backoff starts at 1 instead of zero (#62)
NewTicker(time.Duration(0)) is illegal - let's prevent it from being able to
happen.
diff --git a/v2/call_option.go b/v2/call_option.go
index 7b62164..0f6b712 100644
--- a/v2/call_option.go
+++ b/v2/call_option.go
@@ -126,10 +126,11 @@
if bo.Multiplier < 1 {
bo.Multiplier = 2
}
- // Select a duration between zero and the current max. It might seem counterintuitive to
- // have so much jitter, but https://www.awsarchitectureblog.com/2015/03/backoff.html
- // argues that that is the best strategy.
- d := time.Duration(rand.Int63n(int64(bo.cur)))
+ // Select a duration between 1ns and the current max. It might seem
+ // counterintuitive to have so much jitter, but
+ // https://www.awsarchitectureblog.com/2015/03/backoff.html argues that
+ // that is the best strategy.
+ d := time.Duration(1 + rand.Int63n(int64(bo.cur)))
bo.cur = time.Duration(float64(bo.cur) * bo.Multiplier)
if bo.cur > bo.Max {
bo.cur = bo.Max
