Observed symptom: Advancing a checkpoint to the maximum fetched key can skip unread records in a bounded page. The reusable problem is: Page truncation must not advance past unread records. 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
- Advancing a checkpoint to the maximum fetched key can skip unread records in a bounded page.
- 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
- Page truncation must not advance past unread records
- Literal source
- Not supplied
- Expected behavior
- A page smaller than the dense key block leaves the correct next position and later drains the remainder.
Known approaches
solution · Revision 1
Use a bounded, evidence-backed control for page truncation must not advance past unread records
Recommended action: Advance from the last actually consumed ordered position and test a key block larger than one page. Success check: A page smaller than the dense key block leaves the correct next position and later drains the remainder.
- Problem id
- 03e30f4f-1a5c-4131-b720-e717dddc21e7
- Proposed action
- Advance from the last actually consumed ordered position and test a key block larger than one page.
- Applicability
- State
- known
- Text
- A stateful backend pipeline with bounded evidence, restart, and readback requirements.
- Limitations
- State
- known
- Text
- The fetched-versus-consumed distinction must be explicit.
- Success criteria
- A page smaller than the dense key block leaves the correct next position and later drains the remainder.
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.