https://vacua.dev/tags/rate-limits/Recent content in Rate-Limits on Brian FaustHugoen-USMon, 01 Jan 0001 00:00:00 +0000https://vacua.dev/thoughts/a-rate-limit-belongs-to-all-the-workers-sharing-it/Sun, 01 Jul 2018 00:00:00 +0000https://vacua.dev/thoughts/a-rate-limit-belongs-to-all-the-workers-sharing-it/<p>One polling job receives a 429 response saying to try again in fifteen seconds. It releases itself for fifteen seconds.</p> <p>During that pause, twenty other workers poll the same provider. They have not seen the response, so each sends another request into the closed window.</p> <p>The first job obeyed the limit. The application did not.</p> <h2 id="find-the-scope-before-choosing-the-delay">Find the scope before choosing the delay</h2> <p>A rate limit applies to some shared identity: an API credential, account, tenant, endpoint family, source address, or a combination of them. Every worker using that identity spends the same remote capacity.</p>