fixed https://github.com/crawlab-team/crawlab/issues/485

backend/database/redis.go

@@ -83,7 +83,7 @@ func (r *Redis) HGet(collection string, key string) (string, error) {
 	defer utils.Close(c)
 
 	value, err2 := redis.String(c.Do("HGET", collection, key))
-	if err2 != nil {
+	if err2 != nil && err2 != redis.ErrNil {
 		log.Error(err2.Error())
 		debug.PrintStack()
 		return value, err2

backend/services/spider.go

@@ -69,6 +69,17 @@ func UploadSpiderToGridFsFromMaster(spider model.Spider) error {
 	spider.FileId = fid
 	_ = spider.Save()
 
+	// 获取爬虫同步实例
+	spiderSync := spider_handler.SpiderSync{
+		Spider: spider,
+	}
+
+	// 获取gfFile
+	gfFile2 := model.GetGridFs(spider.FileId)
+
+	// 生成MD5
+	spiderSync.CreateMd5File(gfFile2.Md5)
+
 	return nil
 }
 
@@ -101,6 +112,7 @@ func UploadToGridFs(fileName string, filePath string) (fid bson.ObjectId, err er
 	}
 	// 关闭文件，提交写入
 	if err = f.Close(); err != nil {
+		debug.PrintStack()
 		return "", err
 	}
 	// 文件ID