I have a question regarding the user profile service. It is more functional question.
The question is how many users can the user profile service handle?
By this i mean, lets say i have a sharepoint website and like 500 users are simultaniously surfing on it. And the page needs often to retrieve the user profiles and the different properties from them, can it fail at a point, i mean not all the users will get the proper details to see, but empty or corrupted?
I have a problem that (maybe) on high load of the website sometimes a code being executed, which shouldn't be. So with other words the retrieved properties are empty or wrong. We can't reproduce the error.
I made a multi threading app which simulated 300-500 users (threads) and at 300 threads i started to recieve errors:
System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached. at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.Office.Server.Data.SqlSession.OpenConnection() at Microsoft.Office.Server.Data.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior, SqlQueryData monitoringData, Boolean retryForDeadLock) at Microsoft.Office.Server.Data.SqlSession.ExecuteReader(SqlCommand command, Boolean retryForDeadLock) at Microsoft.Office.Server.UserProfiles.UserProfile.RetrieveUser(String strAcct, Guid gAcct, Byte bSid, Nullable`1 recordId, Boolean doNotResolveToMasterAccount, Boolean loadFullProfile) at Microsoft.Office.Server.UserProfiles.UserProfile.get_Item(String strPropName) at OverloadTool.Executor.GetUPManager()
So can i from this conclude that 300 people who are activly surfing will also get some wrong data? Is there on msdn some info about that? Or any sites which explain this behaviour? Or sharepoint cant handle so many users?