diff --git a/core/models/models/node.go b/core/models/models/node.go
index 1b846025..b132fa06 100644
--- a/core/models/models/node.go
+++ b/core/models/models/node.go
@@ -5,19 +5,19 @@ import (
 )
 
 type Node struct {
-	any              `collection:"nodes"`
-	BaseModel[Node]  `bson:",inline"`
-	Key              string    `json:"key" bson:"key"`
-	Name             string    `json:"name" bson:"name"`
-	Ip               string    `json:"ip" bson:"ip"`
-	Mac              string    `json:"mac" bson:"mac"`
-	Hostname         string    `json:"hostname" bson:"hostname"`
-	Description      string    `json:"description" bson:"description"`
-	IsMaster         bool      `json:"is_master" bson:"is_master"`
-	Status           string    `json:"status" bson:"status"`
-	Enabled          bool      `json:"enabled" bson:"enabled"`
-	Active           bool      `json:"active" bson:"active"`
-	ActiveAt         time.Time `json:"active_at" bson:"active_ts"`
-	AvailableRunners int       `json:"available_runners" bson:"available_runners"`
-	MaxRunners       int       `json:"max_runners" bson:"max_runners"`
+	any             `collection:"nodes"`
+	BaseModel[Node] `bson:",inline"`
+	Key             string    `json:"key" bson:"key"`
+	Name            string    `json:"name" bson:"name"`
+	Ip              string    `json:"ip" bson:"ip"`
+	Mac             string    `json:"mac" bson:"mac"`
+	Hostname        string    `json:"hostname" bson:"hostname"`
+	Description     string    `json:"description" bson:"description"`
+	IsMaster        bool      `json:"is_master" bson:"is_master"`
+	Status          string    `json:"status" bson:"status"`
+	Enabled         bool      `json:"enabled" bson:"enabled"`
+	Active          bool      `json:"active" bson:"active"`
+	ActiveAt        time.Time `json:"active_at" bson:"active_ts"`
+	CurrentRunners  int       `json:"current_runners" bson:"current_runners"`
+	MaxRunners      int       `json:"max_runners" bson:"max_runners"`
 }
diff --git a/core/node/service/master_service.go b/core/node/service/master_service.go
index f0ebe37f..0aab95f2 100644
--- a/core/node/service/master_service.go
+++ b/core/node/service/master_service.go
@@ -181,7 +181,7 @@ func (svc *MasterService) monitor() (err error) {
 			}
 
 			// update node available runners
-			if err := svc.updateNodeAvailableRunners(n); err != nil {
+			if err := svc.updateNodeRunners(n); err != nil {
 				trace.PrintError(err)
 				return
 			}
@@ -268,18 +268,20 @@ func (svc *MasterService) pingNodeClient(n *models.Node) (ok bool) {
 	return true
 }
 
-func (svc *MasterService) updateNodeAvailableRunners(node *models.Node) (err error) {
+func (svc *MasterService) updateNodeRunners(node *models.Node) (err error) {
 	query := bson.M{
 		"node_id": node.Id,
 		"status":  constants.TaskStatusRunning,
 	}
 	runningTasksCount, err := service.NewModelService[models.Task]().Count(query)
 	if err != nil {
-		return trace.TraceError(err)
+		log.Errorf("failed to count running tasks for node[%s]: %v", node.Key, err)
+		return err
 	}
-	node.AvailableRunners = node.MaxRunners - runningTasksCount
+	node.CurrentRunners = runningTasksCount
 	err = service.NewModelService[models.Node]().ReplaceById(node.Id, *node)
 	if err != nil {
+		log.Errorf("failed to update node runners for node[%s]: %v", node.Key, err)
 		return err
 	}
 	return nil
diff --git a/core/notification/service.go b/core/notification/service.go
index d4ae00c5..4723effb 100644
--- a/core/notification/service.go
+++ b/core/notification/service.go
@@ -270,8 +270,8 @@ func (svc *Service) geContentWithVariables(template string, variables []entity.N
 				content = strings.ReplaceAll(content, v.GetKey(), fmt.Sprintf("%t", vd.Node.Active))
 			case "active_at":
 				content = strings.ReplaceAll(content, v.GetKey(), svc.getFormattedTime(vd.Node.ActiveAt))
-			case "available_runners":
-				content = strings.ReplaceAll(content, v.GetKey(), fmt.Sprintf("%d", vd.Node.AvailableRunners))
+			case "current_runners":
+				content = strings.ReplaceAll(content, v.GetKey(), fmt.Sprintf("%d", vd.Node.CurrentRunners))
 			case "max_runners":
 				content = strings.ReplaceAll(content, v.GetKey(), fmt.Sprintf("%d", vd.Node.MaxRunners))
 			case "created_ts":
diff --git a/core/task/handler/service.go b/core/task/handler/service.go
index ae295d5a..51fe5df2 100644
--- a/core/task/handler/service.go
+++ b/core/task/handler/service.go
@@ -215,13 +215,13 @@ func (svc *Service) getRunnerCount() (count int) {
 	if svc.cfgSvc.IsMaster() {
 		count, err = service.NewModelService[models.Task]().Count(query)
 		if err != nil {
-			trace.PrintError(err)
+			log.Errorf("failed to count tasks: %v", err)
 			return
 		}
 	} else {
 		count, err = client.NewModelService[models.Task]().Count(query)
 		if err != nil {
-			trace.PrintError(err)
+			log.Errorf("failed to count tasks: %v", err)
 			return
 		}
 	}
@@ -260,11 +260,8 @@ func (svc *Service) updateNodeStatus() (err error) {
 		return err
 	}
 
-	// available runners of handler
-	ar := n.MaxRunners - svc.getRunnerCount()
-
 	// set available runners
-	n.AvailableRunners = ar
+	n.CurrentRunners = svc.getRunnerCount()
 
 	// save node
 	n.SetUpdated(n.CreatedBy)