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Fault Tolerance Middleware for Cloud Computing

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3 Author(s)
Wenbing Zhao ; Dept. of Electr. & Comput. Eng., Cleveland State Univ., Cleveland, OH, USA ; Melliar-Smith, P.M. ; Moser, L.E.

The Low Latency Fault Tolerance (LLFT) middleware provides fault tolerance for distributed applications deployed within a cloud computing or data center environment, using the leader/follower replication approach. The LLFT middleware consists of a Low Latency Messaging Protocol, a Leader-Determined Membership Protocol, and a Virtual Determinizer Framework. The Messaging Protocol provides are liable, totally ordered message delivery service by employing a direct group-to-group multicast where the ordering is determined by the primary replica in the group. The Membership Protocol provides a fast reconfiguration and recovery service when a replica becomes faulty and when a replica joins or leaves a group. The Virtual Determinizer Framework captures ordering information at the primary replica and enforces the same ordering at the backup replicas for major sources of non-determinism. The LLFT middleware maintains strong replica consistency, offers application transparency, and achieves low end-to-end latency.

Published in:

Cloud Computing (CLOUD), 2010 IEEE 3rd International Conference on

Date of Conference:

5-10 July 2010