Readiness Probe Failure Modes

Bad readiness probes break things. The modes.

Flapping

Probe passes/fails rapidly. Pod cycles in/out of endpoints.

Tune timeout and threshold.

Dependent

Readiness checks downstream service.

Cascading: downstream down → all pods unready.

Design

Readiness should reflect this pod's readiness, not dependencies.

Liveness/readiness for self only.