A protocol description language for customizing failure semantics

Abstract
To optimize performance in a fault-tolerant distributed system, it is often necessary to enforce different failure semantics for different components. By choosing a custom set of failure semantics for each component and then by enforcing the semantics with a minimal set of protocols for a particular architecture, performance may be maximized while ensuring the desired system behavior. We have developed DIL, a language for specifying, on a per-component basis, protocols that transparently enforce failure semantics. These protocols may be reused with arbitrary components, allowing the development of a library of protocols.<>

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