I put in place a new Elastic cluster v8.7 to replace an old one in v7.12.
In Elastic cluster v8.7, I started using Datastreams.
My question: what is the best way to transfer indices' data from old cluster to datastreams into the new one ?
Is it Cross-cluster replication APIs ?
Or Restoring snapshots ?
Is it also possible to send data in Datastreams ?
Thank you so much for your help.