20 results for “Understanding of distributed systems and fault tolerance concepts”
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This paper introduces Epistemic Byzantine Fault Tolerance (EBFT), a fault-tolerance model for agentic infrastructure and post-deterministic distributed systems, addressing the Honest Quorum Problem an…
The paper introduces Post-Deterministic Distributed Systems (PDDS) as a new model to coordinate autonomous infrastructure where participants, including stochastic agents, produce divergent reasoning p…
The authors resolve the contradiction between deterministic crash-tolerant consensus in a fully asynchronous environment and the FLP impossibility result by demonstrating that one protocol phase separ…
This paper develops distributive laws for parallel composition in a rely/guarantee style theory for reasoning about concurrent programs.
This paper presents an automated verification technique for safety properties of affine distributed protocols with an unbounded number of actors.
The paper details significant enhancements to the SONARR system's core logic, replacing restrictive Boolean logic with generic data type support and adding multi-compute capabilities to improve vulner…
This paper proposes a framework for functional stability in edge computing systems, focusing on individual functions and their quality thresholds.
Mikhail L. Arbuzov, Lee Mosbacker, Sisong Bei, Ziwei Dong +2 more
The paper reframes LLM reliability from an impossible universal problem to a manageable, local patch-based problem, showing that sufficient interventions can be found by focusing on recurring failure…
This paper proves that a strongly consistent solution to the Causal Observability Problem is unachievable at the observable boundary and explores the impact of instrumentation placement on monitor gua…
This paper introduces a new distributed computational model called the uniform port model, which allows for efficient self-stabilizing algorithms for local symmetry breaking problems on general graphs…
This paper introduces SequenceFI, a non-intrusive framework for temporal fault injection in microservice systems, which observes message-level events, synthesizes temporal guards from traces, and achi…
Hai Duc Nguyen, Bogdan Nicolae, Tekin Bicer, Amal Gueroudji +3 more
This paper presents two techniques, dynamic checkpointing and progress-aware load redistribution, to maintain forward progress and balanced execution in real-time scientific workflows using the produc…
Xiang Liu, Sa Song, Zhaowei Zhang, Huiying Lan +5 more
The paper introduces Agora, a domain-aware multi-agent framework that successfully detects deep, previously unknown logic bugs in complex consensus protocols, outperforming existing LLM-based analysis…
This tutorial explores advances and challenges in deploying large language model-based agentic systems across industries, with a focus on reasoning and planning, multi-agent coordination, and evaluati…
This paper proposes a method for verifying functional correctness of message-passing concurrent programs using Constrained Horn Clause (CHC) solving.
This paper provides a systematic survey of ROS 2 middleware and identifies architectural limits through three dimensions: Space, Time, and State.
The paper introduces Tofu, a generalizable tool that automatically performs rigorous channel fault analysis on distributed protocols, synthesizing attack traces or proving their absence for given LTL…