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arXiv · 2210.02695

Different Perspectives on FLP Impossibility

Ivan Klianev
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Abstract

We demonstrate termination of binary consensus under the model and conditions used by Fischer, Lynch, and Patterson (FLP) to prove impossibility of binary agreement - in complete asynchrony and a possible process crash - in two steps. First, we introduce a new paradigm for consensus termination and show that impossibility of agreement is not evidence for impossibility to terminate. Next, we present a consensus algorithm that ensures termination with agreement about the initial input from the processes.

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Ivan Klianev. 2022-10-06. Different Perspectives on FLP Impossibility. https://arxiv.org/abs/2210.02695

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