In the paper on Coral CDN, Freeman shares the design, success and challenges of the CoralCDN System partially in consideration for building and/or managing similar CDN systems in future.

He mentions that the system was not suited for accessing unpopular content and that an eviction policy was used in evicting content from proxies. I would have liked him to share more on this policy – to explain what benchmark is used to determine that content is unpopular and how long is such content cached before eviction.

The paper on Giant scale devices basically shares the ideas explained in chapter 1 of the course textbook. That is, scalability, availability and fault tolerance being required for an efficient distributed system.

Osezua.