A mechanism is provided for the acquisition of a data set key prior to starting a populate. This key, referred to as the cache epoch, is obtained from cache implementation by the cache manager that is performing the populate. The returned cache epoch is kept in the cache as the new pending epoch value....http://www.google.com/patents/US20020078301?utm_source=gb-gplus-sharePatent US20020078301 - Method and apparatus for loading a cache with data with a subsequent purge of stale cache information
