This white paper explains chaos testing as a discipline for strengthening system resilience by deliberately injecting unusual failures—like outages, malformed inputs, traffic spikes, or resource exhaustion—before they occur in production. By defining KPIs and an acceptable blast radius, teams observe how systems behave, validate monitoring and auto-scaling, and uncover weak points in architecture, processes, and incident response. Benefits include reduced downtime, better recovery, stronger teams, and improved customer experience. The paper outlines how to get started with tools like Gremlin, ChaosBlade, and Chaos Monkey, and shows how OpenText performance engineering solutions integrate chaos testing alongside load and performance tests to provide a comprehensive approach.

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