c# - 由 Bus.Publish() 或订阅引起的 StackOverflowException？

Question

我有一个代理，它使用传奇来跟踪给定类型的传入消息，直到收到超时消息。在超时处理程序中，我有以下内容:

public override void Timeout(object state)
        {
            // If Data.IsNull: Do nothing!!! Report to log only.
            Logger.Debug("=========================================================================");
            Logger.Debug(string.Format("Timeout message received. State: {0}.", state.ToString()));

            QuickBatch qbBuilder = new QuickBatch();
            // Create new message and publish it
            BankRequestBatchClosed eventMessage = Bus.CreateInstance<BankRequestBatchClosed>();

            eventMessage.UniqueBatchIdentifier = qbBuilder.GenerateUniqueBatchIdentifier(QuickBatch.QB_BATCHTYPE_CC);
            eventMessage.ScheduleBatchID = this.Data.ScheduleBatchID;
            eventMessage.EventDate = DateTime.Now;
            eventMessage.EventID = Guid.NewGuid();
            eventMessage.TransactionItems = this.Data.PaymentRequestedTransactionItems;

            Logger.Debug("=========================================================================");
            Logger.Debug(string.Format("Timeout method about to send BankRequestBatchClosed message. UniqueBatchIdentifier: {0}",eventMessage.UniqueBatchIdentifier));

            Bus.Publish(eventMessage);
            Complete();
        }

TransactionItems 是一个 ICollection

这是 TransactionDetail 类:

   [Serializable]
    public class TransactionDetail
    {
        // Guid needed for NHibernate to store it in database. All
        // member variables are virtual for the same reason.
        public virtual Guid Id { get; set; }
        public virtual Int32 ScheduleBatchID { get; set; }
        public virtual Int32 PseudoSagaID { get; set; }
        public virtual String CreditCardNumber { get; set; }
        public virtual String ExpiryDate { get; set; }

        public virtual String AccountNumber { get; set; }
        public virtual String BSB { get; set; }

        public virtual Decimal Amount { get; set; }
        public virtual Int32 Firm_fk { get; set; }
        public virtual String FirmName { get; set; }
        public virtual TransactionType PaymentType { get; set; }
        // transaction number, max 15 chars, to use one of the following:
        public virtual int ApplicationPaymentInfo_fk { get; set; }
        public virtual BankRequestResponseSagaBase Parent { get; set; }
    }

如果我没有任何订阅，Bus.Publish() 调用会正常进行。如果我订阅了其他服务，我会收到以下错误消息:

在 mscorlib.dll 中出现类型为“System.StackOverflowException”的未处理异常

除此之外没有关于溢出的更多信息:{无法计算表达式，因为当前线程处于堆栈溢出状态。}

我有自己的 SagaPersister、Profile 和 SagaRegistry，但不确定它们是否与这个问题相关，但如果需要可以提供。

Answer 1

这里看起来有点可疑的是 TransactionDetail 对象上的 BankRequestResponseSagaBase Parent 属性。可能是你的引用中有一个循环导致你的 saga 持久化器爆炸。