Hello Elasticians !
I'm asking is cluster.initial_master_nodes is mandatory when we upgrade from a already running 6.8 cluster to 7.8 cluster
I don't think so but if you could confirm..
Thanks 
Anyone ?
It depends
If you are doing a rolling upgrade then no, you should not set this. However if you are doing a full-cluster restart upgrade (i.e. shutting down half or more of the masters at once) then yes this setting is required.
Ok ! I will go through a rolling upgrade as recommended by documentation. Thanks @DavidTurner
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.