问题描述
我一直在玩番石榴RateLimiter,发现它在延迟之后(如果rateLimiter在一段时间内未使用)不会立即应用节流。
下面是示例代码。
public static void main(String[] args) throws Exception{
RateLimiter rateLimiter = RateLimiter.create(1);
System.out.println("#1 Before delay waitTime= "+ rateLimiter.acquire());
System.out.println("#2 Before delay waitTime= "+ rateLimiter.acquire());
System.out.println("#3 Before delay waitTime= "+ rateLimiter.acquire());
System.out.println("-----------------------------");
Thread.sleep(4000);
System.out.println("#1 After delay waitTime= "+ rateLimiter.acquire());
System.out.println("#2 After delay waitTime= "+ rateLimiter.acquire());
System.out.println("#3 After delay waitTime= "+ rateLimiter.acquire());
System.out.println("-----------------------------");
Thread.sleep(4000);
System.out.println("#1 After delay waitTime= "+ rateLimiter.acquire());
System.out.println("#2 After delay waitTime= "+ rateLimiter.acquire());
System.out.println("#3 After delay waitTime= "+ rateLimiter.acquire());
}
结果如下:
#1延迟等待时间= 0.0
#2延迟前等待时间= 0.993215
#3延迟前等待时间= 0.998329
#1延迟等待时间= 0.0
#2延迟后waitTime = 0.0
#3延迟后等待时间= 0.999903
#1延迟等待时间= 0.0
#2延迟后waitTime = 0.0
#3延迟后等待时间= 0.999921
想知道为什么延迟后的前两次尝试(上面以粗体突出显示)没有节流(waitTime = 0.0)
解决方法
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