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Clean up comments around exponential backoff

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This commit is contained in:
Brandur 2016-06-30 10:44:08 -07:00
parent 8377a9f941
commit 774e885334
1 changed files with 7 additions and 6 deletions
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lib/stripe.rb
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@ -424,15 +424,16 @@ module Stripe
end
def self.sleep_time(retry_count)
# This method was adapted from https://github.com/ooyala/retries/blob/master/lib/retries.rb
# The sleep time is an exponentially-increasing function of base_sleep_seconds. But, it never exceeds
# max_sleep_seconds.
# Apply exponential backoff with initial_network_retry_delay on the number
# of attempts so far as inputs. Do not allow the number to exceed
# max_network_retry_delay.
sleep_seconds = [initial_network_retry_delay * (2 ** (retry_count - 1)), max_network_retry_delay].min
# Randomize to a random value in the range sleep_seconds/2 .. sleep_seconds
# Apply some jitter by randomizing the value in the range of (sleep_seconds
# / 2) to (sleep_seconds).
sleep_seconds = sleep_seconds * (0.5 * (1 + rand()))
# But never sleep less than base_sleep_seconds
# But never sleep less than the base sleep seconds.
sleep_seconds = [initial_network_retry_delay, sleep_seconds].max
sleep_seconds