Posts tagged "distributed systems"

A deduplication TTL must cover every supported path by which an old message can return. Derive the window from retries, replays, outages, and redrives.

A database inbox turns at-least-once delivery into one committed business effect by claiming message identity in the same transaction as domain changes.

Large API batches reduce request overhead until one bad record makes good records fail with it. A measured way to find the useful batch size and retry unit.

When all tenants consume one provider quota, local retries and per-worker limits are not enough. Use a global budget with fair tenant admission and feedback.

A checkpoint is a claim about durable effects, not the last page fetched. Compare commit protocols and crash points so recovery repeats work instead of losing it.