I am trying to update Sitecore 8 update 4 to update 5, but via UpdateInstallationWizard.aspx I see an error in w3wp (iis) and wizard never done. How to fix it ? I don't see any error.
Update
In the Sitecore log I see an exception related to MongoDB
ERROR Exception when executing agent processing/taskAgent Exception: Sitecore.Analytics.DataAccess.DatabaseNotAvailableException Message: Database not available Source: Sitecore.Analytics.MongoDB at Sitecore.Analytics.Data.DataAccess.MongoDb.MongoDbCollection.HandleDatabaseException(ExceptionBehavior exceptionBehavior, Exception ex) at Sitecore.Analytics.Data.DataAccess.MongoDb.MongoDbCollection.Execute(Action action, ExceptionBehavior exceptionBehavior) at Sitecore.Analytics.Data.DataAccess.MongoDb.MongoDbCollection.FindAndModify(IMongoQuery query, IMongoSortBy sortBy, IMongoUpdate update, Boolean returnNew, Boolean upsert) at Sitecore.Analytics.Processing.MongoDbTaskStorageProvider.PickFirstExclusiveTask() at Sitecore.Analytics.Processing.TaskQueue.TryGetNext(Guid taskIdBoundary, ProcessingTask& workItem) at Sitecore.Analytics.Processing.TasksAgent.Execute() at Sitecore.Analytics.Core.BackgroundService.Run()
Nested Exception
Exception: MongoDB.Driver.MongoConnectionException Message: Unable to connect to server localhost:27017: No connection could be made because the target machine actively refused it 127.0.0.1:27017. Source: MongoDB.Driver at MongoDB.Driver.Internal.DirectMongoServerProxy.Connect(TimeSpan timeout, ReadPreference readPreference) at MongoDB.Driver.Internal.DirectMongoServerProxy.ChooseServerInstance(ReadPreference readPreference) at MongoDB.Driver.MongoServer.AcquireConnection(ReadPreference readPreference) at MongoDB.Driver.MongoCollection.RunCommandAs[TCommandResult](IMongoCommand command, IBsonSerializer resultSerializer, IBsonSerializationOptions resultSerializationOptions) at MongoDB.Driver.MongoCollection.RunCommandAs[TCommandResult](IMongoCommand command) at MongoDB.Driver.MongoCollection.FindAndModify(IMongoQuery query, IMongoSortBy sortBy, IMongoUpdate update, IMongoFields fields, Boolean returnNew, Boolean upsert) at MongoDB.Driver.MongoCollection.FindAndModify(IMongoQuery query, IMongoSortBy sortBy, IMongoUpdate update, Boolean returnNew, Boolean upsert) at Sitecore.Analytics.Data.DataAccess.MongoDb.MongoDbCollection.<>c__DisplayClass2c.b__2b() at Sitecore.Analytics.Data.DataAccess.MongoDb.MongoDbCollection.Execute(Action action, ExceptionBehavior exceptionBehavior)
Nested Exception
Exception: System.Net.Sockets.SocketException Message: No connection could be made because the target machine actively refused it 127.0.0.1:27017 Source: System at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.Connect(EndPoint remoteEP) at System.Net.Sockets.TcpClient.Connect(IPEndPoint remoteEP) at MongoDB.Driver.Internal.MongoConnection.Open() at MongoDB.Driver.Internal.MongoConnection.SendMessage(BsonBuffer buffer, Int32 requestId) at MongoDB.Driver.Internal.MongoConnection.SendMessage(MongoRequestMessage message) at MongoDB.Driver.Operations.CommandOperation`1.Execute(MongoConnection connection) at MongoDB.Driver.MongoServerInstance.Ping(MongoConnection connection)
at MongoDB.Driver.MongoServerInstance.Connect() at MongoDB.Driver.Internal.DirectMongoServerProxy.Connect(TimeSpan timeout, ReadPreference readPreference)
I don't use any MongoDb, but I use SOLR in a project.