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Hans-Arno Jacobsen

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Open access Sep 2026

Towards socio-cyber-physical systems: a software perspective amid AI breakthroughs

Software technology is undergoing a paradigm shift driven by two converging trends. First, the scope of software responsibility has expanded significantly: as “software-defined everything” becomes a reality, software has evolved into the integration core of sociocyber-physical systems (SCPSs). Second, the capabilities...

Assia Belbachir, M. Blake, Jin-Song Dong et al. · 0 citations
Book Open access Sep 2026

When Log Parsing Removes What Matters: Detecting Failures in Distributed GPU Workloads

Large AI models increasingly rely on distributed GPU execution, yet it remains unclear whether established anomaly detection methods transfer effectively to this setting. We introduce GF-Bench, a PyTorch-based framework and dataset for generating controlled failures in distributed GPU workloads. The framework supports...

Bo-Yuan Cui, Yu-Yang Zeng, Yi-Fang Tian et al. · 0 citations
Book Open access Oct 2026

AgentChaosBench: Benchmarking External Fault Detection and Localization in Agentic Systems

Reliability in LLM-based agentic systems is a property of the whole execution (its tool calls, model calls, guardrails, and inter-agent messages), not of the final answer alone, yet evaluating only task outcomes reveals little about how or why a run fails. We present AgentChaosBench, a benchmark for detecting and local...

Chen-Kai Zhang, Yi-Ran Li, Yi-Fang Tian et al. · 0 citations
#artificial intelligence Preprint Sep 2026

SRE-Marathon: A Continuous, Change-Driven Benchmark for Autonomous Site Reliability Agents

This work presents SRE-Marathon, a benchmark for long-horizon, continuous SRE operation, where an agent is invoked at a fixed cadence with cumulative alert history and a persistent workspace while operating a live two-zone Kubernetes deployment as a fault orchestrator injects overlapping faults according to a seeded, p...

Yi-Fang Tian, Ying-Jian Bai, Yi-Feng He et al. · 0 citations
Preprint Aug 2026

ORCA: Observability-Grounded Program Repair for Microservice Incidents

Results show that operational telemetry can be transformed from diagnostic evidence into actionable repair context: paired telemetry supports repair-oriented localization, while repair graph agents convert localized code and configuration evidence into constrained patch-generation context for the LLM.

Yuan-Chen Gao, Yi-Fang Tian, Yi-Ran Li et al. · 1 citation
Jul 2026

Fugue: Online Elasticity for Distributed Stateful Stream Processing

Fugue is a novel, self-contained reactive protocol that provides seamless and resource-efficient elasticity and reaches comparable handover performance while avoiding continuous replication overhead, and is implemented in Apache Flink.

Yu-Qiu Zhang, Yun-Hao Mao, Hans-Arno Jacobsen · 0 citations
Preprint Aug 2026

When Agentic Executions Fail: Detecting and Localizing Runtime Faults from Telemetry

AGENTCHAOSBENCH is presented, a benchmark for detecting and localizing runtime faults in agentic systems from their execution telemetry, and its held-out labels and compact prediction format support reproducible comparison of LLM-based and non-LLM diagnosis methods.

Chenkai Zhang, Yiran Li, Yifang Tian et al. · 0 citations
Book Open access Jul 2026

Krysha: Cost-Efficient Resource Orchestration for Geo-Distributed Serverless Microservices

Krysha is presented, an adaptive orchestration framework that jointly optimizes function scheduling and resource allocation for geo-distributed serverless microservices and can achieve up to 74.7% cost savings in scaled deployments compared to state-of-the-art alternatives while maintaining SLO requirements.

Yuqiu Zhang, Hans-Arno Jacobsen · 0 citations

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