## DelayedOperation

延迟操作类，源码解析：<https://github.com/BeginMan/kafka-0.10.1.1-src/blob/337e91bc982610b2933398a36f3634b8f0d9a7a1/core/src/main/scala/kafka/server/DelayedOperation.scala>

![image-20190401212541110](http://limbo.oss-cn-beijing.aliyuncs.com/2019-04-01-132541.png)

内部流程如下：

![DelayedOperation内部流程](http://limbo.oss-cn-beijing.aliyuncs.com/2019-04-01-132940.png)

