为什么很多定时任务都有 random delay 的要求？ - V2EX
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vjnjc

为什么很多定时任务都有 random delay 的要求？

  •   
  •   vjnjc May 29, 2018 2529 views
    This topic created in 2890 days ago, the information mentioned may be changed or developed.

    看到很多使用 crontab 的功能上，除了业务逻辑，还有一小段 sleep random 的逻辑。 请问一下这是为了什么场景？

  • random
  • 逻辑
  • crontab
  • delay
    2 replies    2018-05-29 13:30:20 +08:00
    jybox
        1
    jybox  
       May 29, 2018
    防止其他任务或者重试都集中在某个时间点上。
    ichou
        2
    ichou  
       May 29, 2018
    多实例情况下 避免并发
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