We are setting up ES cluster in our env and have 2 concerns.
- Is it advisable to do vertical clustering (putting more than one node per server)
- is it possible to move the elasticsearch.yml configuration file to a separate location and use -Des.config option to point to that file at the startup. We've read few articals on ES latest version mentioning that -Des.config has been removed. If that's the case is there a workaround? We have our own directory structure that we keep config files separately so that we can do binary upgrades without effecting the app configuration.