elasticsearch - cross cluster search with elastic search scalability tests / performance results -


my question reference elasticsearch's new feature 'cross cluster search' https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-cross-cluster-search.html

  1. are there performance tests/ studies available feature? how scalable it? 1 use case have is, 10 clusters 1 million documents each (total 10 mil across clusters)
  2. are there other open source software available cross cluster search/ federated search? (need support pagination, column search, , sorting)


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