Is there some sort of preproduction staging mechanism (reindexing takes quite some time)

Hi there,

I'm currently evaluating Elasticsearch for our project. In this project we want to completely reindex our database from time to time, which will probably take a few hours up to a couple of days.
This must not affect the database in production, as users are working with the system 24/7.

And here is my question:

  • Is there a best practice around how to achieve this?

Any hints or keywords to search for highly appreciated.

Kind regards

P.S.: My current toughts on this:

  • Should we index the data into another cluster, node or index?
  • Can we replicate it into our live system?
  • Should we write data with some sort of notYetVisible boolean?

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