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This answer covers “[AI-007] AI requests receive 429 and build up”. Read it with the summary and confirm that the symptom and service match what you are experiencing. Available options can vary by plan and account setup.
- Before changing anything, note what you expected, what happened and roughly when. Check whether the issue affects one page or the whole service.
- Save the full error message and note recent changes. Hide passwords, access codes, personal data and keys before sharing screenshots or logs.
- If a step requires administrator access, restarting services or editing server files, stop if you do not administer that server. Send support the service name, error and checks you have already made.
L3 technical diagnosis
User symptoms
A bursty automation triggers 429 responses, synchronised retries and growing delays.
Observed code or message
HTTP `429 Too Many Requests`; `Retry-After` presentLikely root cause
Concurrency exceeds requests-per-minute, tokens-per-minute or project quota. Immediate retries from many workers create a retry storm and can consume remaining quota.
Likely-cause and resolution matrix
Follow a branch only when evidence supports it. A symptom may have more than one cause; do not change layers by guesswork.
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Prerequisites
- Authorised access to the involved runtime, provider or automation.
- A test environment and synthetic data; never use customer prompts for diagnostics.
- A technical owner who can approve network, secret, GPU or resource changes.
Important warnings
- Do not expose local inference endpoints or webhooks without appropriate authentication, TLS and limits. Never put API keys, private prompts or personal data in commands, screenshots or logs.
- Commands are diagnostic references. Production changes, Docker/firewall rules and credential rotation require service-owner authorisation.
Step-by-step walkthrough
1. Confirm the symptom and scope
curl -sS -D /tmp/model-headers.txt -o /tmp/model-error.json --max-time 30 "${MODEL_API_BASE}/v1/models"
grep -iE '^(HTTP/|retry-after:|x-request-id:)' /tmp/model-headers.txt
rm -f /tmp/model-headers.txt /tmp/model-error.jsonHTTP `429 Too Many Requests`; `Retry-After` present
2. Correct the responsible component
3. Verify and close exposure
The check confirms the expected result without exposing services or data.
Troubleshooting & Solutions
HTTP `429 Too Many Requests`; `Retry-After` present
Root cause: Concurrency exceeds requests-per-minute, tokens-per-minute or project quota. Immediate retries from many workers create a retry storm and can consume remaining quota.
Resolution: Queue calls with bounded concurrency; on 429 respect Retry-After or use exponential backoff with jitter and a retry cap. Do not retry permanent validation/4xx errors and use idempotency for side-effecting operations.
Rollback and recovery plan
Restore the last approved configuration, stop the affected workflow and revoke any exposed credential. If real data was processed through an unauthorised path, retain minimal redacted records and follow the internal incident-response process.
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