Prometheus: pull-based metrics and PromQL
Prometheus scrapes HTTP /metrics endpoints on a schedule (pull model). Samples land in a local time-series DB with labels—each unique label set is a series. You query with PromQL (aggregation, rates, histograms). Alerts are recording/alerting rules evaluated inside Prometheus; Alertmanager handles routing and noise control.
Content is available with subscription.
Get full access to all courses on the platform for one year with a single payment.
▼
Unlike other platforms that charge per course, here you get everything for one price, and after one year of use there will be no automatic charge for the following year.