following situation : we have an existing 7.12 ES cluster in Elastic Cloud, with 2 hot data nodes. Multiple indices exist which were following an hot-warm-cold ILM policy and are already in a hot, warm or cold phase, but there are no warm and cold ES nodes present yet.
What happens when warm and cold nodes are added to the Elastic Cloud setup ?
Will the existing warm and cold indices be rerouted automatically ?
Or does this rerouting need to be triggered ?
Kind regards, Ben