Bound each incident subscriber buffer
A slow status screen accumulates unbounded events. Cap its queue and require reset when it cannot keep up.
- Focused work estimate
- 3h + prerequisites
- Priority in the scenario
- Medium
- Engineering practice
- Backpressure · Resource management
Estimated field mix
- Performance engineering50%
- Real-time systems30%
- Site reliability20%
Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.
Review it, then add it to your workspace.
The board opens an editable draft; nothing is saved until you confirm it. Sign-in and workspace permissions apply, and Demo boards remain ephemeral.
Project context
Fictional internal status team Harbor updates operational incident cards. Build a local event log and SSE adapter; incidents and service names are invented.
Setup prerequisites
- Create synthetic incident revisions and a local append-only event stub.
- Provide controllable disconnect, replay and retention fixtures.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
- CLIVE-101 · Give live incident events stable opaque identifiers
- CLIVE-102 · Render incident status text independently of severity color
- CLIVE-103 · Apply live incident updates only to newer revisions
- CLIVE-104 · Resume incident streams from the last applied event
- CLIVE-105 · Return a reset contract when incident replay history expired
- CLIVE-106 · Join incident snapshots and streams at one watermark
Acceptance criteria
- Queue respects configured bound
- Overflow terminates with reset guidance
- Other subscribers remain independent
Implementation constraints
- Never silently discard ordered events.
Verification to include
- Stream to healthy client
- Stall client beyond queue capacity
Deliverables
- Subscriber backpressure policy
Rollout and recovery
Disconnect slow subscribers and require fresh snapshots.
Value of the work
For the engineer: Practice event projection, replay and freshness communication.
For the team: Inspect whether dashboards remain trustworthy through network interruptions.
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.