When multiple Indexes are created with the rolling option

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When multiple Indexes are created with the rolling option, are they created concurrently?
Or are they created one at a time?

My understanding is that they are being processed one at a time, as I check the execution status in MongoDB Atlas.

That is, while the previous Index is building, the next Index is waiting to be built.

Is this correct?

The official documentation does not go into detail, so if anyone knows anything about this, I would like to know.

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Hello, welcome to the MongoDB Community.

That’s right, he does one at a time.

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Thank you Samuel-San,

I assumed so.
However, I was not sure if it was ture and there was no one around to confirm it.
So your answer was very reassuring♪

Regards.

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