Hello,
I'm fairly new to EleasticSearch, but we've got 2 clusters already. A 2.4 cluster running on 2 nodes and a 6.2 cluster running on 4 nodes. Now we want to migrate the data on the 2.4 cluster to the 6.2 cluster, but what would be the best approach?
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Is it possible to upgrade the 2.4 to 6.2 (using the https://www.elastic.co/guide/en/cloud-enterprise/current/ece-upgrading-v6.html topic) and just add the nodes of the first cluster to the second cluster and than later on remove the first two again?
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Try an migrate the data using the Reindex API?
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Something else?
With kind regards,
Andries Bruinsma