2024-09-29 · scheduling · capacity · communication

Teaching request/limit realism without shame

By Ava Lindstrom

Requests and limits conversations turn toxic when they sound like character judgments. We anchor them in measured utilization plus scheduler events, then ask learners to narrate tradeoffs in plain language stakeholders understand.

Labs inject noisy neighbors so teams see why polite YAML still starves neighbors. The emotional beat matters: learners should feel the cluster saying no, not a mentor scolding them.

We also cover when to escalate to cloud cost ops peers versus solving purely in kube-scheduler land. Boundaries keep everyone focused on solvable slices.

Capstones include a one-page allocation brief with graphs and plain-English risks—no jargon wall, no magical thinking about infinite headroom.