MVC3内存不足异常

Question

在部署了一个有Telerik扩展菜单的MVC3应用程序后，我注意到有几次它会抛出一个OutOfMemoryException，之后应用程序就会冻结，直到大约一个小时后才能使用该应用程序。

我设法跟踪了windows事件日志中的错误，下面是从事件日志中提取的其中一个错误的堆栈跟踪

异常信息：

Exception type: OutOfMemoryException 
Exception message: Exception of type 'System.OutOfMemoryException' was thrown.
at System.RuntimeTypeHandle.ConstructName(RuntimeTypeHandle handle, 
Boolean nameSpace, Boolean fullInst, Boolean assembly, StringHandleOnStack retString)
at System.RuntimeType.RuntimeTypeCache.ConstructName(String& name, Boolean nameSpace, Boolean fullinst, Boolean assembly)
at System.RuntimeType.get_Name()
at Telerik.Web.Mvc.Infrastructure.Implementation.ControllerTypeCache.<GetAllControllerTypes>b__d(Type type)
at System.Linq.Enumerable.WhereArrayIterator`1.MoveNext()
at Telerik.Web.Mvc.Extensions.CollectionExtensions.AddRange[T](ICollection`1 instance, IEnumerable`1 collection)
at Telerik.Web.Mvc.Infrastructure.Implementation.ControllerTypeCache.GetAllControllerTypes()
at Telerik.Web.Mvc.Infrastructure.Implementation.ControllerTypeCache.<GetControllerTypesWithinNamespaces>b__4()
at Telerik.Web.Mvc.Infrastructure.Implementation.Cache.Get[T](String key, Func`1 defaultValueFactory)
at Telerik.Web.Mvc.Infrastructure.Implementation.ControllerTypeCache.GetControllerTypesWithinNamespaces(String controllerName, IEnumerable`1 namespaces)
at Telerik.Web.Mvc.Infrastructure.Implementation.ControllerTypeCache.GetControllerTypes(String controllerName)
at Telerik.Web.Mvc.Infrastructure.Implementation.ControllerDescriptorCache.ControllerDescriptorFactory(String controllerName, String areaName)
at Telerik.Web.Mvc.Infrastructure.Implementation.ControllerDescriptorCache.<>c__DisplayClass1.<GetControllerDescriptor>b__0()
at Telerik.Web.Mvc.Infrastructure.Implementation.Cache.Get[T](String key, Func`1 defaultValueFactory)
at Telerik.Web.Mvc.Infrastructure.Implementation.ControllerDescriptorCache.GetControllerDescriptor(String controllerName, String areaName)
at Telerik.Web.Mvc.Infrastructure.Implementation.AuthorizationContextCache.AuthorizationContextFactory(RequestContext requestContext, String controllerName, String actionName, String areaName)
at Telerik.Web.Mvc.Infrastructure.Implementation.AuthorizationContextCache.<>c__DisplayClass1.<GetAuthorizationContext>b__0()
at Telerik.Web.Mvc.Infrastructure.Implementation.Cache.Get[T](String key, Func`1 defaultValueFactory)
at Telerik.Web.Mvc.Infrastructure.Implementation.AuthorizationContextCache.GetAuthorizationContext(RequestContext requestContext, String controllerName, String actionName, RouteValueDictionary routeValues)
at Telerik.Web.Mvc.Infrastructure.Implementation.ControllerAuthorization.IsAccessibleToUser(RequestContext requestContext, String controllerName, String actionName, RouteValueDictionary routeValues)
at Telerik.Web.Mvc.Infrastructure.Implementation.NavigationItemAuthorization.IsAccessibleToUser(RequestContext requestContext, INavigatable navigationItem)
at Telerik.Web.Mvc.UI.NavigatableExtensions.<>c__DisplayClass2`1.<IsAccessible>b__1(T item)
at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
at Telerik.Web.Mvc.UI.NavigatableExtensions.IsAccessible[T](IEnumerable`1 items, INavigationItemAuthorization authorization, ViewContext viewContext)
at Telerik.Web.Mvc.UI.NavigationItemContainerExtensions.WriteItem[TComponent,TItem](TItem item, TComponent component, IHtmlNode parentTag, INavigationComponentHtmlBuilder`1 builder)
at Telerik.Web.Mvc.UI.Menu.<>c__DisplayClass4.<WriteHtml>b__3(MenuItem item)
at Telerik.Web.Mvc.Extensions.EnumerableExtensions.Each[T](IEnumerable`1 instance, Action`1 action)
at Telerik.Web.Mvc.UI.Menu.WriteHtml(HtmlTextWriter writer)
at Telerik.Web.Mvc.UI.ViewComponentBase.Render()
at Telerik.Web.Mvc.UI.ViewComponentBuilderBase`2.Render()
at ASP._Page_Views_Shared__Layout_cshtml.Execute() in e:\kidda\Views\Shared\_Layout.cshtml:line 34
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at System.Web.WebPages.WebPageBase.<>c__DisplayClass7.<RenderPageCore>b__6(TextWriter writer)
at System.Web.WebPages.HelperResult.WriteTo(TextWriter writer)
at System.Web.WebPages.WebPageBase.Write(HelperResult result)
at System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body)
at System.Web.WebPages.WebPageBase.PopContext()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
at System.Web.Mvc.Controller.ExecuteCore()
at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext)
at System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext)
at System.Web.Mvc.MvcHandler.<>c__DisplayClass6.<>c__DisplayClassb.<BeginProcessRequest>b__5()
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass1.<MakeVoidDelegate>b__0()
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End()
at System.Web.Mvc.MvcHandler.<>c__DisplayClasse.<EndProcessRequest>b__d()
at System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f)
at System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action)
at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

在堆栈跟踪中，与所有错误堆栈跟踪相同的是_Layout.cshtml中的第34行，它使用以下代码绘制菜单

<nav>
    <div id="topMenu" >
        <div style="width: 45%; float: right">
             @{ Html.Telerik().Menu()
                 .Name("Menu")
                 .Items(menu =>
                  {
                      menu.Add()
                        .Text("Ngaari")
                        .Items(item =>
                        {
                            item.Add().Text("List").Action("Index", "Ngaari");
                            item.Add().Text("Statement").Action("Index", "Statement");
                        });
                      menu.Add()
                        .Text("Njia")
                        .Action("Index", "Njia");
                      menu.Add()
                        .Text("Kiama")
                        .Action("Index", "Kiama");
                      menu.Add()
                        .Text("Ngaari Type")
                        .Action("Index", "NgaariType");
                      menu.Add()
                        .Text("Admin")
                        .Items(item =>
                        {
                            item.Add().Text("List Users").Action("Index", "Account");
                            item.Add().Text("Add User").Action("NewUser", "Account");
                            item.Add().Text("Change Password").Action("ChangePassword", "Account");
                        });
                })
                .Render();
              }
        </div>
    </div>
</nav>

这个应用程序运行在Windows2003 SP2上，它有4 4Gb的内存，用户使用Mozilla Firefox访问系统。

我已经在Telerik论坛和SOF中搜索过了，没有找到答案，也没有找到可能有类似问题的类似用户。

是什么导致了这个错误?我该如何着手解决它？

Answer 1

已通过监视服务器上的性能和内存使用情况解决此问题。我意识到IIS正在与SQL Server争用内存，而内存并未频繁回收，这就是导致问题的原因

根据IIS 6 Administration的建议，我执行了以下操作：

• 将应用程序池设置为在预设数量的请求后回收
• 设置在低活动时间回收工作进程的次数
• 对应用程序

使用的虚拟和物理内存量设置上限

执行上述操作已经完全消除了这个问题。