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Distributed Systems: The Phi Accrual Failure Detector Paper


Detecting failures is a fundamental issue for fault-tolerance in distributed systems. […]

We present a novel abstraction, called accrual failure detectors, that emphasizes flexibility and expressiveness and can serve as a basic building block to implementing failure detectors in distributed systems. Instead of providing information of a boolean nature (trust vs. suspect), accrual failure detectors output a suspicion level on a continuous scale.

The architectural difference between traditional and accrual failure detectors:

Traditional and Accrual Failure Detectors

Credit Naohiro Hayashibara, Xavier Défago Rami Yared, and Takuya Katayama

Original title and link: Distributed Systems: The Phi Accrual Failure Detector Paper (NoSQL databases © myNoSQL)