Hi,

From time to time (mind you not always) we get the exception mentioned in the subject. The stacktrace is below. What could cause this?

Regards Paul

[InvalidOperationException: This SqlTransaction has completed; it is no longer usable.] System.Data.SqlClient.SqlTransaction.ZombieCheck() +991813 System.Data.SqlClient.SqlTransaction.Commit() +76 Xtensive.Sql.SqlConnection.Commit() +67 Xtensive.Orm.Providers.StorageDriver.CommitTransaction(Session session, SqlConnection connection) +159

[StorageException: SQL error occured. SQL error details 'Type: Unknown;' Original message 'This SqlTransaction has completed; it is no longer usable.'] Xtensive.Core.JoiningDisposable.<dispose>b__1(Exception e) +28 Xtensive.Core.ExceptionAggregator.Execute(Action`1 action, T argument) +90

[AggregateException: A set of exceptions is caught.] Xtensive.Core.ExceptionAggregator.Dispose() +234 Xtensive.Core.JoiningDisposable.Dispose() +367 Xtensive.Core.DisposableExtensions.DisposeSafely(IDisposable disposable) +35 Xtensive.Orm.Web.<>cDisplayClass2.<providesession>b1(Boolean disposing) +97 Xtensive.Core.Disposable.Dispose(Boolean disposing) +43 Xtensive.Core.Disposable.Dispose() +36 Xtensive.Core.DisposableExtensions.DisposeSafely(IDisposable disposable) +35 Xtensive.Orm.Web.SessionManager.EndRequest(Object sender, EventArgs e) +84 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +136 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +69