优化节点到API节点连接管理

internal/db/models/node_task_dao.go

@@ -72,6 +72,7 @@ func (this *NodeTaskDAO) CreateNodeTask(tx *dbs.Tx, role string, clusterId int64
 			"isDone":     0,
 			"isOk":       0,
 			"error":      "",
+			"isNotified": 0,
 		})
 	return err
 }
@@ -291,6 +292,7 @@ func (this *NodeTaskDAO) FindAllDoingNodeIds(tx *dbs.Tx, role string) ([]int64,
 		Attr("role", role).
 		Gt("nodeId", 0).
 		Attr("isDone", false).
+		Attr("isNotified", 0).
 		FindAll()
 	if err != nil {
 		return nil, err

internal/rpc/services/nameservers/service_ns_node_stream.go

@@ -170,6 +170,12 @@ func (this *NSNodeService) NsNodeStream(server pb.NSNodeService_NsNodeStreamServ
 	}
 	nodeLocker.Unlock()
 
+	defer func() {
+		nodeLocker.Lock()
+		delete(requestChanMap, nodeId)
+		nodeLocker.Unlock()
+	}()
+
 	// 发送请求
 	go func() {
 		for {

internal/rpc/services/service_node_stream.go

@@ -134,6 +134,12 @@ func (this *NodeService) NodeStream(server pb.NodeService_NodeStreamServer) erro
 	}
 	nodeLocker.Unlock()
 
+	defer func() {
+		nodeLocker.Lock()
+		delete(requestChanMap, nodeId)
+		nodeLocker.Unlock()
+	}()
+
 	// 发送请求
 	go func() {
 		for {