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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Amir, Y. Coan, B. Kirsch, J. Lane, J. |
| Copyright Year | 2007 |
| Description | Author affiliation: Johns Hopkins Univ., Baltimore (Amir, Y.) |
| Abstract | Constructing logical machines out of collections of physical machines is a well-known technique for improving the robustness and fault tolerance of distributed systems. We present a new, scalable replication architecture, built upon logical machines specifically designed to perform well in wide-area systems spanning multiple sites. The physical machines in each site implement a logical machine by running a local state machine replication protocol, and a wide-area replication protocol runs among the logical machines. Implementing logical machines via the state machine approach affords free substitution of the fault tolerance method used in each site and in the wide-area replication protocol, allowing one to balance performance and fault tolerance based on perceived risk. We present a new byzantine fault-tolerant protocol that establishes a reliable virtual communication link between logical machines. Our communication protocol is efficient (a necessity in wide-area environments), avoiding the need for redundant message sending during normal-case operation and allowing a logical machine to consume approximately the same wide-area bandwidth as a single physical machine. This dramatically improves the wide-area performance of our system compared to existing logical machine based approaches. We implemented a prototype system and compare its performance and fault tolerance to existing solutions. |
| Starting Page | 65 |
| Ending Page | 82 |
| File Size | 615009 |
| Page Count | 18 |
| File Format | |
| ISBN | 076952995X |
| ISSN | 10609857 |
| DOI | 10.1109/SRDS.2007.40 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-10-10 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Fault tolerance Protocols Fault tolerant systems Bandwidth Network servers Local area networks Robustness Prototypes Information systems Large-scale systems |
| Content Type | Text |
| Resource Type | Article |
| Subject | Theoretical Computer Science Computer Networks and Communications Software Hardware and Architecture |
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