An Effective Failure Recovery Mechanism with Pipeline Computing in Clustered-Based VOD Servers

Dongmahn Seo, Joahyoung Lee, Dongkook Kim, Yoon Kim, and Inbum Jung “An Effective Failure Recovery Mechanism with Pipeline Computing in Clustered-Based VOD Servers”, PCM 2005, Part II, LNCS 3768, pp. 12-23, 2005.

An Effective Failure Recovery Mechanism
with Pipeline Computing in
Clustered-Based VOD Servers
Dongmahn Seo, Joahyoung Lee, Dongkook Kim,
Yoon Kim, and Inbum Jung
Department of Computer Information & Telecommunication Engineering,
Kangwon National University, Hyoja-Dong, Chunchon,
Kangwon, 200-701, Korea
{dmseo, jhlee, dkkim, yooni, ibjung}@snslab.kangwon.ac.kr
Abstract. For the actual Video-On-Demand (VOD) service environment,
we implement a cluster-based VOD server composed of general
PCs and adopt the parallel processing for MPEG movies. For the implemented
VOD server, a video block recovery mechanism is designed on
the RAID-3 and the RAID-4 algorithms. However, without considering
the architecture of cluster-based VOD server, the application of these basic
RAID techniques causes the performance bottleneck of the internal
network for recovery. To solve these problems, the new failure recovery
mechanism based on the pipeline computing concept is proposed. The
proposed method distributes the network traffics invoked by recovery operations
and utilizes the available CPU computing power of cluster nodes.