Metricbeat
General Info
Metricbeat sends selected server health data to our elasticsearch server.
All servers (by default, not a requirement) run metricbeat with the default system module enabled. All servers share a metricbeat username and password authorizing them to connect to the es server.
Index Lifetime Management
Index Lifetime Management (ILM) is how elasticsearch manages log rotation and retention. It’s covered in it’s own ILM page.