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proxyd/fix: error rate tolerance (#5606)

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felipe-op 2023-05-04 09:53:11 -07:00 committed by GitHub
parent 7a4a9b5c39
commit bb4a592d77
1 changed files with 5 additions and 1 deletions
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6
proxyd/proxyd/backend.go
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@ -557,7 +557,11 @@ func (b *Backend) doForward(ctx context.Context, rpcReqs []*RPCReq, isBatch bool
// IsHealthy checks if the backend is able to serve traffic, based on dynamic parameters
func (b *Backend) IsHealthy() bool {
errorRate := b.networkErrorsSlidingWindow.Sum() / b.networkRequestsSlidingWindow.Sum()
errorRate := float64(0)
// avoid division-by-zero when the window is empty
if b.networkRequestsSlidingWindow.Sum() >= 10 {
errorRate = b.networkErrorsSlidingWindow.Sum() / b.networkRequestsSlidingWindow.Sum()
}
avgLatency := time.Duration(b.latencySlidingWindow.Avg())
if errorRate >= b.maxErrorRateThreshold {
return false