Question

从Google存储桶下载文件时，我遇到了一个奇怪的问题。

如果我在Linux上并运行此代码，则64kb PDF文件需要5分钟的下载时间。

+-----------+-----+-------+
|   Date    | ID  | Value |
+-----------+-----+-------+
| 1/25/2019 | 111 |    50 |
| 1/26/2019 | 111 |   100 |
| 1/27/2019 | 111 |   150 |
| 1/28/2019 | 111 |   150 |
| 1/29/2019 | 111 |   150 |
| 1/30/2019 | 111 |   150 |
| 1/31/2019 | 111 |   150 |
| 1/25/2019 | 222 |   500 |
| 1/26/2019 | 222 |  1000 |
| 1/27/2019 | 222 |  1500 |
| 1/28/2019 | 222 |  1500 |
| 1/29/2019 | 222 |  1500 |
| 1/30/2019 | 222 |  1500 |
| 1/31/2019 | 222 |  1500 |
+-----------+-----+-------+

这是def generate_document(request): if not ensure_valid_user(request): return redirect('/?result=0') try: long_name = request.GET['long_name'] short_name = request.GET['short_name'] file_data, size = CloudStorageManager.get_file(long_name) response = HttpResponse(file_data, content_type='application/octet-stream') response['Content-Disposition'] = 'attachment; filename={}'.format(short_name) response['Content-Length'] = size return response except Exception as ex: print(ex)类中的重要方法：

CloudStorageManager

我迷失的是在Linux上，如果我从class CloudStorageManager: # private key file, used for local testing storage_client = storage.Client.from_service_account_json( 'CloudStorageAPIKey.json') bucket = storage_client.get_bucket("my.private.bucket") @staticmethod def get_file(long_name): bucket = CloudStorageManager.bucket blob = bucket.blob(long_name) file_string = blob.download_as_string() return file_string, blob.size方法中注释掉response['Content-Length'] = size，下载将以正常速度进行，但是当我回到家并在Windows上用该行注释时，下载将再次耗时5分钟，并且可以与包含的行一起使用。

有人可以帮我解释我要去哪里吗？

Answer 1

足够有趣

我通过分配以下来源的回复Content-Length解决了该问题：

response['Content-Length'] = size

到

response['Content-Length'] = len(response.content)

Google存储桶下载缓慢

1 个答案: