struct {
 	CountUp                interface{} // 连续在线次数
 	CountDown              interface{} // 连续下线次数
 	IsActive               interface{} // 是否活跃
+	InactiveNotifiedAt     interface{} // 离线通知时间
 	UniqueId               interface{} // 节点ID
 	Secret                 interface{} // 密钥
 	Name                   interface{} // 节点名
diff --git a/internal/rpc/services/service_node_stream.go b/internal/rpc/services/service_node_stream.go
index 24518c04..9133b91b 100644
--- a/internal/rpc/services/service_node_stream.go
+++ b/internal/rpc/services/service_node_stream.go
@@ -52,7 +52,7 @@ func NextCommandRequestId() int64 {
 
 func init() {
 	// 清理WaitingChannelMap
-	ticker := time.NewTicker(30 * time.Second)
+	var ticker = time.NewTicker(30 * time.Second)
 	goman.New(func() {
 		for range ticker.C {
 			nodeLocker.Lock()
@@ -110,8 +110,6 @@ func (this *NodeService) NodeStream(server pb.NodeService_NodeStreamServer) erro
 		return err
 	}
 
-	//logs.Println("[RPC]accepted node '" + numberutils.FormatInt64(nodeId) + "' connection")
-
 	var tx = this.NullTx()
 
 	// 标记为活跃状态
@@ -121,25 +119,31 @@ func (this *NodeService) NodeStream(server pb.NodeService_NodeStreamServer) erro
 	}
 
 	if !oldIsActive {
-		err = models.SharedNodeDAO.UpdateNodeActive(tx, nodeId, true)
+		inactiveNotifiedAt, err := models.SharedNodeDAO.FindNodeInactiveNotifiedAt(tx, nodeId)
 		if err != nil {
 			return err
 		}
+		if inactiveNotifiedAt > 0 {
+			err = models.SharedNodeDAO.UpdateNodeActive(tx, nodeId, true)
+			if err != nil {
+				return err
+			}
 
-		// 发送恢复消息
-		clusterId, err := models.SharedNodeDAO.FindNodeClusterId(tx, nodeId)
-		if err != nil {
-			return err
-		}
-		nodeName, err := models.SharedNodeDAO.FindNodeName(tx, nodeId)
-		if err != nil {
-			return err
-		}
-		subject := "节点\"" + nodeName + "\"已经恢复在线"
-		msg := "节点\"" + nodeName + "\"已经恢复在线"
-		err = models.SharedMessageDAO.CreateNodeMessage(tx, nodeconfigs.NodeRoleNode, clusterId, nodeId, models.MessageTypeNodeActive, models.MessageLevelSuccess, subject, msg, nil, false)
-		if err != nil {
-			return err
+			// 发送恢复消息
+			clusterId, err := models.SharedNodeDAO.FindNodeClusterId(tx, nodeId)
+			if err != nil {
+				return err
+			}
+			nodeName, err := models.SharedNodeDAO.FindNodeName(tx, nodeId)
+			if err != nil {
+				return err
+			}
+			var subject = "节点\"" + nodeName + "\"已经恢复在线"
+			var msg = "节点\"" + nodeName + "\"已经恢复在线"
+			err = models.SharedMessageDAO.CreateNodeMessage(tx, nodeconfigs.NodeRoleNode, clusterId, nodeId, models.MessageTypeNodeActive, models.MessageLevelSuccess, subject, msg, nil, false)
+			if err != nil {
+				return err
+			}
 		}
 	}
 
diff --git a/internal/tasks/node_monitor_task.go b/internal/tasks/node_monitor_task.go
index 63cc56d7..5ebbe458 100644
--- a/internal/tasks/node_monitor_task.go
+++ b/internal/tasks/node_monitor_task.go
@@ -98,12 +98,18 @@ func (this *NodeMonitorTask) MonitorCluster(cluster *models.NodeCluster) error {
 				this.inactiveMap[key] = 0
 				this.notifiedMap[nodeId] = time.Now().Unix()
 
-				subject := "节点\"" + node.Name + "\"已处于离线状态"
-				msg := "集群'" + cluster.Name + "'节点\"" + node.Name + "\"已处于离线状态，请检查节点是否异常"
+				var subject = "节点\"" + node.Name + "\"已处于离线状态"
+				var msg = "集群'" + cluster.Name + "'节点\"" + node.Name + "\"已处于离线状态，请检查节点是否异常"
 				err = models.SharedMessageDAO.CreateNodeMessage(nil, nodeconfigs.NodeRoleNode, clusterId, int64(node.Id), models.MessageTypeNodeInactive, models.LevelError, subject, msg, nil, false)
 				if err != nil {
 					return err
 				}
+
+				// 设置通知时间
+				err = models.SharedNodeDAO.UpdateNodeInactiveNotifiedAt(nil, nodeId, time.Now().Unix())
+				if err != nil {
+					return err
+				}
 			}
 		} else {
 			delete(this.inactiveMap, key)