Application-level observability for adaptive Edge to Cloud continuum systems
Kaddour Sidi, Daniel Balouek, Baptiste Jonglez
TL;DR
The paper addresses the challenge of maintaining performance objectives in heterogeneous Edge-to-Cloud (E2C) systems by proposing an application-level observability framework that pairs developer-driven instrumentation with an SLO-aware feedback loop. The approach combines OpenTelemetry, Prometheus, K3s, and Chaos Mesh to enable fine-grained monitoring and autonomous adaptation at both infrastructure and application levels, demonstrated through a video-processing use case. Key contributions include an end-to-end observability pipeline with metric scalability, a two-stage feedback mechanism (Status and Causes Inference; Reconfiguration and Resolution), and the ability to add or redefine metrics at runtime. Preliminary results show improved scalability, fault tolerance, and responsiveness, with application-specific metrics such as frame rate and appearance rates guiding adaptive actions to preserve latency, throughput, and accuracy in dynamic workloads. Overall, the work provides a practical pathway toward resilient, self-optimizing E2C continuum applications that can operate with reduced human intervention in real-world deployments.
Abstract
Modern Edge-to-Cloud (E2C) systems require fine-grained observability to ensure adaptive behavior and compliance with performance objectives across heterogeneous and dynamic environments. This work introduces an application-level observability framework that integrates developer-driven instrumentation and SLO-aware feedback for autonomous adaptation. By combining OpenTelemetry, Prometheus, K3s, and Chaos Mesh, the framework enables real-time monitoring and adaptive control across the continuum. A video processing use case demonstrates how application-level metrics guide automatic adjustments to maintain target frame rate, latency, and detection accuracy under variable workloads and injected faults. Preliminary results highlight improved scalability, fault tolerance, and responsiveness, providing a practical foundation for adaptive, SLO-compliant E2C applications.
