python - Boto3 Copy_Object 大小失败 > 5GB

Question

我有以下功能

async def _s3_copy_object(self, s3_source, s3_destination):
        source_bucket, source_key = get_s3_bucket_and_key(s3_source)
        destination_bucket, destination_key = get_s3_bucket_and_key(s3_destination)
    
        print("copying object: {} to {}".format(s3_source, s3_destination))
        source = {'Bucket': source_bucket, 'Key': source_key}
        await self._async_s3.copy_object(CopySource=source,
                                         Bucket=destination_bucket, Key=destination_key,
                                         ServerSideEncryption='AES256',
                                         MetadataDirective='COPY',
                                         TaggingDirective='COPY')

如果文件小于 5gb，这很有效，但如果对象超过 5gb，则失败。

我收到以下错误:

An error occurred (InvalidRequest) when calling the CopyObject operation: The specified copy source is larger than the maximum allowable size for a copy source: 5368709120: 1313

有解决办法吗？

Answer 1

您需要使用 boto3 copy方法而不是 copy_object。它将执行复制大于 5GB 的对象时所需的分段上传。它还将为您处理线程。