diff --git a/backend/model/spider.go b/backend/model/spider.go
index c4c94edf..65782fe8 100644
--- a/backend/model/spider.go
+++ b/backend/model/spider.go
@@ -92,8 +92,6 @@ func (spider *Spider) GetLastTask() (Task, error) {
 	return tasks[0], nil
 }
 
-
-
 func GetSpiderList(filter interface{}, skip int, limit int) ([]Spider, error) {
 	s, c := database.GetCol("spiders")
 	defer s.Close()
@@ -165,6 +163,15 @@ func RemoveSpider(id bson.ObjectId) error {
 		return err
 	}
 
+	// gf上的文件
+	s, gf := database.GetGridFs("files")
+	defer s.Close()
+
+	if err := gf.RemoveId(result.FileId); err != nil {
+		log.Error("remove file error, id:" + result.FileId.Hex())
+		return err
+	}
+
 	return nil
 }
 
diff --git a/backend/routes/utils.go b/backend/routes/utils.go
index 2b45c5f1..38ca35bb 100644
--- a/backend/routes/utils.go
+++ b/backend/routes/utils.go
@@ -1,11 +1,13 @@
 package routes
 
 import (
+	"github.com/apex/log"
 	"github.com/gin-gonic/gin"
 	"runtime/debug"
 )
 
 func HandleError(statusCode int, c *gin.Context, err error) {
+	log.Errorf("handle error:" + err.Error())
 	debug.PrintStack()
 	c.AbortWithStatusJSON(statusCode, Response{
 		Status:  "ok",
diff --git a/backend/services/node.go b/backend/services/node.go
index 1fa2370c..09b49dbf 100644
--- a/backend/services/node.go
+++ b/backend/services/node.go
@@ -124,6 +124,7 @@ func IsMaster() bool {
 	return viper.GetString("server.master") == Yes
 }
 
+// 所有调用IsMasterNode的方法，都永远会在master节点执行，所以GetCurrentNode方法返回永远是master节点
 // 该ID的节点是否为主节点
 func IsMasterNode(id string) bool {
 	curNode, _ := GetCurrentNode()
diff --git a/backend/services/spider.go b/backend/services/spider.go
index 4d32594b..1397e335 100644
--- a/backend/services/spider.go
+++ b/backend/services/spider.go
@@ -297,6 +297,7 @@ func PublishSpider(spider model.Spider) (err error) {
 		return
 	}
 	channel := "files:upload"
+	log.Info("publish files.upload event, file id:" + msg.FileId)
 	if err = database.Publish(channel, string(msgStr)); err != nil {
 		log.Errorf(err.Error())
 		debug.PrintStack()
@@ -308,6 +309,7 @@ func PublishSpider(spider model.Spider) (err error) {
 
 // 上传爬虫回调
 func OnFileUpload(channel string, msgStr string) {
+	log.Info("received files.upload event, msgStr:" + msgStr)
 	s, gf := database.GetGridFs("files")
 	defer s.Close()
 
@@ -322,7 +324,7 @@ func OnFileUpload(channel string, msgStr string) {
 	// 从GridFS获取该文件
 	f, err := gf.OpenId(bson.ObjectIdHex(msg.FileId))
 	if err != nil {
-		log.Errorf(err.Error())
+		log.Errorf("open file id: " + msg.FileId + ", error: " + err.Error())
 		debug.PrintStack()
 		return
 	}
diff --git a/backend/services/task.go b/backend/services/task.go
index 8c0ff8a1..8c3c3407 100644
--- a/backend/services/task.go
+++ b/backend/services/task.go
@@ -472,6 +472,7 @@ func CancelTask(id string) (err error) {
 }
 
 func HandleTaskError(t model.Task, err error) {
+	log.Error("handle task error:" + err.Error())
 	t.Status = constants.StatusError
 	t.Error = err.Error()
 	t.FinishTs = time.Now()
diff --git a/frontend/src/components/InfoView/TaskInfoView.vue b/frontend/src/components/InfoView/TaskInfoView.vue
index bfe6419a..e902e959 100644
--- a/frontend/src/components/InfoView/TaskInfoView.vue
+++ b/frontend/src/components/InfoView/TaskInfoView.vue
@@ -86,15 +86,15 @@ export default {
       return dayjs(str).format('YYYY-MM-DD HH:mm:ss')
     },
     getWaitDuration (row) {
-      if (row.start_ts.match('^0001')) return 'NA'
+      if (!row.start_ts || row.start_ts.match('^0001')) return 'NA'
       return dayjs(row.start_ts).diff(row.create_ts, 'second')
     },
     getRuntimeDuration (row) {
-      if (row.finish_ts.match('^0001')) return 'NA'
+      if (!row.finish_ts || row.finish_ts.match('^0001')) return 'NA'
       return dayjs(row.finish_ts).diff(row.start_ts, 'second')
     },
     getTotalDuration (row) {
-      if (row.finish_ts.match('^0001')) return 'NA'
+      if (!row.finish_ts || row.finish_ts.match('^0001')) return 'NA'
       return dayjs(row.finish_ts).diff(row.create_ts, 'second')
     }
   }
diff --git a/frontend/src/views/task/TaskDetail.vue b/frontend/src/views/task/TaskDetail.vue
index a1edb497..89309ea8 100644
--- a/frontend/src/views/task/TaskDetail.vue
+++ b/frontend/src/views/task/TaskDetail.vue
@@ -99,12 +99,12 @@ export default {
       this.$st.sendEv('任务详情-结果', '下载CSV')
     }
   },
-  created () {
-    this.$store.dispatch('task/getTaskData', this.$route.params.id)
+  async created () {
+    await this.$store.dispatch('task/getTaskData', this.$route.params.id)
     this.$store.dispatch('task/getTaskLog', this.$route.params.id)
     this.$store.dispatch('task/getTaskResults', this.$route.params.id)
 
-    if (['running'].includes(this.taskForm.status)) {
+    if (this.taskForm && ['running'].includes(this.taskForm.status)) {
       this.handle = setInterval(() => {
         this.$store.dispatch('task/getTaskLog', this.$route.params.id)
       }, 5000)