Leases: An Efficient Fault-Tolerant Mechanism for Distributed File Cache Consistency

  title={Leases: An Efficient Fault-Tolerant Mechanism for Distributed File Cache Consistency},
  author={Cary G. Gray and David R. Cheriton},
Caching introduces the overhead and complexity of ensuring consistency, reducing some of its performance benefits. In a distributed system, caching must deal with the additional complications of communication and host failures. Leases are proposed as a time-based mechanism that provides efficient consistent access to cached data in distributed systems. Non-Byzantine failures affect performance, not correctness, with their effect minimized by short leases. An analytic model and an evaluation for… CONTINUE READING
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