Code QuizAdvanced

Availability SLI Calculation Bug

Spot the mistake in a function that computes an availability SLI and compares it to an SLO.

Codejavascript

// SLO: 99.9% of requests should succeed
const SLO_TARGET = 0.999;

function meetsSlo(totalRequests, failedRequests) {
  // availability SLI = successful / total
  const sli = failedRequests / totalRequests;
  return sli >= SLO_TARGET;
}

// 1,000,000 requests, 500 failed
console.log(meetsSlo(1000000, 500)); // expected: true

What is the bug in this SLI calculation?

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