Facebook is heavily
dependent on centralized U.S. data centers to
provide consistent service to users all over the
world. Therefore, users outside the United
States experience slow response time. Also, a lot
of unnecessary traffic is generated on the Internet
backbone. Wittie et al. [8] investigate the
detailed causes of these two problems and identify
mitigation opportunities. It is found that
OSN state is amenable to partitioning, and its
fine-grained distribution and processing can significantly
improve performance without loss in
service consistency. Based on simulations of
reconstructed Facebook traffic over measured
Internet paths, it is shown that user requests can
be processed 79 percent faster and use 91 percent
less bandwidth. Therefore, the partitioning
of OSN state is an attractive scaling strategy for
OSN service providers.