diff --git a/models/cloudbrain.go b/models/cloudbrain.go
index 6e8ee1505..ceb552811 100755
--- a/models/cloudbrain.go
+++ b/models/cloudbrain.go
@@ -1110,7 +1110,8 @@ func UpdateJob(job *Cloudbrain) error {
 func updateJob(e Engine, job *Cloudbrain) error {
 	var sess *xorm.Session
 	sess = e.Where("job_id = ?", job.JobID)
-	_, err := sess.Cols("status", "container_id", "container_ip").Update(job)
+	//_, err := sess.Cols("status", "container_id", "container_ip").Update(job)
+	_, err := sess.Update(job)
 	return err
 }
 
diff --git a/modules/cron/tasks_basic.go b/modules/cron/tasks_basic.go
index 294690d45..b9838e66f 100755
--- a/modules/cron/tasks_basic.go
+++ b/modules/cron/tasks_basic.go
@@ -134,7 +134,7 @@ func registerHandleBlockChainUnSuccessRepos() {
 	RegisterTaskFatal("handle_blockchain_unsuccess_repos", &BaseConfig{
 		Enabled:    true,
 		RunAtStart: true,
-		Schedule:   "@every 1m",
+		Schedule:   "@every 10m",
 	}, func(ctx context.Context, _ *models.User, _ Config) error {
 		repo.HandleBlockChainUnSuccessRepos()
 		return nil
@@ -145,7 +145,7 @@ func registerHandleBlockChainMergedPulls() {
 	RegisterTaskFatal("handle_blockchain_merged_pull", &BaseConfig{
 		Enabled:    true,
 		RunAtStart: true,
-		Schedule:   "@every 1m",
+		Schedule:   "@every 10m",
 	}, func(ctx context.Context, _ *models.User, _ Config) error {
 		repo.HandleBlockChainMergedPulls()
 		return nil
@@ -156,7 +156,7 @@ func registerHandleBlockChainUnSuccessCommits() {
 	RegisterTaskFatal("handle_blockchain_unsuccess_commits", &BaseConfig{
 		Enabled:    true,
 		RunAtStart: true,
-		Schedule:   "@every 3m",
+		Schedule:   "@every 10m",
 	}, func(ctx context.Context, _ *models.User, _ Config) error {
 		repo.HandleBlockChainUnSuccessCommits()
 		return nil
diff --git a/modules/setting/setting.go b/modules/setting/setting.go
index f7b78235b..dd51623c1 100755
--- a/modules/setting/setting.go
+++ b/modules/setting/setting.go
@@ -448,23 +448,24 @@ var (
 	GpuTypes         string
 	DebugServerHost  string
 	ResourceSpecs    string
+	MaxDuration      int64
 
 	//benchmark config
 	IsBenchmarkEnabled  bool
-	BenchmarkOwner       string
+	BenchmarkOwner      string
 	BenchmarkName       string
 	BenchmarkServerHost string
 	BenchmarkCategory   string
 
 	//snn4imagenet config
 	IsSnn4imagenetEnabled  bool
-	Snn4imagenetOwner       string
+	Snn4imagenetOwner      string
 	Snn4imagenetName       string
 	Snn4imagenetServerHost string
 
 	//snn4imagenet config
 	IsBrainScoreEnabled  bool
-	BrainScoreOwner       string
+	BrainScoreOwner      string
 	BrainScoreName       string
 	BrainScoreServerHost string
 
@@ -1238,6 +1239,7 @@ func NewContext() {
 	JobType = sec.Key("GPU_TYPE_DEFAULT").MustString("openidebug")
 	GpuTypes = sec.Key("GPU_TYPES").MustString("")
 	ResourceSpecs = sec.Key("RESOURCE_SPECS").MustString("")
+	MaxDuration = sec.Key("MAX_DURATION").MustInt64(14400)
 
 	sec = Cfg.Section("benchmark")
 	IsBenchmarkEnabled = sec.Key("ENABLED").MustBool(false)
diff --git a/routers/repo/cloudbrain.go b/routers/repo/cloudbrain.go
index be5eab52d..04af5dba4 100755
--- a/routers/repo/cloudbrain.go
+++ b/routers/repo/cloudbrain.go
@@ -822,10 +822,24 @@ func SyncCloudbrainStatus() {
 				taskRes, _ := models.ConvertToTaskPod(taskRoles[cloudbrain.SubTaskName].(map[string]interface{}))
 				task.Status = taskRes.TaskStatuses[0].State
 				if task.Status != string(models.JobWaiting) {
+					task.Duration = time.Now().Unix() - taskRes.TaskStatuses[0].StartAt.Unix()
 					err = models.UpdateJob(task)
 					if err != nil {
 						log.Error("UpdateJob(%s) failed:%v", task.JobName, err)
-						continue
+					}
+
+					if task.Duration >= setting.MaxDuration {
+						log.Info("begin to stop job(%s), because of the duration", task.JobName)
+						err = cloudbrain.StopJob(task.JobID)
+						if err != nil {
+							log.Error("StopJob(%s) failed:%v", task.JobName, err)
+							continue
+						}
+						task.Status = string(models.JobStopped)
+						err = models.UpdateJob(task)
+						if err != nil {
+							log.Error("UpdateJob(%s) failed:%v", task.JobName, err)
+						}
 					}
 				}
 			}