I have been using ReloadFromJDBCDataModel in my project and it has been working out well for us. However, there is one problem: reloading data with ReloadFromJDBCDataModel tends to be slow. We have about 80k ratings in our DB (not a terribly large data set compared to others I reckon) and a call to refresh() can take ~10 minutes. Is this to be expected?
The slow performance is a bummer for us because our new users have the opportunity to rate a few things on our site upon sign-up right before they start asking for their first recommendations. But with such a long reload time, the users don't get to leverage the ratings they've made during the sign-up for their first recommendations (the time it takes a user to go from sign-up to first recommendation is < 30 seconds). Any tips or tricks to speed this process up? Can we somehow selectively reload data for a user? -Salil
