Fault-tolerant architectures for continuous media servers
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Design of Fault-Tolerant Large-Scale VOD Servers: With Emphasis on High-Performance and Low-Cost
IEEE Transactions on Parallel and Distributed Systems
Scalable routing strategies for ad hoc wireless networks
IEEE Journal on Selected Areas in Communications
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Media server of the MMSC(Multimedia Message Service Center) offers a function that converts sound and image for various types of handsets. MMS Relay requests a media type and format conversion and the media server handles this conversion. When MMS Relay requests a media conversion, a workload scheduler makes the job distributed properly and processed by several media servers. Since the whole system load can be distributed evenly, the performance of MMS system can be improved. The stability and the reliability are provided. In this paper, we propose and implement a workload scheduler in which jobs are processed distributively by monitoring the weights of the jobs in each media server. The weights are assigned to the jobs according to the conversion time. Also, we guarantee a fault tolerance capability of media server to retransmit the jobs fast when fault happens by monitoring the active/ idle states and executing the processes.