处理顺序:
- Saga 消息处理程序收到包含数据项的第一条消息。
- 消息处理程序使用具有自己的数据库事务的业务对象。
- 如果项目更新正常,数据库事务提交并且 saga 完成。
- Saga 消息处理程序接收包含数据项的第二条消息。
- 消息处理程序抛出异常,尝试打开新的数据库事务,如上所示。
错误信息:
System.Data.SqlClient.SqlException (0x80131904): Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
堆栈跟踪:
2012-01-27 14:07:47,407 [Worker.9] ERROR
LawCover.LISServices.LISBankAgent.SagaMessageHandler [(null)] - Exception details
System.Data.SqlClient.SqlException (0x80131904): Distributed transaction completed. Either enlist this session in a new transaction or the NULL transaction.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel isoLevel, Int32 timeout, SqlInternalTransaction transaction, TdsParserStateObject stateObj, Boolean isDelegateControlRequest)
at System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransactionYukon(TransactionRequest transactionRequest, String transactionName, IsolationLevel iso, SqlInternalTransaction internalTransaction, Boolean isDelegateControlRequest)
at System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransaction(TransactionRequest transactionRequest, String name, IsolationLevel iso, SqlInternalTransaction internalTransaction, Boolean isDelegateControlRequest)
at System.Data.SqlClient.SqlInternalConnection.BeginSqlTransaction(IsolationLevel iso, String transactionName)
at System.Data.SqlClient.SqlConnection.BeginTransaction(IsolationLevel iso, String transactionName)
at System.Data.SqlClient.SqlConnection.BeginTransaction()
at LawCover.LIS.DataAccess.ConnectionManager.BeginTransaction()
at LawCover.LISServices.LISBankAgent.LISMethods.AddCreditCardPaymentSettlementScheduleItemsAndReceiptsIntoLISForCurrentMessages(BankResponseFileProcessed message) in C:\Projects\LIS Improvements\LIS\Source\LISServices\LISBankAgent\LISMethods.cs:line 53
at LawCover.LISServices.LISBankAgent.SagaMessageHandler.Handle(BankResponseFileProcessed message) in C:\Projects\LIS Improvements\LIS\Source\LISServices\LISBankAgent\SagaMessageHandler.cs:line 177
上面的流程有很多代码,但我很乐意发布有用的代码。
最佳答案
我剥离了事务,发现 saga 处理程序正在打开另一个数据库连接,默认情况下,该连接已登记在 DTC 中。我在连接字符串中添加了“Enlist=false”,因为需要捕获并相应地处理数据库抛出的异常,而不是破坏分布式事务。现在它的行为符合预期。
感谢您的意见,我将重新审视代码并采纳您的意见。
关于c# - Saga 完成导致 Distributed Transaction Completed 错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9058504/