Performance tuning steps of Elasticsearch cluster

performance tuning steps of Elasticsearch cluster..

Please share the commands and analysis details which can be used as a template

Please do not provide link

Are you having issues?

es heap size and circuit breaker limit needs to be reviewed for circuitbreaker/OOM exception .
How to check heap size before and after executing a query , and how much field data cache of heap size its used needs to be analyzed

Are you using Marvel? If not I would suggest starting there as it has easy to view graphs on a bunch of important stats.

currently we dont use marvel, how to check @ CLI command line interface .also jVM Vs field data cahce variation for query level

You probably want to look over then

Also has lots of handy stats.