ER-TCP: an efficient fault-tolerance scheme for TCP connections

Authors:
Zhiyuan Shao;Hai Jin;Bin Cheng;Wenbin Jiang
Affiliations:
Cluster and Grid Computing Lab., School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China;Cluster and Grid Computing Lab., School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China;Cluster and Grid Computing Lab., School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China;Cluster and Grid Computing Lab., School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China
Venue:
ISPA'05 Proceedings of the Third international conference on Parallel and Distributed Processing and Applications
Year:
2005

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Abstract

This paper proposes a novel scheme, called ER-TCP, which transparently masks the failures on the server nodes in a cluster from clients at TCP connection level. Connections at the server side are actively and fully replicated to remain consistency. A log mechanism is designed to cooperate with the replication to achieve small sacrifice on the performance of communication and makes the scheme scale beyond a few nodes, even when they have different processing capacities. The scheme is justified by experiments conducted on prototype implementation.