Streaming Video Encoding & Packaging Pipeline · View 18 of 22 · Operations
Cost is an operational signal here
- At 40 PB/day of egress, the ladder decision has an hourly price. Cost per source hour and cost per delivered hour sit beside latency and pass rate because they are controls, not accounting.
- The JIT share of spend is the single number that says whether the eviction policy is tuned correctly.
Two alarms that are unusual
- "Supplier silent 24 h" — an absence of deliveries is indistinguishable from health to a monitor that only watches for failures.
- "Nearest-rung fallback rate" — the fallback is a correct behaviour, so it will never page anyone unless it is explicitly measured.
What is audited rather than logged
- Recipe overrides with actor and reason, gate waivers, swaps, rollbacks and takedowns go to the append-only audit log. Key ids are recorded; keys never appear in any signal.
