Vivisecting YouTube: An active measurement study

Author

Adhikari, Vijay Kumar ; Jain, Sourabh ; Chen, Yingying ; Zhang, Zhi-Li

Author_Institution

Univ. of Minnesota, Minneapolis, MN, USA

fYear

2012

fDate

25-30 March 2012

Firstpage

2521

Lastpage

2525

Abstract

We deduce key design features behind the YouTube video delivery system by building a distributed active measurement infrastructure, and collecting and analyzing a large volume of video playback logs, DNS mappings and latency data. We find that the design of YouTube video delivery system consists of three major components: a “flat” video id space, multiple DNS namespaces reflecting a multi-layered logical organization of video servers, and a 3-tier physical cache hierarchy. We also uncover that YouTube employs a set of sophisticated mechanisms to handle video delivery dynamics such as cache misses and load sharing among its distributed cache locations and data centers.

Keywords

cache storage; file servers; social networking (online); video retrieval; 3-tier physical cache hierarchy; DNS mapping; DNS namespace; YouTube; data center; distributed active measurement infrastructure; distributed cache location; flat video id space; latency data; load sharing; multilayered logical organization; video delivery system; video playback log analysis; video playback log collection; video server; Delay; Extraterrestrial measurements; Google; IP networks; Servers; Unicast; YouTube;

fLanguage

English

Publisher

ieee

Conference_Titel

INFOCOM, 2012 Proceedings IEEE

Conference_Location

Orlando, FL

ISSN

0743-166X

Print_ISBN

978-1-4673-0773-4

Type

conf

DOI

10.1109/INFCOM.2012.6195644

Filename

6195644