AWS C++ S3 SDK PutObjectRequest 无法连接到端点

在使用 AWS C++ SDK 时，我遇到了一个问题，即尝试执行 PutObjectRequest 时会抱怨上传超过 ~400KB 时“无法连接到端点”。

Aws::Client::ClientConfiguration clientConfig;
clientConfig.scheme = Aws::Http::Scheme::HTTPS;
clientConfig.region = Aws::Region::US_EAST_1;

Aws::S3::S3Client s3Client(clientConfig);

Aws::S3::Model::PutObjectRequest putObjectRequest;
putObjectRequest.SetBucket("mybucket");
putObjectRequest.SetKey("mykey");

typedef boost::iostreams::basic_array_source<char> Device;
boost::iostreams::stream_buffer<Device> stmbuf(compressedData, dataSize);
std::iostream *stm = new std::iostream(&stmbuf);

putObjectRequest.SetBody(std::shared_ptr<Aws::IOStream>(stm));
putObjectRequest.SetContentLength(dataSize);

Aws::S3::Model::PutObjectOutcome outcome = s3Client.PutObject(putObjectRequest);

只要我的数据小于 ~400KB，它就会上传到 S3 上的文件中，但超出此范围，它就无法连接到端点。我应该能够在一个 PutObjectRequest 中上传最多 5GB 的数据。

有什么想法吗？

Edit:

响应@JonathanHenson的评论，AWS日志重复显示此超时错误：

[DEBUG] 2016-08-04 13:42:03 AWSClient [0x700000081000] Request Successfully signed
[TRACE] 2016-08-04 13:42:03 CurlHttpClient [0x700000081000] Making request to https://s3.amazonaws.com/mybucket/myfile
[TRACE] 2016-08-04 13:42:03 CurlHttpClient [0x700000081000] Including headers:
[TRACE] 2016-08-04 13:42:03 CurlHttpClient [0x700000081000] content-length: 3151261
[TRACE] 2016-08-04 13:42:03 CurlHttpClient [0x700000081000] content-type: binary/octet-stream
[TRACE] 2016-08-04 13:42:03 CurlHttpClient [0x700000081000] host: s3.amazonaws.com
[TRACE] 2016-08-04 13:42:03 CurlHttpClient [0x700000081000] user-agent: aws-sdk-cpp/0.13.9 Darwin/15.6.0 x86_64
[DEBUG] 2016-08-04 13:42:03 CurlHandleContainer [0x700000081000] Attempting to acquire curl connection.
[DEBUG] 2016-08-04 13:42:03 CurlHandleContainer [0x700000081000] Returning connection handle 0x10b09cc00
[DEBUG] 2016-08-04 13:42:03 CurlHttpClient [0x700000081000] Obtained connection handle 0x10b09cc00
[TRACE] 2016-08-04 13:42:03 CurlHttpClient [0x700000081000] HTTP/1.1 100 Continue

[TRACE] 2016-08-04 13:42:03 CurlHttpClient [0x700000081000] 

[ERROR] 2016-08-04 13:42:06 CurlHttpClient [0x700000081000] Curl returned error code 28
[DEBUG] 2016-08-04 13:42:06 CurlHandleContainer [0x700000081000] Releasing curl handle 0x10b09cc00
[DEBUG] 2016-08-04 13:42:06 CurlHandleContainer [0x700000081000] Notifying waiting threads.
[DEBUG] 2016-08-04 13:42:06 AWSClient [0x700000081000] Request returned error. Attempting to generate appropriate error codes from response
[WARN] 2016-08-04 13:42:06 AWSClient [0x700000081000] Request failed, now waiting 12800 ms before attempting again.
[DEBUG] 2016-08-04 13:42:19 InstanceProfileCredentialsProvider [0x700000081000] Checking if latest credential pull has expired.

最终为我解决这个问题的是设置请求超时。请求超时需要足够长才能完成整个传输。如果您要在较慢的互联网连接上传输大文件，请确保请求超时足够长，以允许这些文件传输。

Aws::Client::ClientConfiguration clientConfig;
clientConfig.scheme = Aws::Http::Scheme::HTTPS;
clientConfig.region = Aws::Region::US_EAST_1;
clientConfig.connectTimeoutMs = 30000;
clientConfig.requestTimoutMs = 600000;