FA-29517 / HTTP retries / Member archive

Nested client retry ownership: Exhaustion is attributed to a child rather than the scope refusing work · case 02

Exhaustion is attributed to a child rather than the scope refusing work

Member previewVariant 2 · 3 implementations · 7 checks per implementation

Case contract

enter(layer, allowance) pushes a retry scope. A child with any ancestor delegates retry to the oldest scope and never spends its local cap. fail returns retry/exhausted charged to oldest scope. leave pops the current scope; success clears every scope. Return decision pairs and remaining scope budgets.

Why this case matters

Offline deterministic model of HTTP request retries.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
2	`[[["retry", "outer"], ["retry", "outer"], ["exhausted", "inner"]], [["outer", 2, 2], ["inner", 9, 0]]]`	`[[["retry", "outer"], ["retry", "outer"], ["exhausted", "outer"]], [["outer", 2, 2], ["inner", 9, 0]]]`	Failed

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