In the first case the script reads the start option and starts the instance, and in the second case, it simply stops the instance with the force option.
第一种情况中，该脚本读取start选项并启动实例，而在第二种情况中，它仅仅用force选项停止实例。
It's not a problem if 1st instance is already halfway done when the second just starts, their local variables are not related to each other.
如果第一个实例已经完成一半了，第二刚开始那就不是个问题，他们的局部变量互不相关。
It's not a problem if 1st instance is already halfway done when the second just starts, their local variables are not related to each other.
如果第一个实例已经完成一半了，第二刚开始那就不是个问题，他们的局部变量互不相关。
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