令牌桶算法(token bucket algorithm) 限流 http://blog.csdn.net/sunnyyoona/article/details/51228456 今天观看QCon大会讲述了阿里线上管控体系,其中主要使用了令牌桶算法来实现限流的目的。表示非常好奇,故此学习一下什么是令牌桶算法。 1. 简介 令牌桶算法最初来源于计算机网络。在网络传输数据时,为了防止网络拥塞,...
What is Token Bucket? 令牌桶算法是用于计算机网络和电信中用于流量整形和速率限制的算法。它旨在控制系统在某种时间段内可以发送或接收的数据量,确保流量符合指定的速率。 让我们先从一个最简单的模型看起。 令牌桶背后的基本思想非常简单。当数据包到达时,Policer 将检查令牌桶中是否有足够的令牌,如果有,数据包将...
logger.Infof("task qps: %v, num: %v, timeNeed: %.3fs", qps, num, timeNeed.Seconds()) bucket := NewTokenBucket(qps, qps) startTime := time.Now() lastTime := startTimefori :=int64(1); i <= num; {ifbucket.TakeAvailable(1) ==1{ time.Sleep(timeNeed) i++ifi%1000==0{ ...
“人会爱上自己所知的事物,却更爱未知的事物。” -- 《火山挚恋》 上文说到Policer是一个通过令牌桶算法进行报文流量监控的组件,Policer经常进行令牌的消耗和补充。然而,在补充过程中,如果令牌桶中剩余的令牌…
If failure has occurred in load balancing process that creates unavailability of data. Our main aim is to maintain proper load balancing strategy with the help of token bucket algorithm with maintain congestion control properly.Enakshmi Nandi
Single-Rate-Two-Bucket Mechanism The single-rate-two-bucket mechanism uses the srTCM algorithm defined in RFC 2697 to measure traffic and marks packets green, yellow, or red based on the metering result. As shown in Figure 5-1, buckets C and E contain Tc and Te tokens respectivel...
The single-rate-two-bucket mechanism uses the srTCM algorithm defined in RFC 2697 to measure traffic and marks packets green, yellow, or red based on the metering result. As shown in Figure 9-1, bucket C (also called CIR token bucket) and bucket E (also called EIR token bucket) contain...
If a packet is categorized as conforming (so its size in bytes is less than or equal to the CIR), why are tokens removed from the Be (PIR) bucket as well? That's all, thank you. David I have this problem too Labels: Other Network Other Networking 0...
Rate Limit Algorithm Based on the token bucket algorithm:http://en.wikipedia.org/wiki/Token_bucket Getting play-guard For Play 3.0.x: "com.digitaltangible"%%"play-guard"%"3.0.0" For Play 2.9.x: "com.digitaltangible"%%"play-guard"%"2.6.0" ...
If a packet is categorized as conforming (so its size in bytes is less than or equal to the CIR), why are tokens removed from the Be (PIR) bucket as well? That's all, thank you. David I have this problem too Labels: Other Network Other Networking 0...