Playback Dispatch and Fault Recovery for a Clustered Video System with Multiple Servers

Authors:
Ing-Jye Shyu;Shiuh-Pyng Shieh
Affiliations:
Department of Computer Science and Information Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan, R.O.C. ejshue@dscs2.csie.nctu.edu.tw;Department of Computer Science and Information Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan, R.O.C. ssp@csie.nctu.edu.tw
Venue:
Multimedia Tools and Applications
Year:
1999

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Abstract

Recent technology advances have made multimedia on-demandservices feasible. One of the challenges is to provide fault-tolerantcapability at system level for a practical video-on-demand system.The main concern on providing fault recovery is to minimize theconsumption of system resources on the surviving servers in the eventof server failure. In order to reduce the overhead on recovery, wepresent three schemes for recovering faulty playbacks through channelmerging and sharing techniques on the surviving servers. Furthermore,to evenly distribute the recovery load among the surviving servers,we propose a balanced dispatch policy that ensures load balancing inboth the normal server conditions and the presence of a serverfailure.