Transactionscope 超时最大值仅为 10 分钟

Question

我无法修改客户端上的 machine.config

嵌套事务中有没有其他方法可以让它们持续超过 10 分钟？隔离级别或任何其他选项是否有助于解决超时问题。我的内部事务DoWork()很好，我认为是外部事务超时了。

private void DoAllWork()
{
    using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required, TransactionManager.MaximumTimeout))
    {
        DoWork();
        scope.Complete();   
    }
}
private void  DoWork()
{
    Foreach(Some long running loop)
    {   
        using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required, TransactionManager.MaximumTimeout))
        {
            // Entity Framework queries / modification / Save Changes
            scope.Complete();   
        }
    }
}

Answer 1

我遇到过同样的问题 。您需要在 machine.config 中更改它。这些设置不起作用。但是更改 machine.config 并不好，所以我像这样解决了它。我所做的是在运行时获取事务管理器对象并更新其值，它对我有用。

   public TransactionScope CreateTransactionScope(TimeSpan timeout)
    {
        SetTransactionManagerField("_cachedMaxTimeout", true);
        SetTransactionManagerField("_maximumTimeout", timeout);

          var transactionScopeOptions = new TransactionOptions
            {
                IsolationLevel = IsolationLevel.ReadUncommitted,
                Timeout = timeout
            };

        return new TransactionScope(TransactionScopeOption.RequiresNew, transactionScopeOptions);
    }


      private void SetTransactionManagerField(string fieldName, object value)
    {
        typeof(TransactionManager).GetField(fieldName, BindingFlags.NonPublic | BindingFlags.Static).SetValue(null, value);
    }

我这样使用它

          using (var scope = CreateTransactionScope(TimeSpan.FromMinutes(50)))
            {
        // do something 
        scope.Complete();


        }
        catch (Exception e)
        {
            new Logger().LogException(e);


        }