What Is the Relationship Between a Failure Mode and a Drill Task?

A failure mode and a drill task are closely linked and building upon each other in the chaos drill system. They form a closed loop for risk identification through fault injection and capability verification through task execution.

Failure modes focus on risk assessment of cloud applications. By systematically evaluating the application architecture, dependency relationship, and potential weak points, the system can precisely identify risk scenarios that could lead to service anomalies (such as node failures, network latency, resource exhaustion). Failure modes are the core premise and basis for conducting chaos drills.

Drill tasks are the carriers for failure modes to be implemented. Based on these failure modes, individual or interconnected fault scenarios are designed and simulated. Fault injection tools (such as server outage simulation and traffic congestion injection) are then employed to replicate the corresponding risks in a controlled environment. Finally, the application's fault tolerance, auto-recovery efficiency, and the effectiveness of contingency plans are validated. This process enables the transformation of risk identification into tangible capability verification.