8 lines
507 B
Markdown
8 lines
507 B
Markdown
# Quotas, backpressure, and DLQ (NR4)
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- Per-tenant quotas: 500 deliveries/minute default; channel overrides: webhook 200/min, email 120/min, chat 240/min.
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- Burst budget: 2x quota for 60 seconds, then hard clamp.
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- Backpressure: reject enqueue when backlog > quota*10 or DLQ growth > 5%/min.
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- DLQ schema: `docs/modules/notify/schemas/dlq-notify.schema.json`; redrive requires idempotent `delivery_id`/`dedupe_key`.
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- Metrics to alert: backlog depth, DLQ depth, redrive success rate, enqueue reject count.
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