Создание экземпляра прокси завершилось с ошибкой COMException (IIS, Windows Server 2012, NHibernate)

Question

Был запущен сайт для 4+ лет на NHibernate. Недавно мы переместили сайт на машину Windows Server 2012 и обновили NHibernate до 3.3. Примерно через месяц на новом сервере мы начали видеть следующие исключения

NHibernate.HibernateException: Creating a proxy instance failed ---> System.Runtime.InteropServices.COMException: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) 
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(RuntimeAssembly containingAssembly, Boolean emitSymbolInfo, String name, String filename, StackCrawlMarkHandle stackMark, IntPtr& pInternalSymWriter, ObjectHandleOnStack retModule, Boolean fIsTransient, Int32& tkFile) 
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternalNoLock(String name, String fileName, Boolean emitSymbolInfo, StackCrawlMark& stackMark) 
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternal(String name, String fileName, Boolean emitSymbolInfo, StackCrawlMark& stackMark) 
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(String name, String fileName, Boolean emitSymbolInfo) 

Перезапуск пула приложений решает эту проблему на некоторое время.

Это происходит примерно раз в неделю, оно влияет на разные сущности каждый раз, а другие части сайта (также использующие NHibernate) продолжают работать.

Полный StackTrace ниже:

NHibernate.HibernateException: Creating a proxy instance failed ---> System.Runtime.InteropServices.COMException: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) 
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(RuntimeAssembly containingAssembly, Boolean emitSymbolInfo, String name, String filename, StackCrawlMarkHandle stackMark, IntPtr& pInternalSymWriter, ObjectHandleOnStack retModule, Boolean fIsTransient, Int32& tkFile) 
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternalNoLock(String name, String fileName, Boolean emitSymbolInfo, StackCrawlMark& stackMark) 
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternal(String name, String fileName, Boolean emitSymbolInfo, StackCrawlMark& stackMark) 
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(String name, String fileName, Boolean emitSymbolInfo) 
at NHibernate.Proxy.DynamicProxy.DefaultProxyAssemblyBuilder.DefineDynamicModule(AssemblyBuilder assemblyBuilder, String moduleName) 
at NHibernate.Proxy.DynamicProxy.ProxyFactory.CreateUncachedProxyType(Type baseType, Type[] baseInterfaces) 
at NHibernate.Proxy.DynamicProxy.ProxyFactory.CreateProxyType(Type baseType, Type[] interfaces) 
at NHibernate.Proxy.DynamicProxy.ProxyFactory.CreateProxy(Type instanceType, IInterceptor interceptor, Type[] baseInterfaces) 
at NHibernate.Proxy.DefaultProxyFactory.GetProxy(Object id, ISessionImplementor session) 
--- End of inner exception stack trace --- 
at NHibernate.Proxy.DefaultProxyFactory.GetProxy(Object id, ISessionImplementor session) 
at NHibernate.Tuple.Entity.AbstractEntityTuplizer.CreateProxy(Object id, ISessionImplementor session) 
at NHibernate.Persister.Entity.AbstractEntityPersister.CreateProxy(Object id, ISessionImplementor session) 
at NHibernate.Event.Default.DefaultLoadEventListener.CreateProxyIfNecessary(LoadEvent event, IEntityPersister persister, EntityKey keyToLoad, LoadType options, IPersistenceContext persistenceContext) 
at NHibernate.Event.Default.DefaultLoadEventListener.ProxyOrLoad(LoadEvent event, IEntityPersister persister, EntityKey keyToLoad, LoadType options) 
at NHibernate.Event.Default.DefaultLoadEventListener.OnLoad(LoadEvent event, LoadType loadType) 
at NHibernate.Impl.SessionImpl.FireLoad(LoadEvent event, LoadType loadType) 
at NHibernate.Impl.SessionImpl.InternalLoad(String entityName, Object id, Boolean eager, Boolean isNullable) 
at NHibernate.Type.EntityType.ResolveIdentifier(Object id, ISessionImplementor session) 
at NHibernate.Type.EntityType.ResolveIdentifier(Object value, ISessionImplementor session, Object owner) 
at NHibernate.Engine.TwoPhaseLoad.InitializeEntity(Object entity, Boolean readOnly, ISessionImplementor session, PreLoadEvent preLoadEvent, PostLoadEvent postLoadEvent) 
at NHibernate.Loader.Loader.InitializeEntitiesAndCollections(IList hydratedObjects, Object resultSetId, ISessionImplementor session, Boolean readOnly) 
at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies) 
at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies) 
at NHibernate.Loader.Loader.LoadCollection(ISessionImplementor session, Object id, IType type) 
at NHibernate.Loader.Collection.CollectionLoader.Initialize(Object id, ISessionImplementor session) 
at NHibernate.Persister.Collection.AbstractCollectionPersister.Initialize(Object key, ISessionImplementor session) 
