Thanks for the explaination.
Now I know the reason why I cannot set the value from inventory file.
And also thanks for branko to point out the inconsistence of variable
names, I didn't notice that. :p
Brian Coca於 2018年2月9日星期五 UTC+8下午11時08分27秒寫道：
> This is because serial is a play level keyword and must be the same
> for ALL hosts in play, so inventory data cannot be used to set it.
> You cannot set 'batches' of hosts for all play if the batch size keeps
> changing per host.
> Brian Coca
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