Is there a possibility to have several different clusters running on same elasticsearch program..? (I would say no, because conf is supposed to be different for each cluster)
Or should I have to install several elasticsearch programs for this to work..?
If so, then I should just install this package as it is and then change the /usr/share/elasticsearch folder name, service name etc.. and then I can install another elasticsearch program (Can I install it as a package though..?) on default locaton and then rename it as I did the first one, correct..?