https://aws.amazon.com/cn/blogs/architecture/exponential-backoff-and-jitter/
    补偿策略:

    1. // Back off strategies
    2. enum BackOffStrategy {
    3.     // NoJitter makes the backoff sequence strict exponential.
    4.     NoJitter,
    5.     // FullJitter applies random factors to strict exponential.
    6.     FullJitter,
    7.     // EqualJitter is also randomized, but prevents very short sleeps.
    8.     EqualJitter,
    9.     // DecorrJitter increases the maximum jitter based on the last random value.
    10.     DecorrJitter
    11. }

    参考实现：
    java:
    https://github.com/sticnarf/client-java/blob/master/src/main/java/org/tikv/common/util/BackOffFunction.java
    https://github.com/sticnarf/client-java/blob/master/src/main/java/org/tikv/common/util/BackOffer.java

    golang: