为什么Azure WebJob无法连接到Azure SQL，说“存储帐户是不受支持的类型'Blob-Only / ZRS'。支持的类型是'通用'？

Question

所以我有一个Azure Web应用程序，它是一个带有Entity Framework的ASP.NET MVC应用程序。它使用Azure SQL数据库。我需要定期（每天一次）调查金融市场汇率编号并将其插入数据库中。我为两个市场利率民意调查创建了两个WebJobs（一个需要在市场开放后运行，另一个需要在收市后），并安排它们。

为了测试我手动通过Azure门户触发它们，我在日志中收到以下错误：

[08/25/2018 22:28:43 > a6e3be: ERR ] Unhandled Exception: System.InvalidOperationException: Storage account 'blabla' is of unsupported type 'Blob-Only/ZRS'. Supported types are 'General Purpose'
[08/25/2018 22:28:43 > a6e3be: ERR ]    at Microsoft.Azure.WebJobs.Host.Storage.StorageAccountExtensions.AssertTypeOneOf(IStorageAccount account, StorageAccountType[] types)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at Microsoft.Azure.WebJobs.Host.Executors.DefaultStorageAccountProvider.<CreateAndValidateAccountAsync>d__24.MoveNext()
[08/25/2018 22:28:43 > a6e3be: ERR ] --- End of stack trace from previous location where exception was thrown ---
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at Microsoft.Azure.WebJobs.Host.Executors.DefaultStorageAccountProvider.<TryGetAccountAsync>d__25.MoveNext()
[08/25/2018 22:28:43 > a6e3be: ERR ] --- End of stack trace from previous location where exception was thrown ---
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at Microsoft.Azure.WebJobs.Host.Executors.JobHostConfigurationExtensions.<CreateJobHostContextAsync>d__1.MoveNext()
[08/25/2018 22:28:43 > a6e3be: ERR ] --- End of stack trace from previous location where exception was thrown ---
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at Microsoft.Azure.WebJobs.JobHost.<InitializeHostAsync>d__44.MoveNext()
[08/25/2018 22:28:43 > a6e3be: ERR ] --- End of stack trace from previous location where exception was thrown ---
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at Microsoft.Azure.WebJobs.JobHost.<CallAsyncCore>d__37.MoveNext()
[08/25/2018 22:28:43 > a6e3be: ERR ] --- End of stack trace from previous location where exception was thrown ---
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at Microsoft.Azure.WebJobs.JobHost.Call(MethodInfo method)
[08/25/2018 22:28:43 > a6e3be: ERR ]    at MarketRatePreviousCloseWebJob.Program.Main() in C:\Users\Csaba\Documents\BlablaSrc\MarketRatePreviousCloseWebJob\Program.cs:line 20
[08/25/2018 22:28:43 > a6e3be: SYS INFO] Status changed to Failed
[08/25/2018 22:28:43 > a6e3be: SYS ERR ] Job failed due to exit code -532462766

我无法理解这一点。 SQL Azure数据库是正常的，有些表有blob列，但没有MarketRates表。尝试访问数据库的代码：

string connectionString = "Copy of the the Azure SQL connection string";
SqlConnection sqlConnection = new SqlConnection(connectionString);

string selectStatement = "SELECT MAX(Id) FROM BlaBla.dbo.MarketRates";
SqlCommand selectCmd = new SqlCommand(selectStatement, sqlConnection);
sqlConnection.Open();
var id = (int)selectCmd.ExecuteScalar();
sqlConnection.Close();

string insertStatement = "INSERT INTO BlaBla.dbo.MarketRates(Id, Type, Rate, Date) " +
    "VALUES(@Id, @Type, @Rate, @Date)";
SqlCommand insertCmd = new SqlCommand(insertStatement, sqlConnection);

var now = DateTime.Now;
insertCmd.Parameters.Add("@Id", SqlDbType.Int);
insertCmd.Parameters.Add("@Type", SqlDbType.VarChar, 64);
insertCmd.Parameters.Add("@Rate", SqlDbType.Float);
insertCmd.Parameters.Add("@Date", SqlDbType.DateTime);
insertCmd.Parameters["@Id"].Value = id + 1;
insertCmd.Parameters["@Type"].Value = rateType;
insertCmd.Parameters["@Rate"].Value = rate;
insertCmd.Parameters["@Date"].Value = now.Date;

sqlConnection.Open();
insertCmd.ExecuteNonQuery();
sqlConnection.Close();

Answer 1

“存储帐户是不受支持的类型'Blob-Only / ZRS'。支持的类型是'通用'？

看来你正在使用带有Azure webjob的blob storage account。请尝试更改AzureWebJobsStorageconnection字符串另一个通用storage account连接。

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另外，在您的WebJob的AzureWebJobsDashboard开头填写AzureWebJobsStorage和app.settings连接字符串和通用存储帐户的连接字符串。