Transfer and map data from one elasticsearch to another

The case is that, we need to transfer data from one elasticsearch server A (in system A) to another elasticsearch server B (in system B). It's not simple like sycn / backup / dump as we also need to do some mapping. Index in server A and server B are with different fields and different mapping setting.

It's better to not write java codes or new micro-service to do this. I hope there could be some plugin, or any other tools/script that I can leverage.

Thanks very much in advance!

I believe that reindex from remote feature is what you need?

It's in 5.x series

Thanks, that's a great feature. Unfortunately, I have to use 2.x because of some dependencies.

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