WARNING: The 2.x versions of Elasticsearch have passed their EOL dates. If you are running a 2.x version, we strongly advise you to upgrade.
This documentation is no longer maintained and may be removed. For the latest information, see the current Elasticsearch documentation.
If you use configuration management already (Puppet, Chef, Ansible), you can skip this tip.
If you don’t use configuration management tools yet, you should! Managing
a handful of servers by
parallel-ssh may work now, but it will become a nightmare
as you grow your cluster. It is almost impossible to edit 30 configuration files
by hand without making a mistake.
Configuration management tools help make your cluster consistent by automating the process of config changes. It may take a little time to set up and learn, but it will pay itself off handsomely over time.