State machine replication is a technique for converting an algorithm into a fault-tolerant, distributed implementation. Ad-hoc techniques may leave important cases of failures unresolved. The principled approach proposed by Lamport et al. ensures all cases are handled safely.

Minor corrections were made on 29 August 2000. Recent archaeological discoveries on the island of Paxos reveal that the parliament functioned de-spite the peripatetic propensity of its part-time legislators.

The Paxos algorithm for implementing a fault-tolerant distributed system has been regarded as difficult to understand, perhaps because the original presentation was Greek to many readers [5]. In fact, it is among the sim-plest and most obvious of distributed algorithms. At its heart is a consensus algorithm—the “synod” algorithm of [5].

Dec 22, 2024 · Leslie Lamport: The Specification Language TLA+; Computation and State Machines; A TLA+ Proof System; The Mailbox Problem; Teaching Concurrency; Vertical Paxos and Primary-Backup Replication; Computer Science and State Machines; Reconfiguring a State Machine; Stoppable Paxos; Temporal Logic: The Lesser of Three Evils

We present an algorithm, called Disk Paxos, for implementing a reli-able distributed system with a network of processors and disks. Like the original Paxos algorithm, Disk Paxos maintains consistency in the presence of arbitrary non-Byzantine faults.

Instead, I discovered the Paxos algorithm, described in this paper. At the heart of the algorithm is a three-phase consensus protocol. Dale Skeen seems to have been the first to have recognized the need for a three-phase protocol to avoid blocking in the presence of an arbitrary single failure.

The Paxos consensus algorithm can be directly extended to solve the generalized consensus problem for values in an arbitrary command structure set. Section 2 motivates our search for faster algorithms by describing some lower bounds for traditional consensus. Section 3 generalizes the traditional

May 14, 2020 · Since its first publication The part-time parliament by Leslie Lamport in 1989, Paxos has been the core of distributed consensus algorithms and is notoriously difficult to understand. This...

Fast Paxos is a fast consensus algorithm that is a variant of classic Paxos. In the normal case, learning occurs in two message delays when there is no collision and can be guaranteed to occur in three message delays even with a collision.

Jun 21, 2024 · The PAXOS consensus algorithm is a foundational algorithm in distributed computing. It was introduced by Leslie Lamport in 1989. It was designed to solve the consensus problem in the network of asynchronous processes. This article focuses on discussing the PAXOS algorithm in detail.