Data Management

Dynamic Load-Balancing Based on a Coordinator and Backup Automatic Election in Distributed Systems

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Executive Summary

In a distributed system environment it is likely that some nodes are heavily loaded while others are lightly loaded or even idle. It is desirable that the work-load is fully distributed among all nodes so as to utilize the processing time and optimize the whole performance. A load-balancing mechanism decides where to migrate a process and when. This paper introduces the load-balancing mechanism as a new scheme to support the reliability and to increase the overall throughput for distributed systems environment. The idea is to assign one node as a coordinator in addition to a backup node, with the possibility of automatic election in case both coordinator and backup fail. The presented scheme has been integrated into a Zap system.

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