Reject stale configuration revisions arriving at the edge gateway
Delayed delivery overwrites a newer brightness schedule. Compare monotonic desired revisions before applying.
- Focused work estimate
- 2h 45m + prerequisites
- Priority in the scenario
- High
- Engineering practice
- Ordering · Idempotency
Estimated field mix
- Distributed systems60%
- Embedded and edge40%
Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.
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Project context
Fictional information-display gateways receive brightness schedules and cache limits. These settings affect only a software display emulator; no real devices, safety controls or customer data are used.
Setup prerequisites
- Define synthetic configuration schema and supported device capabilities.
- Implement local control-plane and gateway adapters with delayed messages.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
Acceptance criteria
- Newer revision may apply
- Older revision is rejected
- Equal matching revision replays safely
Implementation constraints
- Reused revision with different payload is a conflict.
Verification to include
- Deliver increasing revisions
- Deliver old or conflicting revision
Deliverables
- Revision guard and ordering cases
Rollout and recovery
Request a fresh authoritative snapshot on conflict.
Value of the work
For the engineer: Practice desired/reported state, compatibility and rollback.
For the team: Inspect whether remote configuration preserves working settings through offline and partial outcomes.
Evidence boundaries
Outcome Evidence: Tests, patches, and runbooks are requested deliverables. They become Outcome Evidence only through a qualified Mission and immutable Evidence IDs.
Ownership Evidence: Independent adaptation must be observed under a declared verification policy and cite immutable Evidence IDs. Completing a planning ticket establishes no Ownership Evidence.