与当前连接关联的事务已完成但尚未处理。（编辑#3）

Question

我有一个允许用户创建数据库 table 和字段的应用程序。我们使用 SQL 管理 Object (SMO) (Microsoft.SqlServer.Smo) 来执行 table 更改。

更新现有 table 的代码执行以下操作：

using (System.Transactions.TransactionScope ts = new System.Transactions.TransactionScope(System.Transactions.TransactionScopeOption.Required, new TimeSpan(0, 15, 0)))
{
    using (SqlConnection sqlConnection = new SqlConnection(connectionSettings.ConnectionString))
    {
          ServerConnection serverConnection = new ServerConnection(sqlConnection);
          SMO.Server server = new SMO.Server(serverConnection);
          SMO.Database database = server.Databases[sqlConnection.Database];
          SMO.Table table = database.Tables[targetTableName];

          // perform table operations such as add new columns
    }

在试图访问 tables collection 的行中，我们收到错误： 与当前连接关联的事务已完成但尚未处理。必须在连接可用于执行 SQL 语句之前释放事务。

奇怪的是这段代码可以在我们环境和其他客户站点的 30 台不同机器上运行。但是在一个客户站点，代码会生成此错误。

我们添加了跟踪，它在调用检索 table 之前将 System.Transactions.Transaction.Current.TransactionInformation.Status 显示为活动状态。 System.Transactions.TransactionManager.MaximumTimeout 的痕迹显示 10 分钟。

客户在两台不同的机器上重复了这个问题。客户运行我们代码的旧版本并且它可以工作。

在两个版本之间，我们进行了更新以使用最新的 SQL Server 2016 SMO dll。但同样，这是在其他客户站点上工作并使用我们代码的旧版本。

将 SMO 相关的 DLLS 复制到我们的 BIN 目录中并没有解决问题。从 Nuget 更新到最新的 SMO 相关 DLLS 并没有解决问题。

问题：
关于如何确定此错误原因的任何建议？我们不确定我们在这里遗漏了什么。

编辑：这是堆栈跟踪。

at System.Data.SqlClient.SqlInternalConnectionTds.CheckEnlistedTransactionBinding()

at System.Data.SqlClient.TdsParser.TdsExecuteSQLBatch(String text, Int32 timeout, SqlNotificationRequest notificationRequest, TdsParserStateObject stateObj, Boolean sync, Boolean callerHasConnectionLock)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet)
at Microsoft.SqlServer.Management.Common.ConnectionManager.ExecuteTSql(ExecuteTSqlAction action, Object execObject, DataSet fillDataSet, Boolean catchException)
at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteWithResults(String sqlCommand)
at Microsoft.SqlServer.Management.Smo.ExecuteSql.ExecuteWithResults(String query)
at Microsoft.SqlServer.Management.Smo.ExecuteSql.Execute(StringCollection query)
at Microsoft.SqlServer.Management.Smo.ExecuteSql.ExecuteWithResults(String query, Object con)
at Microsoft.SqlServer.Management.Smo.PostProcessDatabaseInsideAttribs.InitializeRowCollection(DataProvider dp)
at Microsoft.SqlServer.Management.Smo.PostProcessDatabaseInsideAttribs.GetColumnData(String name, Object data, DataProvider dp)
at Microsoft.SqlServer.Management.Smo.DataProvider.ManipulateRowDataPostProcess()
at Microsoft.SqlServer.Management.Smo.DataProvider.GetTable()
at Microsoft.SqlServer.Management.Smo.SqlObjectBase.FillData(ResultType resultType, StringCollection sql, Object connectionInfo, StatementBuilder sb)
at Microsoft.SqlServer.Management.Smo.SqlObjectBase.FillDataWithUseFailure(SqlEnumResult sqlresult, ResultType resultType)
at Microsoft.SqlServer.Management.Smo.SqlObjectBase.BuildResult(EnumResult result)
at Microsoft.SqlServer.Management.Smo.DatabaseLevel.GetData(EnumResult res)
at Microsoft.SqlServer.Management.Sdk.Sfc.Environment.GetData()
at Microsoft.SqlServer.Management.Sdk.Sfc.Environment.GetData(Request req, Object ci)
at Microsoft.SqlServer.Management.Sdk.Sfc.Enumerator.GetData(Object connectionInfo, Request request)
at Microsoft.SqlServer.Management.Smo.ExecutionManager.GetEnumeratorDataReader(Request req)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.GetInitDataReader(String[] fields, OrderBy[] orderby)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.ImplInitialize(String[] fields, OrderBy[] orderby)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.Initialize(Boolean allProperties)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.OnPropertyMissing(String propname, Boolean useDefaultValue)
at Microsoft.SqlServer.Management.Smo.PropertyCollection.RetrieveProperty(Int32 index, Boolean useDefaultOnMissingValue)
at Microsoft.SqlServer.Management.Smo.PropertyCollection.GetPropertyObject(Int32 index)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.GetPropertyOptional(String propName)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.GetDbComparer(Boolean inServer)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.InitializeStringComparer()
at Microsoft.SqlServer.Management.Smo.AbstractCollectionBase.get_StringComparer()
at Microsoft.SqlServer.Management.Smo.SchemaCollectionBase.InitInnerCollection()
at Microsoft.SqlServer.Management.Smo.SmoCollectionBase.GetObjectByKey(ObjectKeyBase key)
at Microsoft.SqlServer.Management.Smo.TableCollection.get_Item(String name)
at UpdateForm(FormInfo updatedForm)

