Does Reindex From Remote require storing _source in the source index (indices)?

Elastic Stack Elasticsearch
1

Simple question:

Can anyone confirm the necessity of storing _source in the source indices in order to make Reindex From Remote work successfully? Is storing _source required or not for Reindex From Remote?

Cheers!

2

Yes, it is.

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3

The docs aren't clear on that, so I've created https://github.com/elastic/elasticsearch/pull/35062

4

Thanks! That's what I needed. Unfortunately, it's bad news but at least it's clear bad news.

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