How are the OS related metrics are collected using ElasticSearch Agent?
Lack of documentation
Release : 20.2
Component : APM Agents
The Memory or OS related metrics are collected using below Elasticsearch RestAPI
http://<ELASTICSEARCH_SERVICE_URL>:<ELASTICSEARCH_PORT>/_nodes/stats
We can get more info for these metrics from
https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-nodes-stats.html