Endpoint Faliure Rate Calculator

faliure_rate_calc.rb

# This script helps calculate the total number of requests given a failure rate
# Example: 1,000,000 requests with a 33% failure rate will result in 492,536 retries
#          This means it would take 1,492,536 requests to update 1M objects in an endpoint
#          that has a 33% failure rate.

total_retries = 0
requests = 1_000_000
faliure_rate = 0.33
attempt = 1

while requests > 3 do
  retries = requests * faliure_rate   
  requests = retries
  total_retries += retries

  puts "On the #{attempt} attempt, #{(retries).to_i} will be retried!"
  attempt += 1
end

puts "Total retries: #{total_retries.to_i}"

This can help you calculate the needed throughput for an endpoint given an average failure rate.