London Stock Exchange Group uses chaos engineering on AWS to improve resilience
Architecture Blog
This article discusses how London Stock Exchange Group (LSEG) used chaos engineering on AWS to improve the resilience of their cloud systems. LSEG and AWS organized a 3-day event to perform chaos engineering experiments against key workloads using AWS Fault Injection Service (FIS).
Specifically, the article covers:
- Introduction, tooling, and methodology for chaos engineering
- Architectural overview of LSEG's 3-tier application on AWS
- Failure scenarios tested using FIS, such as:
- Amazon EC2 instance and container failure
- Amazon RDS failure
- Severe network latency degradation
- Network connectivity disruption
- Amazon EBS volume failure (IOPS pause)
- Outcomes and conclusion, including architectural improvements identified and a reusable chaos engineering methodology and toolset
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