glow run block when read big file data to mysql

[huanmengerkong]

flow.New().Source(func(chVipDataGlow chan [][]string) {
	defer close(chVipDataGlow)
	file, err := os.Open(fileName)
	fileInfo, err := os.Stat(fileName)
	if err != nil || fileInfo.Size() == 0 {
		return
	}
	defer func() {
		file.Close()
		os.Remove(fileName)
	}()
	if err != nil {
		log.Info(cc).Msgf("企业%d, 打开SFTP文件失败: %v 路径是:%s", enterpriseId, err, fileName)
		return
	}
	buf := bufio.NewReader(file)
	num := 2000
	// var tmp = make([][]string, 0, num
	var tmp [][]string
	var i = 0
	for {
		b, err := buf.ReadString('\n')
		if err != nil && err != io.EOF {
			log.Info(cc).Msgf("数据读取报错了%+v\n", err)
			break
		}
		i++
		cell := strings.Split(b, ",")
		if i == 1 && cell[0] == "数据更新时间" {
			continue
		}
		if len(cell) <= 1 {
			fileCountNumbers += 1
			continue
		}
		tmp = append(tmp, cell)
		if len(tmp) == num {
			fileCountNumbers += num
			chVipDataGlow <- tmp
			tmp = [][]string{}
		}
		if err != nil || err == io.EOF {
			log.Info(cc).Msgf("数据读完了或者报错了%+v", err)
			break
		}
	}
	if len(tmp) > 0 {
		fileCountNumbers += len(tmp)
		chVipDataGlow <- tmp
		tmp = [][]string{}
	}
}, 10).Map(func(params [][]string) [][]string {
	defer func() {
		if errs := recover(); errs != nil {
			log.Error(cc).Msgf("数据库插入执行异常了%+v", errs)
			errDefer = append(errDefer, params...)
			return
		}
	}()
	if len(params) > 0 {
		sucn, ern, _, errData := c.readDataToTableOneByOne(cc, params, enterpriseId)
		errNums += ern
		successNums += sucn
		return errData
	}
	return params
}).Map(func(errItems [][]string) {
        fmt.println(errItems)
}).Run()

[huanmengerkong]

urgent,urgent,urgent,urgent,urgent .please help ！！！

[huanmengerkong]

This file 200MB