Difference between "I have John done it" and "I had John done it"

The event happened in the past. Then, what is the correct sentence to explain it:
John updated one file on Server.
I told him to do that and he did it, and now I am telling this past event to others.

Which one is correct.

  1. I have John done it.
  2. I had John done it.

I had John do it. (have somebody do something)

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Thanks Torsten, for your help!

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