Azure.RequestFailedException : No such host is known

Question

我有一个应用程序(aspnet core app 3.1)，在启动期间使用以下代码从 azure blob 存储加载数据:

BlobClient client = new BlobClient(loaderOptions.ConnectionString, loaderOptions.BlobContainerName, loaderOptions.BlobName);

var response = client.Download();

using (var memoryStream = new MemoryStream())
{
     response.Value.Content.CopyTo(memoryStream);
     return memoryStream.ToArray();
}

在本地，在我的电脑上一切正常。但是，当我将此应用程序发布到 azure 应用程序服务(Windows)时，出现以下错误:

Unhandled exception. System.AggregateException: Retry failed after 6 tries. (No such host is known.) (No such host is known.) (No such host is known.) (No such host is known.) (No such host is known.) (No such host is known.)

 ---> Azure.RequestFailedException: No such host is known.

 ---> System.Net.Http.HttpRequestException: No such host is known.

 ---> System.Net.Sockets.SocketException (11001): No such host is known.

   at System.Net.Http.ConnectHelper.ConnectAsync(String host, Int32 port, CancellationToken cancellationToken)

   --- End of inner exception stack trace ---

   at System.Net.Http.ConnectHelper.ConnectAsync(String host, Int32 port, CancellationToken cancellationToken)

   at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean allowHttp2, CancellationToken cancellationToken)

   at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)

   at System.Net.Http.HttpConnectionPool.GetHttpConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)

   at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)

   at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)

   at System.Net.Http.HttpClient.FinishSendAsyncUnbuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)

   at Azure.Core.Pipeline.HttpClientTransport.ProcessAsync(HttpMessage message)

   --- End of inner exception stack trace ---

一周前一切正常。现在我创建了新的服务计划和存储帐户(删除了旧的)并遇到了这个问题。

有什么办法可以解决吗？

Answer 1

我也遇到了同样的问题。进一步分析表明，本地 DNS 问题。如果有疑问，请跟踪提供的地址并在需要的地方在 c:\windows 中添加临时主机记录