Azure VM 意外重启

Question

这是一个与辅助角色托管的虚拟机有关的问题。我有一个简单的辅助角色，它跨越了其中的一个流程。生成的进程是 32 位编译的 TCPServer 应用程序。辅助角色中定义了终结点，TCP服务器绑定到辅助角色的端点。因此，当我连接到我的辅助角色端点并发送一些东西时，TCPserver 会收到它，处理它返回一些东西。因此，这里向外界公开的辅助角色的端点在内部连接到TCPserver。

string port = RoleEnvironment.CurrentRoleInstance.InstanceEndpoints[""TCPsocket].IPEndpoint.Port.ToString();

            var myProcess = new Process()
            {
                StartInfo = new ProcessStartInfo(Path.Combine(localstorage.RootPath, "TCPServer.exe"))
                {
                    CreateNoWindow = true,
                    UseShellExecute = true,
                    WorkingDirectory = localstorage.RootPath,
                    Arguments = port
                }
            };

它工作正常。但突然断绝了脚步，回应道。签入门户时，VM 角色正在自动重启。但它从未成功。它显示了Role Initializing..状态。手动停止和启动也不起作用。我重新部署了相同的包，而代码没有任何更改。这次部署本身失败了。

Warning: All role instances have stopped - There was no endpoint listening at https://management.core.windows.net/<SubscriptionID>/services/hostedservices/TCPServer/deploymentslots/Production that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.

但是一段时间后，我再次尝试部署，它工作正常。谁能告诉我会有什么问题？

更新：

  public override void Run()
    {
        Trace.WriteLine("RasterWorker entry point called", "Information");
        string configVal = RoleEnvironment.GetConfigurationSettingValue("Microsoft.WindowsAzure.Plugins.Diagnostics.ConnectionString");
        CloudStorageAccount _storageAccount = null;
        _storageAccount = CloudStorageAccount.Parse(configVal); // accepts storage cridentials and create storage account
        var localstorage = RoleEnvironment.GetLocalResource("MyLocalStorage");
        CloudBlobClient _blobClient = _storageAccount.CreateCloudBlobClient();
        bool flag = false;
        while (true)
        {
            Thread.Sleep(30000);
            if (!flag)
            {
                if (File.Exists(Path.Combine(localstorage.RootPath, "test.ppm")))
                {
                    CloudBlobContainer _blobContainer = _blobClient.GetContainerReference("reports");
                    CloudBlob _blob = _blobContainer.GetBlobReference("test.ppm");
                    _blob.UploadFile(Path.Combine(localstorage.RootPath, "test.ppm"));
                    Trace.WriteLine("Copy to blob done!!!!!!!", "Information");
                    flag = true;
                }
                else
                {
                    Trace.WriteLine("Copy Failed-> File doesnt exist!!!!!!!", "Information");
                }
            }
            Trace.WriteLine("Working", "Information");
        }
    }

Answer 1

若要防止重启辅助角色，需要阻止入口点类的 Run 方法。

如果重写 Run 方法，则代码应阻止 无限期。如果 Run 方法返回，则通过引发 Stop 事件并调用 OnStop 方法自动回收角色 以便可以在角色之前执行关闭序列 离线。

http://msdn.microsoft.com/en-us/library/windowsazure/microsoft.windowsazure.serviceruntime.roleentrypoint.run.aspx

您需要确保无论发生什么情况，如果要使角色保持活动状态，则永远不会从 Run 方法返回。

现在，如果您在控制台应用程序中承载 TCPServer（我假设您在粘贴 Process.Start 代码后正在执行此操作），则需要在启动进程后阻止 Run 方法。

public override void Run()
{
   try
   {
      Trace.WriteLine("WorkerRole entrypoint called", "Information");
      var myProcess = new Process()
        {
            StartInfo = new ProcessStartInfo(Path.Combine(localstorage.RootPath, "TCPServer.exe"))
            {
                CreateNoWindow = true,
                UseShellExecute = true,
                WorkingDirectory = localstorage.RootPath,
                Arguments = port
            }
        };
        myProcess.Start();
      while (true)
      {
         Thread.Sleep(10000);
         Trace.WriteLine("Working", "Information");
      }
      // Add code here that runs in the role instance
   }
   catch (Exception e)
   {
      Trace.WriteLine("Exception during Run: " + e.ToString());
      // Take other action as needed.
   }
}

PS：这与您的部署问题无关，我认为这是巧合