带有EF CoreRSS的Microsoft.Data.SqlClient.SqlTransaction.ZombieCheck（）

Question

大家好，感谢您的提前帮助。我正在开发.Net Core 3.1 Web应用程序，该应用程序是Twilio api服务的终结点，该服务从Twilio api接收更新帖子。然后，使用EF Core将这些帖子记录到SQL Server 2012数据库中。但是，我间歇性地遇到错误：

System.InvalidOperationException：此SqlTransaction已完成；它不再可用。在Microsoft.Data.SqlClient.SqlTransaction.ZombieCheck（）在Microsoft.Data.SqlClient.SqlTransaction.Commit（）在Microsoft.EntityFrameworkCore.Storage.RelationalTransaction.Commit（）在Twilio_Secure_Endpoint.BusinessLogic.LogSMSTransaction。<> c__DisplayClass0_0。<。ctor > b__0（）在E：\ Hugh \ Documents \ Visual Studio 2019 \ Projects \ Twilio_Secure_Endpoint \ Twilio_Secure_Endpoint \ BusinessLogic \ LogSMSTransaction.cs：line 57 at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions。<> c.b__0_0（Microsoft.EntityFrameworkCore上的（Action operationScoped） .Microsoft的.Storage.ExecutionStrategy.ExecuteImplementation [TState，TResult]（Func 3 operation, Func 3 verifySucceeded，TState状态）位于Twilio_Secure_Endpoints.BusinessLogic.LogSMSt。 smsMessage）），位于E：\ Hugh \ Documents \ Visual Studio 2019 \ Projects \ Twilio_Secure_Endpoint \ Twilio_Secure_Endpoint \ BusinessLogic \ LogSMSTransaction.cs：第59行Twilio_Secure_Endpoint.Controllers.SmsController.Index（tbl_Log_SMSMessages smsMessage）

我首先尝试启用连接弹性：

    public class myContext : DbContext
{

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {

        optionsBuilder.UseSqlServer(connString, sqlServerOptionsAction: sqlOptions =>
        {
            sqlOptions.EnableRetryOnFailure(
            maxRetryCount: 15,
            maxRetryDelay: TimeSpan.FromSeconds(30),
            errorNumbersToAdd: null);

            sqlOptions.CommandTimeout((int)TimeSpan.FromMinutes(10).TotalSeconds);
        });


    }

    public DbSet<tbl_Log_SMSMessages> tbl_Log_SMSMessages { get; set; }
    public DbSet<tbl_Log_SMSUnsubscribe> tbl_Log_SMSUnsubscribe { get; set; }
    public DbSet<tbl_Log_SMSPollingMessages> tbl_Log_SMSPollingMessages { get; set; }
    public DbSet<tbl_Log_SMSValidation> tbl_Log_SMSValidation { get; set; }
}

从控制器调用的插入例程如下：

        public async Task LogSMSResponse(tbl_Log_SMSMessages smsMessage)
    {
        try
        {
            //
            //  Log to database
            using (var ctx = new myContext())
            {
                ctx.tbl_Log_SMSMessages.Add(new tbl_Log_SMSMessages()
                {
                    AccountSid = smsMessage.AccountSid,
                    ApiVersion = smsMessage.ApiVersion,
                    Body = smsMessage.Body,
                    Direction = "Incoming",
                    From = smsMessage.From,
                    FromCity = smsMessage.FromCity,
                    FromCountry = smsMessage.FromCountry,
                    FromState = smsMessage.FromState,
                    FromZip = smsMessage.FromZip,
                    MessageSid = smsMessage.MessageSid,
                    NumMedia = smsMessage.NumMedia,
                    NumSegments = smsMessage.NumSegments,
                    SmsMessageSid = smsMessage.SmsMessageSid,
                    SmsStatus = smsMessage.SmsStatus,
                    ToCity = smsMessage.ToCity,
                    ToCountry = smsMessage.ToCountry,
                    To = smsMessage.To,
                    ToState = smsMessage.ToState,
                    ToZip = smsMessage.ToZip,
                    TimeEntered = DateTime.Now
                    
                    
                }); ;

                await ctx.SaveChangesAsync();
            }

        }
        catch (Exception ex)
        {
            SendEmail sendEmail = new SendEmail("Log_SMS_Async.LogResponse Error", ex.ToString());
        }
        
    }``

然后我尝试使用transaction.commit：

    public LogSMSTransaction(tbl_Log_SMSMessages smsMessage)
    {
        //
        //  https://forums.asp.net/t/2168609.aspx?Microsoft+Data+SqlClient+SqlTransaction+ZombieCheck+with+EF+Core
        //  https://docs.microsoft.com/en-us/ef/core/miscellaneous/connection-resiliency#option-4---manually-track-the-transaction
        //
        using (var db = new myContext())
        {
            var strategy = db.Database.CreateExecutionStrategy();

            strategy.Execute(() =>
            {
                using (var context = new myContext())
                {
                    using (var transaction = context.Database.BeginTransaction())
                    {
                        context.tbl_Log_SMSMessages.Add(new tbl_Log_SMSMessages()
                        {
                            AccountSid = smsMessage.AccountSid,
                            ApiVersion = smsMessage.ApiVersion,
                            Body = smsMessage.Body,
                            Direction = "Incoming",
                            From = smsMessage.From,
                            FromCity = smsMessage.FromCity,
                            FromCountry = smsMessage.FromCountry,
                            FromState = smsMessage.FromState,
                            FromZip = smsMessage.FromZip,
                            MessageSid = smsMessage.MessageSid,
                            NumMedia = smsMessage.NumMedia,
                            NumSegments = smsMessage.NumSegments,
                            SmsMessageSid = smsMessage.SmsMessageSid,
                            SmsStatus = smsMessage.SmsStatus,
                            ToCity = smsMessage.ToCity,
                            ToCountry = smsMessage.ToCountry,
                            To = smsMessage.To,
                            ToState = smsMessage.ToState,
                            ToZip = smsMessage.ToZip,
                            TimeEntered = DateTime.Now
                        }); ;

                        context.SaveChanges();

                        transaction.Commit();
                    }
                }
            });
        }
    }

仍然出现错误。我意识到该错误消息表示某种类型的连接丢失，但不知道从这里去哪里。