System and method for stream fault tolerance through usage based duplication and shadow sessions

摘要

Embodiments of the present invention: provide, from a first VOD server having a first cache, a first media presentation to a first group of user devices and a second media presentation to a second group of user devices; provide, from a second VOD server having a second cache, a third content to a third group of user devices; measure a first popularity corresponding to the first media presentation and a second popularity corresponding to the second media presentation; store a copy of the first media presentation on the second cache based on the first popularity and the second popularity; determine when the first VOD server fails to continue to provide the first media presentation; and provide, from the second VOD server, the first media presentation to the first group of user devices, wherein the first cache has the first media presentation stored therein, and wherein the second cache has the second media presentation stored therein.