Are there any difficulties or limitations to have a cluster of instances mixing cloud-hosted Elasticsearch with self-hosted instances ?
I have a main cloud instance, hosted by Elasticsearch. And I am wondering if it is at all possible to have a self-hosted instance, more oriented to research and dev, while being part of the main instances cluster thereby having the same indexes and data available on the self-hosted instance...
I seem to remember having read somewhere that the versions need to be the same ?
Maybe there is a better way to achieve this ?