Enable http encryption on cluster

I have an 8 node cluster running the basic license and is currently only configured with transport security. I am looking to enable http encryption on the cluster and the documentation mentions to shutdown all the nodes when doing this. Is it possible to do a rolling implementation so the cluster is not down while enabling these settings across all the nodes. This would so allow validation the node is working correctly before moving on to another node.


You can perform the upgrade with a rolling restart - however, most clients don't have support for a mixed HTTP/HTTPS cluster.
If your clients are configured to connect to multiple nodes (or use node sniffing) you may find they have issues when some of the nodes have SSL enabled but other nodes do not.

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