Number of mentors to use

Set <eng_instance_name>.db.engine.tune.num_mentors to the maximum number of mentors to assign to a given user. The default is 50. For example:
movie_pref.db.engine.tune.num_mentors = 60

If you do not set this parameter, then the Preference Engine uses the value set for <mentor_set>.max_mentors = <number>.