docs(tasks): decompose review-002 into 24 tasks (23 implementation + 1 bracketed follow-up)
Decomposition of docs/reviews/002-post-remediation-review.md per its 5-unit remediation plan: - Unit 1 (security-critical): gw15-publish-body-cap, prj16-schema-via-call (CF-004 filed alkcall-side), fwd13-dot-segments, fwd16-missing-capability, oai11-ref-memoization - Unit 2 (timeout/terminality): ws13-idle-progress, fwd15-stream-timeout, cli01-retry-after-budget, con17-mcp-pagination, con18-wss-sweep-exit - Unit 3 (projection/docs): projection-truthfulness, mcp-batch-cap, gw16-status-drift - Unit 4 (spec-import): yaml-normalization, oai13-path-item-wildcards, import-loudness-cluster, js01-placeholder-check, fwd17-19-contract-decisions - Unit 5 (WS polish + tests): con18b-ws-polish, client-policy-wire-tests, cov-deployment-knobs, cov13-dead-code, srv11-srv12-router-ordering - review-002-bracketed-followup: tentatively planned post-bulk pass (stale-check, OQA-18 enforcement decision, CON-08/09 close() lever, cross-crate re-checks) — deliberately not serialized against the bulk Also: review-002 numbering repair (CON-14 was double-booked; MCP pagination now CON-14, from_wss monitor renumbered CON-18, missing CON-14 section added). taskgraph: 66 valid, no cycles; 24 pending (all review-002); gen-1/gen-2 parallel waves identified; workflow-cost hotspots are prj16 (12.8) and ws13 (11.1), both carrying the reviewed slicing guidance in their Notes.
This commit is contained in:
@@ -0,0 +1,70 @@
|
||||
---
|
||||
id: review-002-cli01-retry-after-budget
|
||||
name: Budget-aware Retry-After sleep — stop re-arming a full ceiling per attempt (CLI-01)
|
||||
status: pending
|
||||
depends_on: []
|
||||
scope: narrow
|
||||
risk: medium
|
||||
impact: component
|
||||
level: implementation
|
||||
tags: [client, review-002]
|
||||
---
|
||||
|
||||
## Description
|
||||
|
||||
Review 002 CLI-01 [major]. The `Retry-After` middleware sleeps outside
|
||||
the retry budget and re-arms a full ceiling on every throttled retry —
|
||||
middleware order is `RetryGateMiddleware` **outside**
|
||||
`RetryAfterMiddleware` (`http_client.rs:511-520`), so every retry
|
||||
attempt re-enters `RetryAfterMiddleware::handle`:
|
||||
|
||||
1. attempt 1 → `429` + `Retry-After: 300` → deadline recorded `t₀+300`
|
||||
2. reqwest-retry sleeps ≤ 2 s, retries
|
||||
3. attempt 2 re-sleeps until `t₀+300` (inside maybe_sleep_for), gets a
|
||||
fresh `429` → deadline **re-armed to `t₀+302`** (a full new 300 s)
|
||||
4. … for up to `max_retries` more → ~15 min wall time inside one
|
||||
`forward()` call
|
||||
|
||||
`TotalRetryBudget` gates only its own backoff sleeps; the 30 s request
|
||||
timeout never covers this window (the sleep happens before the reqwest
|
||||
request is constructed, so the timer never starts).
|
||||
|
||||
## Acceptance Criteria
|
||||
|
||||
- [ ] `maybe_sleep_for` is budget-aware: caps the sleep by the
|
||||
remaining `max_total_retry_duration` (check inside the sleep —
|
||||
the pending sleeps, clamped, or checks-and-skips when the budget
|
||||
is spent; implementer's choice, but a deadline that would extend
|
||||
past the budget must be truncated to it)
|
||||
- [ ] Re-arm clamp: `record_if_throttled` keeps the *earliest* deadline
|
||||
(or otherwise does not extend past the first-seen deadline for
|
||||
the same URL within one logical request) — a retry storm cannot
|
||||
push the wall clock out ceiling-per-attempt
|
||||
- [ ] Wire test: counting responder that always answers
|
||||
`429`/`Retry-After: N` with the test's ceiling set small → the
|
||||
caller's total wall time is bounded by max_total_retry_duration
|
||||
+ one attempt's request time (assert the bound, not the exact
|
||||
count)
|
||||
- [ ] The per-URL deadline map semantics for *separate* logical
|
||||
requests are unchanged (a fresh request still honors the
|
||||
recorded throttle window — that feature stays)
|
||||
- [ ] Fix the misspelled test name `malware_records_under_the_effective_url` while touching the file
|
||||
- [ ] `cargo test`, `cargo clippy --all-targets -- -D warnings`,
|
||||
`cargo fmt --check` pass
|
||||
|
||||
## References
|
||||
|
||||
- docs/reviews/002-post-remediation-review.md (Part D', CLI-01)
|
||||
- src/client/http_client.rs:511-520 (stack order), 370-395 (TotalRetryBudget), src/client/retry_after.rs:44-62 (ceiling), :127-211 (record/maybe_sleep)
|
||||
- tasks/client/review-001-client-timeout-retry.md (the Retry-After machinery)
|
||||
- tasks/client/review-002-client-policy-wire-tests.md (the counting-responder seam this test family shares)
|
||||
|
||||
## Notes
|
||||
|
||||
Keep the semantics decision narrow: the goal is "one logical request's
|
||||
Retry-After waits are bounded by the retry budget," NOT changing the
|
||||
cross-request throttle map (FWD-11's eviction/jitter behavior is
|
||||
already fixed and correct). The natural seam is threading the budget
|
||||
handle into the middleware order so RetryAfter sees it — small,
|
||||
testable, no public API change (the budget is already a
|
||||
`HttpClientConfig` field).
|
||||
Reference in New Issue
Block a user