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289d6b6f95
/api/update/check offered the update whenever client !== latest (raw string inequality, not semver) with no backoff. A device that can't APPLY the update (broken OTA client 1.7.12, signing/Fire OS) keeps reporting the same version and is told update_available=true on every poll; a fast poll loop saturates the event loop (prod loop-lag 49s). All requests share one NAT IP, so IP-keying is useless. server-only breaker (lib/ota-breaker.js), two independent axes: - RATE breaker (primary, immediate): a key checking >THRESHOLD (3) times within WINDOW (60s) is looping -> throttle update_available with exponential backoff (30s->2m->8m->cap 30m). Healthy devices poll ~12 min and never approach this, so rollout/stragglers are inherently safe -- NO grace-for-flood timer; slow == safe. - PHANTOM guard (immediate): unrecognized version, or a prerelease of an OLDER core (superseded old-minor beta e.g. 1.9.1-beta4), gets no-offer on the first check. A RECENT real older version (beta3 vs latest beta4; stable 1.7.12) stays offerable. - Never offers a downgrade (client >= latest -> no offer). KEYING (#144 option 3): keyed on device_id when present, else reported version. - server.js:581 accepts + logs ?device_id=, passes it to the breaker. - UpdateChecker.kt:122 appends &device_id=<config.deviceId> (existing registered id; omitted until provisioned). One-line client change. beta4+ clients get precise per-device throttling; stuck legacy clients sending only ?version= are caught by the version-keyed + rate + phantom logic. Response gains additive `reason` + `retry_after_seconds` (old clients ignore). BOUNDED STATE: a periodic sweep (startSweep, wired in server.js) evicts buckets idle > IDLE_RESET_MS so the keyed Map can't grow unbounded (churned device_ids); not reset-on-access only. SCOPE (deliberate): this targets the FAST flood + phantoms. The slow #144 drip (stable 1.7.12 polling ~every 12 min, ~20/hr) stays below >3/60s and is NOT throttled -- catching it needs #144 option-3 "skip-this-version after N cycles", which is intentionally NOT in this build. NOTE: carries a CLIENT/APK change -> versionCode must increment at the beta4 bump and the release keystore is required for the APK. The device_id path only helps devices that can install beta4+; the stuck legacy fleet is covered by the version-keyed path. Tests: unit (lib/ota-breaker, injected time) a-f + comparator + escalation + sweep + slow-drip-scope; HTTP integration (real endpoint, device_id passthrough). Full suite green serial AND parallel (234). OTA-only delta -- reconnect/reclaim/shed/content-ack/ block untouched. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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| app | ||
| gradle/wrapper | ||
| build.gradle.kts | ||
| gradle.properties | ||
| gradlew | ||
| gradlew.bat | ||
| settings.gradle.kts | ||