Merging indices from old server

Elastic Stack Elasticsearch
1

Hello,

I need to merge the data of an index from the old server into the new one. The data has been accumulating over a month now in the new server. should I copy the data via a script? or there is a build in functionality to do it for me.
In case I need to do it by hand, how should I solve the clashing ids problem?

Thank you,

2

Welcome to our community! :smiley:

Are they different clusters?

3

Thanks)
I have one cluster with one node.
I've read that I can use an alias to perform search on different indices, or I can use the bulk API to copy the data via an external App.
Is there any better way to handle this case?

4

It's not clear where you are moving things from/to if it's just a single cluster?

5

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