Content distribution network supporting popularity-based caching

摘要

A content delivery network may provide content items to requesting devices using a popularity-based distribution hierarchy. A central analysis system may determine popularity data for a content item stored in a first caching device. At a later time, the central analysis system may determine that a change in the popularity data is beyond a threshold value. The central analysis system may then transmit an instruction to move the content item from the first caching device to a second caching device in a different tier of caching devices than the first caching device. The central analysis system may update a content index to indicate that the content item has been moved to the second caching device. A user device may then be redirected to request the content item directly from the second caching device.

主权项

1. A method comprising:
determining, by a computing device, popularity data for a content item stored in a first caching device in a first tier of a hierarchy of caching devices; determining, by the computing device, that the popularity data is beyond a threshold value; transmitting, by the computing device, an instruction to move the content item from the first caching device to a second caching device in a second tier of the hierarchy of caching devices after at least a portion of the content item has been transmitted from the first caching device to a user device, wherein the second tier is different from the first tier; updating, by the computing device, a content index to indicate that the content item has been moved to the second caching device; and transmitting, by the computing device, the content index to the user device before the content item has been fully transmitted to the user device.