OWIN - '/'アプリケーションのサーバーエラー

Question

OK、このMVC5 Webサイトでは、クレームIDを使用しています。

OWINがこの厄介なエラー例外：私は手動で「ビン」と「objのフォルダ、ウェブサイトの作品のすべてを削除した場合

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

を。

問題は、このエラーが、時折、展開時に発生することです。

SQL Serverは問題なく100％動作します。 これはOWINのもので、これが原因です。

私は過去にこの問題があったことを覚えていますが、私が修正したことを思い出すことはできません。

ここでフルスタックトレースです：\ WINDOWS \ System32に\ inetsrvに\ configおよび変更setProfileEnvironment：

[SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, DbConnectionPool pool, String accessToken, Boolean applyTransientFaultHandling) +1385
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) +1091
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions) +70
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) +981
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) +114
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +1590
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource 1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +156
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource 1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +268
System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource 1 retry, DbConnectionOptions userOptions) +314
System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource 1 retry) +204
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource 1 retry) +245 System.Data.SqlClient.SqlConnection.Open() +130
System.Data.Entity.Infrastructure.Interception.InternalDispatcher 1.Dispatch(TTarget target, Action 2 operation, TInterceptionContext interceptionContext, Action 3 executing, Action 3 executed) +98
System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.Open(DbConnection connection, DbInterceptionContext interceptionContext) +509
System.Data.Entity.SqlServer.<>c__DisplayClass33.<UsingConnection>b__32() +566 System.Data.Entity.SqlServer.<>c__DisplayClass1.<Execute>b__0() +15
System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Func 1 operation) +237
System.Data.Entity.SqlServer.SqlProviderServices.UsingMasterConnection(DbConnection sqlConnection, Action 1 act) +913
System.Data.Entity.SqlServer.SqlProviderServices.CreateDatabaseFromScript(Nullable 1 commandTimeout, DbConnection sqlConnection, String createDatabaseScript) +117
System.Data.Entity.SqlServer.SqlProviderServices.DbCreateDatabase(DbConnection connection, Nullable 1 commandTimeout, StoreItemCollection storeItemCollection) +211
System.Data.Entity.Migrations.Utilities.DatabaseCreator.Create(DbConnection connection) +134
System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase) +174
System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration) +116
System.Data.Entity.Internal.DatabaseCreator.CreateDatabase(InternalContext internalContext, Func 3 createMigrator, ObjectContext objectContext) +121 System.Data.Entity.Database.Create(DatabaseExistenceState existenceState) +292
System.Data.Entity.CreateDatabaseIfNotExists 1.InitializeDatabase(TContext context) +187
System.Data.Entity.Internal.InternalContext.PerformInitializationAction(Action action) +71
System.Data.Entity.Internal.InternalContext.PerformDatabaseInitialization() +482 System.Data.Entity.Internal.RetryAction 1.PerformAction(TInput input) +174
System.Data.Entity.Internal.LazyInternalContext.InitializeDatabaseAction(Action 1 action) +273
System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +38
System.Data.Entity.Internal.Linq.InternalSet 1.Initialize() +77
System.Data.Entity.Internal.Linq.InternalSet 1.get_InternalContext() +21 System.Data.Entity.Internal.Linq.InternalSet 1.FindAsync(CancellationToken cancellationToken, Object[] keyValues) +69
System.Data.Entity.DbSet 1.FindAsync(CancellationToken cancellationToken, Object[] keyValues) +46
System.Data.Entity.DbSet 1.FindAsync(Object[] keyValues) +19
Microsoft.AspNet.Identity.EntityFramework.d__6c.MoveNext() +198 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +62 Microsoft.AspNet.Identity.CultureAwaiter`1.GetResult() +48 Microsoft.AspNet.Identity.Owin.<b__1>d__4.MoveNext() +828 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +62
Microsoft.Owin.Security.Cookies.d__2.MoveNext() +2534 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +62
Microsoft.Owin.Security.Infrastructure.d__0.MoveNext() +823 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +62
Microsoft.Owin.Security.Infrastructure.d__0.MoveNext() +333
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +62 Microsoft.AspNet.Identity.Owin.d__0.MoveNext() +450 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +62 Microsoft.AspNet.Identity.Owin.d__0.MoveNext() +450 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +62 Microsoft.AspNet.Identity.Owin.d__0.MoveNext() +450 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +62
Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.d__5.MoveNext() +203 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +62
Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.d__2.MoveNext() +193 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +31 Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.StageAsyncResult.End(IAsyncResult ar) +119
System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +365 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +134

Answer 1

あなたは、次の...

編集通常はCで見つかったのApplicationHost.configを試みることができます本当に。

<applicationPoolDefaults managedRuntimeVersion="v4.0"> 
    <processModel identityType="ApplicationPoolIdentity" loadUserProfile="true" setProfileEnvironment="true" /> 
</applicationPoolDefaults> 

Answer 2

問題が見つかりました。 Startup.csのこれらの3行。

私はそれらをコメントアウトしており、それに応じて動作します。

// Configure the db context, user manager and signin manager to use a single instance per request 
app.CreatePerOwinContext(ApplicationDbContext.Create); 
app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create); 
app.CreatePerOwinContext<ApplicationSignInManager>(ApplicationSignInManager.Create);