是否有可能阻止MassTransit運行時服務需要DTC？

Question

我開始使用MassTransit並需要使用RuntimeServices來管理訂閱和超時。我正在安裝的環境是一個使用防火牆的外部網絡。

當前將安裝RuntimeServices的應用程序服務器，並且SQL Server沒有打開允許分佈式事務處理協調器（DTC）正常工作的RPC端口。

我得到的完整例外如下，但重要的部分看起來像是System.Transactions.TransactionException: The operation is not valid for the state of the transaction.。由於DTC未配置，我不認爲交易正在進行。

雖然我應該可以要求打開正確的端口，但我不願意這麼做，因爲我並不擔心爲此目的進行的交易。所以理想情況下，我想告訴MassTransit，或者是nHibernate，我不需要分佈式事務。

順便說一句，我的MS消息隊列是非事務性的。

任何幫助，歡迎與感謝， 羅布

完整異常堆棧跟蹤：

MassTransit.Context.ServiceBusReceiveContext-'System.Action'1[[MassTransit.IConsumeContext, MassTransit, Version=2.6.416.0, Culture=neutral, PublicKeyToken=null]]' threw an exception consuming message 'MassTransit.Context.ReceiveContext' NHibernate.Exceptions.GenericADOException: could not execute query [ select subscripti0_.CorrelationId as Correlat1_1_, subscripti0_.CurrentState as CurrentS2_1_, subscripti0_.ControlUri as ControlUri1_, subscripti0_.DataUri as DataUri1_ from dbo.SubscriptionClientSaga subscripti0_ where subscripti0_.CurrentState=? ] Name:p1 - Value:Active (State) [SQL: select subscripti0_.CorrelationId as Correlat1_1_, subscripti0_.CurrentState as CurrentS2_1_, subscripti0_.ControlUri as ControlUri1_, subscripti0_.DataUri as DataUri1_ from dbo.SubscriptionClientSaga subscripti0_ where subscripti0_.CurrentState=?] ---> System.Transactions.TransactionException: The operation is not valid for the state of the transaction. at System.Transactions.TransactionState.EnlistVolatile(InternalTransaction tx, IEnlistmentNotification enlistmentNotification, EnlistmentOptions enlistmentOptions, Transaction atomicTransaction) at System.Transactions.Transaction.EnlistVolatile(IEnlistmentNotification enlistmentNotification, EnlistmentOptions enlistmentOptions) at NHibernate.Transaction.AdoNetWithDistributedTransactionFactory.EnlistInDis tributedTransactionIfNeeded(ISessionImplementor session) at NHibernate.Impl.AbstractSessionImpl.EnlistInAmbientTransactionIfNeeded() at NHibernate.Impl.AbstractSessionImpl.CheckAndUpdateSessionStatus() at NHibernate.Impl.SessionImpl.get_Batcher() at NHibernate.Loader.Loader.GetResultSet(IDbCommand st, Boolean autoDiscoverTypes, Boolean callable, RowSelection selection, ISessionImplementor session) at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies) at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies) at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters) --- End of inner exception stack trace --- at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters) ... (elided for brevity!) ...

Answer 1

事務被自動提升爲DTC在某些情況下：http://msdn.microsoft.com/en-us/library/ms131083.aspx

你一定要避免從發生 - 它殺死的性能，選項：

• 訂閱服務不是資源密集型的，在本地託管其數據庫 。
• 評估用於信息消費的範圍，看是否可以如使用MSMQ酌減
• ，而不是使用訂閱服務的組播
• 考慮使用RabbitMQ的替代 - 沒有訂閱服務所需

https://groups.google.com/forum/?fromgroups#!forum/masstransit-discuss是您可以在這裏快速獲得MassTransit的幫助。

乾杯， ET。