当调度程序功能执行未完成并且调度程序调用该函数时会发生什么

Question

I am calling a function via aa scheduler after every 5 seconds.In this function,i am performing some database operations.So my question is,if the function execution is not completed and the scheduler re calls the same function,then what would happen to the function that was currently getting executed.

Below is a screenshot of the code with the scheduler.

Answer 1

You can just try it. There will be something output and tell you that the task is still running, so it won't run again this time, it will be checked next time.

For example:

Execution of job "a (trigger: interval[0:00:01], next run at: 2018-04-25 14:09:57 CST)" skipped: maximum number of running instances reached (1)