Formal Verification of Lockless Data Structures Using TLA⁺
This article walks through modeling lock‑free queues and stacks in TLA⁺, proving safety and liveness, and offers practical tips for scaling verification to production code.
TLA+
Building Resilient Systems with Formal Methods and TLA+
A practical guide to using TLA+ for designing fault‑tolerant systems, covering theory, tooling, and real‑world examples.
Formal Verification of Distributed Consensus Protocols Using TLA+ for High Availability Systems
Introduction High‑availability (HA) systems are the backbone of modern digital services—think online banking, cloud storage, or real‑time collaboration tools. At the heart of most HA architectures lies a distributed consensus protocol: a set of rules that enable a cluster of nodes to agree on a single source of truth despite failures, network partitions, and asynchrony. Even a single subtle bug in a consensus algorithm can lead to data loss, split‑brain scenarios, or prolonged outages. Traditional testing (unit tests, integration tests, chaos engineering) can uncover many defects, but it can never exhaustively explore the infinite state space of a concurrent, partially‑synchronous system. ...