.net - SQL中默认的最大事务超时是多少

Question

如果 machine.config 上不存在“system.transactions”元素，则 machine.config 中 maxTimeout 的默认值是多少(请参阅示例)？

<system.transactions>
   <machineSettings maxTimeout="??:??:??" />
</system.transactions>

我问这个问题是因为代码由于以下异常而崩溃，并且似乎与事务超出超时有关，它在 SaveChanges 方法期间崩溃，并且我的异常m 接收内容如下:

The transaction associated with the current connection has completed
but has not been disposed. The transaction must be disposed before
the connection can be used to execute SQL statements.

这是崩溃的代码片段:

using (TransactionScope transaction = TransactionHelper.CreateTransactionScope())
{
    using (EFContext efDBContext = new EFContext())
    {
        try
        {
            efDBContext.Connection.Open();  

            foreach (MyEntity currentEntity in myEntities)
            {
                //Insertion
            }

            transaction.Complete();
        }
        catch (Exception ex)
        {
            //Inspect current entity
            //Get Total Time of the run
            //Number of entities processed
        }
        finally
        {
            if (esfDBContext.Connection.State == ConnectionState.Open)
                esfDBContext.Connection.Close();
        }
    }
}

这就是我创建 TransactionScope 的方式:

public static TransactionScope CreateTransactionScope(TransactionScopeOption option = TransactionScopeOption.Required, IsolationLevel isolationLevel = IsolationLevel.ReadCommitted)
{
    var transactionOptions = new TransactionOptions()
    {
        Timeout = TimeSpan.MaxValue,
        IsolationLevel = isolationLevel
    };

    return new TransactionScope(option, transactionOptions);
}

Answer 1

默认 = 10 分钟。最大值 = Infinity