Saravanakumar D
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4468a69526
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feat(fleet): tunable scoring weights + preemption (Phase 3 Slice 1)
- Add FleetWeightRegistry + resolveWeights() for per-product/per-request
weight tunability with defaults fallback (backward compatible)
- Add selectPreemptionVictim() pure function: only critical jobs may
trigger, never evicts equal/higher priority, picks lowest-priority victim
- Wire preemption into coordinator behind FLEET_PREEMPTION flag (default OFF)
- Seat-limit enforcement: at seatLimit factories skip normal selection and
attempt preemption of lower-priority running jobs for critical newcomers
- Eviction preserves checkpoint, bumps leaseEpoch (fences zombie), requeues
- 18 new tests (pure scheduler + coordinator integration)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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2026-05-30 09:49:23 -07:00 |
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