Question

TransactionScope引发异常，我正在使用.net core 2.2

在此示例中，我首先创建TransactioScop的范围，然后为一个正常工作的数据库打开SQL事务，然后在第一个事务之后调用commit，它将提交SQL事务，然后在创建时尝试为另一个数据库打开调用事务交易系统抛出异常

为消息“此平台不支持分布式事务。”

试图删除SQL事务

c＃

using (TransactionScope scop =new TransactionScope(TransactionScopeOption.Required, TransactionScopeAsyncFlowOption.Enabled))
            {

                _db1UOW.Begin(); //creating sql transaction
                await _db1UOW.IDenialDetailsRepositorydb1.InsertDenialDetails(denialsDetails);
                await _db1UOW.IRuleDetailsRepositorydb1.InsertRulesDetails(rulesDetails);
                _db1UOW.Commit(); //commitng sql transaction

                _db2UOW.Begin(); //creating sql transaction (but while opening connection object its throwing exception as This platform does not support distributed transactions)
                await _db2UOW.IRuleDetailsRepository.GetRulesDetails();
                await _db2UOW.IDenialDetailsRepository.InsertDenialDetails(denialsDetails);
                var data = await _db2UOW.IRuleDetailsRepository.InsertRulesDetails(rulesDetails);
                _db2UOW.Commit(); //commitng sql transaction
                scop.Complete();
            }

消息

"This platform does not support distributed transactions."  at System.Transactions.Distributed.DistributedTransactionManager.GetDistributedTransactionFromTransmitterPropagationToken(Byte[] propagationToken)
   at System.Transactions.TransactionInterop.GetDistributedTransactionFromTransmitterPropagationToken(Byte[] propagationToken)
   at System.Transactions.TransactionStatePSPEOperation.PSPEPromote(InternalTransaction tx)
   at System.Transactions.TransactionStateDelegatedBase.EnterState(InternalTransaction tx)
   at System.Transactions.EnlistableStates.Promote(InternalTransaction tx)
   at System.Transactions.Transaction.Promote()
   at System.Transactions.TransactionInterop.ConvertToDistributedTransaction(Transaction transaction)
   at System.Transactions.TransactionInterop.GetExportCookie(Transaction transaction, Byte[] whereabouts)
   at System.Data.SqlClient.SqlInternalConnection.GetTransactionCookie(Transaction transaction, Byte[] whereAbouts)
   at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx)
   at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)
   at System.Data.SqlClient.SqlInternalConnectionTds.Activate(Transaction transaction)
   at System.Data.ProviderBase.DbConnectionPool.PrepareConnection(DbConnection owningObject, DbConnectionInternal obj, Transaction transaction)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.Open()

Answer 1

.NET Core不支持分布式事务，因为它在每个平台上都需要不同的事务管理器。它可能会在将来出现，但就目前而言，任何需要两个不同资源管理器的事务都将引发此异常。

您可以协调单独的交易。有两个单独的事务完成其工作，然后将它们都提交。 可能性是第一个成功，第二个失败，但是对于SQL Server，这是非常罕见的情况。像这样：

            _db1UOW.Begin(); //creating sql transaction
            await _db1UOW.IDenialDetailsRepositorydb1.InsertDenialDetails(denialsDetails);
            await _db1UOW.IRuleDetailsRepositorydb1.InsertRulesDetails(rulesDetails);

            _db2UOW.Begin(); //creating sql transaction 
            await _db2UOW.IRuleDetailsRepository.GetRulesDetails();
            await _db2UOW.IDenialDetailsRepository.InsertDenialDetails(denialsDetails);
            var data = await _db2UOW.IRuleDetailsRepository.InsertRulesDetails(rulesDetails);

            _db1UOW.Commit(); //commitng sql transaction
            try
            {
               _db2UOW.Commit(); //commitng sql transaction
            }
            catch (Exception ex)
            {
               LogError("Second transaction failed to commit after first one committed.  Administrators may need to fix stuff");
               throw;
            }

或者，如果两个数据库位于同一服务器上，则可以使用跨数据库查询将更改记录在单个SQL Server事务中。

Transactionscope引发异常，此平台在打开连接对象时不支持分布式事务

1 个答案: