我们使用 WCSF 框架和 .NET 2.0 创建了一个网站。
目前,该应用程序已上线并被 1000 多名用户使用。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。部署架构如下所述。
在负载均衡器(基于硬件)下使用粘性会话连接了两个 Web 服务器。这两台服务器与两台数据库服务器通信,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,该数据库重定向到适当的数据库服务器。
现在到这个问题......
我们在两台服务器上每天都会遇到大约 4 到 5 次 w3wp 崩溃。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,时间戳:0x4ce7afa2 错误模块名称:KERNELBASE.dll,版本:6.1.7601.18229,时间戳:0x51fb1677 异常代码:0xe053534f 错误偏移:0x000000000000940d 错误进程9 错误应用程序启动时间:0x%10 错误应用程序路径:%11 错误模块路径:%12 报告 ID:%13
最近我们与 MS 建立了一个案例,他们的评论如下。
---开始微软回应---
由于堆栈溢出问题,该进程崩溃。
.Net 调用堆栈:
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)
完整的调用堆栈
我们看到调用是针对 URL 进行的:- 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,他们还添加了以下内容。
查看代码以查看无限循环,这似乎是
Microsoft_Practices_CompositeWeb!Microsoft.Practices.CompositeWeb.BuilderStrategies.SessionStateBindingStrategy 内部的情况
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);
}
所以这会调用 Microsoft_Practices_ObjectBuilder!Microsoft.Practices.ObjectBuilder.BuilderStrategy 中定义的 BuildUp
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,我们将不胜感激。