Files
gitmost/apps/server
claude code agent 227 808a5c70df fix(ai): harden pre-response ECONNRESET retry — bigger budget, jittered backoff, shorter keep-alive (#310)
In prod the AI provider resets the connection pre-response (ECONNRESET); the
#175 pre-response retry recovers it, but 2 of the 3 allowed attempts were burned
in a single turn — no headroom, and one more reset would surface an error to the
user. This is tuning for resilience (not a diagnosis of who resets):

- Retry budget 2 → 4 (total 5 attempts), env-configurable via
  AI_STREAM_PRE_RESPONSE_RETRIES (0 = no retry; empty/invalid → default 4).
- Backoff: linear 150*(attempt+1) → capped exponential + full jitter
  (preResponseBackoffMs, a pure injectable helper): base 150ms, ×2 per attempt,
  capped 2000ms, delay = random in [0, capped]. Avoids a synchronized retry
  storm and spreads reconnects across the reset window.
- Keep-alive default 10_000 → 4_000 ms so undici recycles idle sockets before a
  ~5s upstream/middlebox idle cutoff can poison them (a common pre-response
  reset cause). Still env-overridable via AI_STREAM_KEEPALIVE_MS.
- .env.example documents both knobs.

Timeout (900s), RETRYABLE_CONNECT_CODES, and the instrumentation are unchanged.

refs #310

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-03 18:24:09 +03:00
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A progressive Node.js framework for building efficient and scalable server-side applications.

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Nest framework TypeScript starter repository.

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