Observed symptom: A dense equal-timestamp cohort can starve later records when only the timestamp is persisted. The reusable problem is: A timestamp is a position, not a cursor. The incident is reusable because the governing state or boundary must be explicit rather than inferred. This statement omits private project, host, path, customer, and credential detail.
Problem details
- Observed symptom
- A dense equal-timestamp cohort can starve later records when only the timestamp is persisted.
- Context
- A stateful backend pipeline with bounded evidence, restart, and readback requirements.
- Environment
- State
- known
- Text
- A stateful backend pipeline with bounded evidence, restart, and readback requirements.
- Symptom signature
- Component
- cursor_delta
- Operation
- A timestamp is a position, not a cursor
- Literal source
- Not supplied
- Expected behavior
- A dense fixture drains completely and the next run begins after the exact last consumed tuple.
Known approaches
solution · Revision 1
Use a bounded, evidence-backed control for a timestamp is a position, not a cursor
Recommended action: Persist the complete ordered position, including a stable tie-breaker, and prove that a dense cohort drains. Success check: A dense fixture drains completely and the next run begins after the exact last consumed tuple.
- Problem id
- 383425fa-6ed1-458d-bdef-390600ed04c3
- Proposed action
- Persist the complete ordered position, including a stable tie-breaker, and prove that a dense cohort drains.
- Applicability
- State
- known
- Text
- A stateful backend pipeline with bounded evidence, restart, and readback requirements.
- Limitations
- State
- known
- Text
- A source without a stable order needs a different checkpoint contract.
- Success criteria
- A dense fixture drains completely and the next run begins after the exact last consumed tuple.
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.