Leader Election Using NewSQL Database Systems

Niazi, Salman and Ismail, Mahmoud and Berthou, Gautier and Dowling, Jim (2015) Leader Election Using NewSQL Database Systems. In: DisCoTec 2015: The 10th International Federated Conference on Distributed Computing Techniques, 2-5 June 2015, Inria Grenoble – Rhône-Alpes, FRANCE.

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Leader election protocols are a fundamental building block for replicated distributed services. They ease the design of leader-based coordination protocols that tolerate failures. In partially synchronous systems, designing a leader election algorithm, that does not permit multiple leaders while the system is unstable, is a complex task. As a result many production systems use third-party distributed coordination services, such as ZooKeeper and Chubby, to provide a reliable leader election service. However, adding a third-party service such as ZooKeeper to a distributed system incurs additional operational costs and complexity. ZooKeeper instances must be kept running on at least three machines to ensure its high availability. In this paper, we present a novel leader election protocol using NewSQL databases for partially synchronous systems, that ensures at most one leader at any given time. The leader election protocol uses the database as distributed shared memory. Our work enables distributed systems that already use NewSQL databases to save the operational overhead of managing an additional third-party service for leader election. Our main contribution is the design, implementation and validation of a practical leader election algorithm, based on NewSQL databases, that has performance comparable to a leader election implementation using a state-of-the-art distributed coordination service, ZooKeeper.

Item Type:Conference or Workshop Item (Paper)
ID Code:5821
Deposited By:Salman Niazi
Deposited On:28 Apr 2015 16:33
Last Modified:19 Jul 2016 15:11

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