A proactive recovery scheme based on service migration for long-running Byzantine fault-tolerant systems is described. Proactive recovery is an essential method for ensuring the long-term reliability of fault-tolerant systems that are under continuous threats from malicious adversaries. The primary benefit of our proactive recovery scheme is a reduced vulnerability window under normal operation. This is achieved in two ways. First, the time-consuming reboot step is removed from the critical path of proactive recovery. Second, the response time and the service migration latency are continuously profiled and an optimal service migration interval is dynamically determined during runtime based on the observed system load and the user-specified availability requirement.
Article
Proactive Service Migration for Long-Running Byzantine Fault-Tolerant Systems
IET Software
Document Type
Article
Publication Date
4-1-2009
Disciplines
Abstract
DOI
10.1049/iet-sen.2008.0065
Version
Postprint
Publisher's Statement
© The Institution of Engineering and Technology 2009
Citation Information
Zhao, W. W., & Zhang, H. H. (2009). Proactive service migration for long-running Byzantine fault-tolerant systems. IET Software, 3(2), 154-164. doi:10.1049/iet-sen.2008.0065