Question

我们使用WCSF框架和.NET 2.0创建了一个网站。

目前，此应用程序已上线并已被超过1000个用户使用。我们已在Windows 2008 Server R2下的IIS 7中将其部署在云中。我们还使用Sql Server 2008 R2数据库作为后端。部署体系结构如下所述。

使用粘性会话在负载均衡器（基于硬件）下连接了两个Web服务器。这两个服务器与两个数据库服务器通信，其中600多个数据库均匀分布在它们之间。所有请求将首先转到管理数据库，该数据库重定向到相应的数据库服务器。

现在问题....

我们在这两台服务器中每天都会遇到大约4到5个w3wp的崩溃事件。在此期间，连接到应用程序的所有用户都将被注销。

错误应用程序名称：w3wp.exe，版本：7.5.7601.17514，时间标记：0x4ce7afa2错误模块名称：KERNELBASE.dll，版本： 6.1.7601.18229，时间戳：0x51fb1677异常代码：0xe053534f故障偏移量：0x000000000000940d故障进程id：0x％9故障应用程序启动时间：0x％10错误应用程序路径：％11错误模块路径：％12报告ID：％13

最近我们用MS开了个案，他们的评论如下。

---开始微软回复---

由于Stack Overflow问题导致进程崩溃。

.Net Call Stack：

System.Enum.System.IConvertible.ToInt64(System.IFormatProvider)
System.Convert.ToInt64(System.Object, System.IFormatProvider)
System.Enum.ToUInt64(System.Object)
System.Enum.IsDefined(System.Type, System.Object)
Microsoft.Practices.ObjectBuilder.Locator.Get(System.Object, Microsoft.Practices.ObjectBuilder.SearchMode)
Microsoft.Practices.ObjectBuilder.ReadableLocator.Get[[System.__Canon, mscorlib]](System.Object)
<Trimmed>
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)

完整调用堆栈

我们看到调用了URL： - ASP.xxxdashboards_recordlistview_aspx

ntdll!ZwTerminateProcess
KERNELBASE!TerminateProcess+2f
mscorwks!EEPolicy::HandleFatalStackOverflow+13b
mscorwks!EEPolicy::HandleStackOverflow+212
mscorwks!CLRVectoredExceptionHandler+3de1be
mscorwks!CLRVectoredExceptionHandlerShim+42
ntdll!RtlpCallVectoredHandlers+a8
ntdll!RtlDispatchException+22
ntdll!KiUserExceptionDispatch+2e
KERNELBASE!RaiseException+39
mscorwks!AllocateObject+34aeb1
mscorwks!MethodTable::FastBox+43
mscorwks!MethodTable::Box+5b
mscorwks!ReflectionEnum::InternalGetEnumValue+139
System.Enum.System.IConvertible.ToInt64(System.IFormatProvider)+b
System.Convert.ToInt64(System.Object, System.IFormatProvider)+35
System.Enum.ToUInt64(System.Object)+9d
System.Enum.IsDefined(System.Type, System.Object)+ff
Microsoft.Practices.ObjectBuilder.Locator.Get(System.Object, Microsoft.Practices.ObjectBuilder.SearchMode)+4d
Microsoft.Practices.ObjectBuilder.ReadableLocator.Get[[System.__Canon, mscorlib]](System.Object)+10
Microsoft.Practices.CompositeWeb.BuilderStrategies.SessionStateBindingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+11f
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+56
Microsoft.Practices.CompositeWeb.BuilderStrategies.SessionStateBindingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+2be
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+56
Microsoft.Practices.CompositeWeb.BuilderStrategies.SessionStateBindingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+2be
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+56
Microsoft.Practices.CompositeWeb.BuilderStrategies.SessionStateBindingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+2be
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+56
Microsoft.Practices.CompositeWeb.BuilderStrategies.SessionStateBindingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+2be
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+56
Microsoft.Practices.CompositeWeb.BuilderStrategies.SessionStateBindingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+2be

<Trimmed>

Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+56
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+28e
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+56
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+28e
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+56
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)+28e
Microsoft.Practices.CompositeWeb.ObjectBuilder.WCSFBuilderBase`1[[Microsoft.Practices.CompositeWeb.ObjectBuilder.WCSFBuilderStage, Microsoft.Practices.CompositeWeb]].DoBuildUp(Microsoft.Practices.ObjectBuilder.IReadWriteLocator, System.Type, System.String, System.Object, Microsoft.Practices.ObjectBuilder.PolicyList[])+13a
Microsoft.Practices.CompositeWeb.ObjectBuilder.WCSFBuilderBase`1[[Microsoft.Practices.CompositeWeb.ObjectBuilder.WCSFBuilderStage, Microsoft.Practices.CompositeWeb]].BuildUp(Microsoft.Practices.ObjectBuilder.IReadWriteLocator, System.Type, System.String, System.Object, Microsoft.Practices.ObjectBuilder.PolicyList[])+64
Microsoft.Practices.CompositeWeb.CompositionContainer.BuildItem(Microsoft.Practices.ObjectBuilder.IBuilder`1<Microsoft.Practices.CompositeWeb.ObjectBuilder.WCSFBuilderStage>, Microsoft.Practices.ObjectBuilder.IReadWriteLocator, System.Object)+334
Microsoft.Practices.CompositeWeb.WebClientApplication.BuildItemWithCurrentContext(System.Object)+121
Microsoft.Practices.CompositeWeb.Web.UI.UserControl.OnInit(System.EventArgs)+3f
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+8f
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+187
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+187
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+187
System.Web.UI.Control.AddedControl(System.Web.UI.Control, Int32)+10f
DevExpress.Web.ASPxTabControl.Internal.PCContentsControl.CreateControlHierarchy()+2ae
DevExpress.Web.ASPxClasses.ASPxWebControlBase.CreateChildControls()+33

