Efficient bittorrent-like content distribution for cloud storage services

Identificador:  TDX:2471

Handle: https://hdl.handle.net/20.500.11797/TDX2471

Autores:  Chaabouni, Rahma

Resumen:
With the ever increasing Internet traffic, peer-to-peer content distribution has emerged as an alternative to the traditional client-server model, especially with the recent bandwidth soar on the edges of the Internet. Data centers with limited bandwidth budget can benefit from the upload speed of the clients interested in the same content by introducing BitTorrent when the demand becomes high. In this thesis, we investigate the potential of using BitTorrent instead of HTTP when there are simultaneous requests of the same file. We propose an algorithm that decides which protocol is more suitable for each file transfer, and calculates the amount of data center bandwidth needed. We also propose a methodology to increase the cooperation between the clients interested in different files. All our proposals are evaluated using a trace of a Personal Cloud (Ubuntu-One), and the results show that BitTorrent can improve the performance of these systems when the cloud's available outgoing bandwidth is limited.