编辑：在测试应用程序中转载

我创建了一个测试应用程序，它也可以在多个测试环境中运行，但在客户的机器上失败。

using Microsoft.SqlServer.Management.Common;
using System;
using System.Data.SqlClient;
using System.Reflection;
using System.Transactions;
using SMO = Microsoft.SqlServer.Management.Smo;

namespace TestSMO
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine($"{"-".PadLeft(25, '-')}");
            Console.WriteLine("Test Start");

            string connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["DEFAULT"].ConnectionString;

            TraceTransactionStatus();

            TimeSpan timeSpanOption = new System.TimeSpan(0, 15, 0);

            TransactionOptions options = new TransactionOptions();
            options.IsolationLevel = IsolationLevel.ReadCommitted;
            options.Timeout = timeSpanOption;

            Console.WriteLine("  Start Transaction");
            using (System.Transactions.TransactionScope ts = new System.Transactions.TransactionScope(System.Transactions.TransactionScopeOption.Required, options))
            {
                TraceTransactionStatus();

                Console.WriteLine("  Using SQL Connection");
                using (SqlConnection sqlConnection = new SqlConnection(connectionString))
                {
                    try
                    {
                        TraceTransactionStatus();

                        Console.WriteLine("  New SQL Connection");
                        ServerConnection serverConnection = new ServerConnection(sqlConnection);
                        Console.WriteLine("  New SQL Connection...done");

                        TraceTransactionStatus();

                        Console.WriteLine("  New SMO Server");
                        SMO.Server server = new SMO.Server(serverConnection);
                        Console.WriteLine("  New SMO Server...done");

                        TraceTransactionStatus();

                        Console.WriteLine("  Access database");
                        SMO.Database database = server.Databases[sqlConnection.Database];
                        Console.WriteLine("  Access database...done");

                        TraceTransactionStatus();

                        Console.WriteLine("  Access document table");
                        SMO.Table table = database.Tables["Document"];
                        Console.WriteLine("  Access document table...done");

                        TraceTransactionStatus();
                    }
                    catch(Exception e)
                    {
                        Console.WriteLine($"{"*".PadLeft(25, '*')}");
                        Console.WriteLine($"Exception: {e.Message}");
                        Console.WriteLine($"{"*".PadLeft(25, '*')}");

                        TraceTransactionStatus();
                    }
                }

                GetAssemblies();
            }

            Console.WriteLine("Test Complete");
            Console.WriteLine($"{"-".PadLeft(25, '-')}");

            Console.WriteLine("Press enter to continue");
            Console.ReadKey();
        }

        private static void TraceTransactionStatus()
        {
            if (System.Transactions.Transaction.Current != null)
            {
                Console.WriteLine($"      Current Transaction Status: {Enum.GetName(typeof(System.Transactions.TransactionStatus), System.Transactions.Transaction.Current.TransactionInformation.Status)}");
                Console.WriteLine($"      Current Transaction Distributed ID: {System.Transactions.Transaction.Current.TransactionInformation.DistributedIdentifier}");
                Console.WriteLine($"      Current Transaction Local ID: {System.Transactions.Transaction.Current.TransactionInformation.LocalIdentifier}");
            }
            else
            {
                Console.WriteLine($"      Current Transaction Status: None");
            }
        }

        public static void GetAssemblies()
        {
            Assembly[] asms = AppDomain.CurrentDomain.GetAssemblies();
            foreach(Assembly assembly in asms)
            {
                Console.WriteLine($"{"-".PadLeft(25, '-')}");
                Console.WriteLine($"Fullname:  {assembly.FullName}");
                Console.WriteLine($"CodeBase:  {assembly.CodeBase}");
                Console.WriteLine($"ImageRTV:  {assembly.ImageRuntimeVersion}");
                Console.WriteLine($"Location:  {assembly.Location}");
            }
        }
    }
}

这是输出：

-------------------------
Test Start
      Current Transaction Status: None
  Start Transaction
      Current Transaction Status: Active
      Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
      Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
  Using SQL Connection
      Current Transaction Status: Active
      Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
      Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
  New SQL Connection
  New SQL Connection...done
      Current Transaction Status: Active
      Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
      Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
  New SMO Server
  New SMO Server...done
      Current Transaction Status: Active
      Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
      Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
  Access database
  Access database...done
      Current Transaction Status: Active
      Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
      Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
  Access document table
*************************
Exception: The transaction associated with the current connection has completed
but has not been disposed.  The transaction must be disposed before the connecti
on can be used to execute SQL statements.
*************************
      Current Transaction Status: Aborted
      Current Transaction Distributed ID: 00000000-0000-0000-0000-000000000000
      Current Transaction Local ID: 7377e927-d977-414e-b0ca-69368bb27f58:1
-------------------------
Fullname:  mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase:  file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
ImageRTV:  v4.0.30319
Location:  C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll
-------------------------
Fullname:  TestSMO, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
CodeBase:  file:///E:/testAppDir/TestApp/TestApp/TestSMO.exe
ImageRTV:  v4.0.30319
Location:  E:\testAppDir\TestApp\TestApp\TestSMO.exe
-------------------------
Fullname:  System.Transactions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase:  file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Transactions/v4.0_4.0.0.0__b77a5c561934e089/System.Transactions.dll
ImageRTV:  v4.0.30319
Location:  C:\Windows\Microsoft.Net\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll
-------------------------
Fullname:  System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase:  file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
ImageRTV:  v4.0.30319
Location:  C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll
-------------------------
Fullname:  System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
CodeBase:  file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
ImageRTV:  v4.0.30319
Location:  C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll
-------------------------
Fullname:  System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase:  file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
ImageRTV:  v4.0.30319
Location:  C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll
-------------------------
Fullname:  System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase:  file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
ImageRTV:  v4.0.30319
Location:  C:\Windows\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll
-------------------------
Fullname:  Microsoft.SqlServer.ConnectionInfo, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase:  file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.ConnectionInfo/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.ConnectionInfo.dll
ImageRTV:  v2.0.50727
Location:  C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.ConnectionInfo.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.ConnectionInfo.dll
-------------------------
Fullname:  Microsoft.SqlServer.Smo, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase:  file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.Smo/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.Smo.dll
ImageRTV:  v2.0.50727
Location:  C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.Smo.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.Smo.dll
-------------------------
Fullname:  Microsoft.SqlServer.Management.Sdk.Sfc, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase:  file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.Management.Sdk.Sfc/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.Management.Sdk.Sfc.dll
ImageRTV:  v2.0.50727
Location:  C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.Management.Sdk.Sfc.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.Management.Sdk.Sfc.dll
-------------------------
Fullname:  Microsoft.SqlServer.SqlEnum, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase:  file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.SqlEnum/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.SqlEnum.dll
ImageRTV:  v2.0.50727
Location:  C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.SqlEnum.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.SqlEnum.dll
-------------------------
Fullname:  System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase:  file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
ImageRTV:  v4.0.30319
Location:  C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll
-------------------------
Fullname:  System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
CodeBase:  file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.EnterpriseServices/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll
ImageRTV:  v4.0.30319
Location:  C:\Windows\Microsoft.Net\assembly\GAC_32\System.EnterpriseServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.dll
-------------------------
Fullname:  Microsoft.SqlServer.SqlClrProvider, Version=13.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91
CodeBase:  file:///C:/Windows/assembly/GAC_MSIL/Microsoft.SqlServer.SqlClrProvider/13.0.0.0__89845dcd8080cc91/Microsoft.SqlServer.SqlClrProvider.dll
ImageRTV:  v2.0.50727
Location:  C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.SqlClrProvider.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.SqlClrProvider.dll
-------------------------
Fullname:  System.Numerics, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
CodeBase:  file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
ImageRTV:  v4.0.30319
Location:  C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll
Test Complete
-------------------------
Press enter to continue

编辑：更多研究

我们创建了三个版本的测试应用程序。每个编译针对 SQL 管理 Objects DLL 的不同版本：v12、v13 和 v14。

v12 按预期工作。 v13 在标题中抛出异常。 v14 引发不同的异常：属性 DefaultSchema 不适用于数据库“[databaseName]”。对于此 object，此属性可能不存在，或者可能由于以下原因而无法检索足够的访问权限。

用户正在使用 Windows 身份验证进行身份验证。

用户存在于SQL服务器中并与数据库相关联。具有默认模式 [dbo].

该用户还属于 SQL 服务器中的域组，并且与数据库相关联。域组还有一个默认架构 [dbo].

我不确定这是线索还是"red herring"。

Answer 1

我们问题的解决方案（解决方法）是在客户端计算机和 SQL 服务器计算机上配置 MSDTC（Microsoft 分布式事务处理协调器）。

确保分布式事务协调器在服务中运行。
在每台机器上，打开组件服务。展开我的电脑、分布式事务协调器、本地 DTC。右键单击并查看属性。在“安全”选项卡上：启用网络 DTC、允许远程客户端、所有入站、所有出站和 select 身份验证方法。

我们的猜测是 Microsoft.SQLServer.SMO 版本 12 和 Microsoft.SQLServer.SMO 版本 13 和 14 之间发生了一些变化，将事务提升为分布式事务。版本 12 不需要 MSDTC。

注意：如果您不使用事务，或者如果您使用带有抑制选项的事务范围，代码也不会失败。

与当前连接关联的事务已完成但尚未处理。（编辑#3）

The transaction associated with the current connection has completed but has not been disposed. (edit #3)

.net

c#

sql-server

smo

transactions

与当前连接关联的事务已完成但尚未处理。 （编辑#3）

The transaction associated with the current connection has completed but has not been disposed. (edit #3)

.net

c#

sql-server

smo

transactions

与当前连接关联的事务已完成但尚未处理。（编辑#3）