<Trimmed>
System.Web.UI.Control.EnsureChildControls()+92
DevExpress.Web.ASPxClasses.ASPxWebControlBase.EnsureChildControls()+9
DevExpress.Web.ASPxClasses.ASPxWebControlBase.DevExpress.Web.ASPxClasses.Internal.IASPxWebControl.EnsureChildControls()+d
DevExpress.Web.ASPxClasses.Internal.RenderUtils.EnsureChildControlsRecursive(System.Web.UI.Control, Boolean)+3e
DevExpress.Web.ASPxClasses.Internal.RenderUtils.EnsureChildControlsRecursive(System.Web.UI.Control, Boolean)+d0
DevExpress.Web.ASPxClasses.ASPxWebControlBase.EnsureChildControlsRecursive(System.Web.UI.Control)+25
DevExpress.Web.ASPxClasses.ASPxWebControl.CreateChildControls()+166
System.Web.UI.Control.EnsureChildControls()+92
DevExpress.Web.ASPxClasses.ASPxWebControlBase.EnsureChildControls()+9
DevExpress.Web.ASPxClasses.ASPxWebControlBase.DevExpress.Web.ASPxClasses.Internal.IASPxWebControl.EnsureChildControls()+d
DevExpress.Web.ASPxClasses.Internal.RenderUtils.EnsureChildControlsRecursive(System.Web.UI.Control, Boolean)+3e
DevExpress.Web.ASPxClasses.Internal.RenderUtils.EnsureChildControlsRecursive(System.Web.UI.Control, Boolean)+d0
DevExpress.Web.ASPxClasses.ASPxWebControlBase.EnsureChildControlsRecursive(System.Web.UI.Control)+25
DevExpress.Web.ASPxClasses.ASPxWebControl.CreateChildControls()+166
System.Web.UI.Control.EnsureChildControls()+92
DevExpress.Web.ASPxClasses.ASPxWebControlBase.EnsureChildControls()+9
DevExpress.Web.ASPxClasses.ASPxWebControl.InitInternal()+48
DevExpress.Web.ASPxClasses.ASPxDataWebControlBase.OnInit(System.EventArgs)+1c
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+8f
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+187
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+187
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+187
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+187
System.Web.UI.Control.InitRecursive(System.Web.UI.Control)+187
System.Web.UI.Page.ProcessRequestMain(Boolean, Boolean)+5c5
System.Web.UI.Page.ProcessRequest(Boolean, Boolean)+a0
System.Web.UI.Page.ProcessRequest()+5b
System.Web.UI.Page.ProcessRequest(System.Web.HttpContext)+f0
ASP.xxxdashboards_recordlistview_aspx.ProcessRequest(System.Web.HttpContext)+9

我们在紧密的递归循环中看到以下代码，最终导致StackOverflow情况。

Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)
Microsoft.Practices.CompositeWeb.BuilderStrategies.ContainerAwareTypeMappingStrategy.BuildUp(Microsoft.Practices.ObjectBuilder.IBuilderContext, System.Type, System.Object, System.String)

此外，他们还增加了以下内容查看代码以查看无限循环，这里似乎是这种情况内部Microsoft_Practices_CompositeWeb！Microsoft.Practices.CompositeWeb.BuilderStrategies.SessionStateBindingStrategy

public override object BuildUp(IBuilderContext context, Type typeToBuild, object existing, string idToBuild)
{
    ISessionStateLocatorService service = context.Locator.(object);" href="http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://Microsoft.Practices.ObjectBuilder:1.0.51206.0:b03f5f7f11d50a3a/Microsoft.Practices.ObjectBuilder.IReadableLocator/Get<>(Object):"Get<ISessionStateLocatorService>(new DependencyResolutionLocatorKey(typeof(ISessionStateLocatorService), null));
    if (service != null)
    {
        IHttpSessionState sessionState = service.GetSessionState();
        foreach (FieldInfo info in typeToBuild.GetFields())
        {
            this.SetFieldValue(existing, info, sessionState);
        }
    }
    return base.BuildUp(context, typeToBuild, existing, idToBuild);
}

因此，这将调用Microsoft_Practices_ObjectBuilder中定义的BuildUp！Microsoft.Practices.ObjectBuilder.BuilderStrategy

public virtual object BuildUp(IBuilderContext context, Type typeToBuild, object existing, string idToBuild)
{
    IBuilderStrategy nextInChain = context.GetNextInChain(this);
    if (nextInChain != null)
    {
        return nextInChain.BuildUp(context, typeToBuild, existing, idToBuild);
    }
    return existing;
}

这导致无限循环。

---结束微软的回复---

我们目前不确定在哪里寻找问题，如果有人可以帮助我们解决问题，我们将非常感激。

Answer 1

我遇到类似IIS崩溃和异常代码“0xc00000fd”的问题。我建议您抓住崩溃转储。

1）安装软件以获得崩溃转储。我推荐DebugDiag Tools。

2）安装完成后，按照以下说明配置 DebugDiag工具：

选择崩溃规则选择IIS应用程序池（w3wp.exe）
选择应用程序的应用程序池
配置堆栈溢出高级设置/例外中的异常（0xc00000fd）并完成设置。

3）等待在文件夹位置创建第一个崩溃转储。例如：C：\ DebugDiag \ Logs。创建崩溃转储后，使用 DebugDiag Analysis 从C：\ DebugDiag \ Logs打开文件，并创建HTML报告。

4）在报告中，您可以快速查看页面顶部的分析摘要中的问题。在我的例子中，有一个没有停止条件的递归函数导致app轮询失败。

IIS 7 Faulting应用程序名称：w3wp.exe

1 个答案: