2 docs tagged with "reliability"

This chapter covers how to find single points of failure and multiply out availability. Dependencies in series drag availability down; parallel redundancy pulls it up. It covers standby patterns, failover time, degraded operation, and designs that don't turn performance problems into availability problems.

This chapter classifies failures into determined, indeterminate, and overload, and derives when a retry is safe from idempotency. It covers why exponential backoff needs jitter, why the ceiling is two values (attempt count and total elapsed time), and what an idempotency key guarantees.