Metrics
Live and historical resource usage for servers, apps and databases, and the switch that turns history on.
serverMetrics reads live CPU, memory, disk and network for one server.
appMetrics(appId) and databaseMetrics(databaseId) read the same live
numbers per container, what the dashboard's Monitoring tab shows. Each has a
*MetricsHistory counterpart that seeds the same view with a short rolling
history instead of just the current sample.
setSaveMetrics is the instance-wide "Save metrics" switch: turning it off
stops history from accumulating for every server, app and database at once.
Needs manage_monitoring.
See also
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