Cross-System Interaction Failures: Don't Fail through the Cracks
Tuesday, 10 November 2026, 11:00 to 11:45 · Main hall · seats 400
Modern cloud systems are orchestrated by many independent and interacting subsystems, each specializing in important services such as scheduling, data processing and storage, resource management, etc. Hence, overall cloud system reliability is determined not only by the reliability of each individual subsystem, but also by the interactions between them. With recent practices of microservice and serverless architectures, each individual subsystem becomes simpler and smaller, while their interactions grow in complexity and diversity. We observe that many recent production incidents of large-scale cloud systems are manifested through failures of the interactions across system boundaries, which we term "cross-system interaction failures", or "CSI failures". However, understanding and addressin
Larisa Kladochniy
Research Scientist at Jane Street
Larisa Kladochniy is a Research Scientist at Jane Street, working on databases and migrations. They have shipped and operated production systems for the last decade and are bringing a war story or two to this stage.