Effeciency of cross cluster search

Elastic Stack Elasticsearch
1

Hi,
I want to query an elastic index across different clusters in different data centers . I need to query it to generate a consolidated report. I have some questions
1] Will cardinality and nested aggregations give accurate results across different clusters for different DCs ?
2] How good is the perfomance of a cross cluster search with minimum round trips against a single cluster search ?
3] How is Cross Cluster Replication then a Search Versus Cross Cluster Search?

Any other suggestions are welcome .

2

Hi,

Bumping the question, I'd like to know about cardinality results too.

YvorL

3

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