In an ELK deployment what are metrics people typically monitor in Elastic Search. We are able to gather and monitor the following metrics using enter link description heredatadog.
We have a 4nodes in the ELK cluster:-
3 master-data nodes
1 client node + kibana
We have about 2 110 GB indices. We are keeping 7 days logs. So a total of 14 indices.
Please point me to any doc or wiki about ElasticSearch monitoring ( if possible more specific to ElasticSearch-Logstash-Kibana deployment).