at NHibernate.Event.Default.DefaultInitializeCollectionEventListener.OnInitializeCollection(InitializeCollectionEvent event) 
at NHibernate.Impl.SessionImpl.InitializeCollection(IPersistentCollection collection, Boolean writing) 
at NHibernate.Collection.AbstractPersistentCollection.Initialize(Boolean writing) 
at NHibernate.Collection.AbstractPersistentCollection.Read() 
at NHibernate.Collection.Generic.PersistentGenericBag`1.System.Collections.Generic.IEnumerable.GetEnumerator() 
at XXX.YYY.Services.FluentMdx.Queries.PrioMatrixQuery.SetupDimensionCollector(IDimensionCollector dimensionCollector) 
at lambda_method(Closure , ControllerBase , Object[]) 
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) 
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.b__12() 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) 
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) at NHibernate.Proxy.DefaultProxyFactory.GetProxy(Object id, ISessionImplementor session) 
at NHibernate.Tuple.Entity.AbstractEntityTuplizer.CreateProxy(Object id, ISessionImplementor session) 
at NHibernate.Persister.Entity.AbstractEntityPersister.CreateProxy(Object id, ISessionImplementor session) 
at NHibernate.Event.Default.DefaultLoadEventListener.CreateProxyIfNecessary(LoadEvent event, IEntityPersister persister, EntityKey keyToLoad, LoadType options, IPersistenceContext persistenceContext) 
at NHibernate.Event.Default.DefaultLoadEventListener.ProxyOrLoad(LoadEvent event, IEntityPersister persister, EntityKey keyToLoad, LoadType options) 
at NHibernate.Event.Default.DefaultLoadEventListener.OnLoad(LoadEvent event, LoadType loadType) 
at NHibernate.Impl.SessionImpl.FireLoad(LoadEvent event, LoadType loadType) 
at NHibernate.Impl.SessionImpl.InternalLoad(String entityName, Object id, Boolean eager, Boolean isNullable) 
at NHibernate.Type.EntityType.ResolveIdentifier(Object id, ISessionImplementor session) 
at NHibernate.Type.EntityType.ResolveIdentifier(Object value, ISessionImplementor session, Object owner) 
at NHibernate.Engine.TwoPhaseLoad.InitializeEntity(Object entity, Boolean readOnly, ISessionImplementor session, PreLoadEvent preLoadEvent, PostLoadEvent postLoadEvent) 
at NHibernate.Loader.Loader.InitializeEntitiesAndCollections(IList hydratedObjects, Object resultSetId, ISessionImplementor session, Boolean readOnly) 
at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies) 
at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies) 
at NHibernate.Loader.Loader.LoadCollection(ISessionImplementor session, Object id, IType type) 
at NHibernate.Loader.Collection.CollectionLoader.Initialize(Object id, ISessionImplementor session) 
at NHibernate.Persister.Collection.AbstractCollectionPersister.Initialize(Object key, ISessionImplementor session) 
at NHibernate.Event.Default.DefaultInitializeCollectionEventListener.OnInitializeCollection(InitializeCollectionEvent event) 
at NHibernate.Impl.SessionImpl.InitializeCollection(IPersistentCollection collection, Boolean writing) 
at NHibernate.Collection.AbstractPersistentCollection.Initialize(Boolean writing) 
at NHibernate.Collection.AbstractPersistentCollection.Read() 
at NHibernate.Collection.Generic.PersistentGenericBag`1.System.Collections.Generic.IEnumerable.GetEnumerator() 
at XXX.YYY.Services.FluentMdx.Queries.PrioMatrixQuery.SetupDimensionCollector(IDimensionCollector dimensionCollector) 
at XXX.YYY.Services.FluentMdx.Queries.QueryBuilder.b__1(IDimensionCollector x) 
at XXX.YYY.Services.FluentMdx.Queries.QueryBuilder.BuildQuery(IFluentMdxFilterCommand mdxFilterQueryCommand) 
at XXX.YYY.Services.FluentMdx.FluentMdxRepository.ExecuteQuery(IMdxQueryBuilder mdxQueryBuilder) 
at XXX.YYY.Services.Result.PrioMatrixRenderService.GetChartEngine(IReadOnlyQuerySettings querySettings, ChartSettingsModel settingsModel) 
at XXX.YYY.MVC.Controllers.PrioMatrixRenderController.RenderChart(QuerySettings queryable, ChartSettingsModel chartSettings) 
at lambda_method(Closure , ControllerBase , Object[]) 
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) 
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.b__12() 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) 
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) 
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) 

Answer 1

Мы наконец-то протестировали его с другой личностью на AppPool, и с тех пор мы не видели проблемы.

Мы не знаем, что вызывает его, но изменение личности устраняет проблему.

Answer 2

http://blogs.msdn.com/b/distributedservices/archive/2009/11/06/a-com-server-application-may-stop-working-on-windows-server-2008.aspx

ли эта помощь? Другим обходным решением является отключить разгрузку профиля в пуле приложений IIS.