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Systems and service monitoring
There are a number of libraries and servers which help in exporting existing metrics from third-party systems as Prometheus metrics.
Each server is independent for reliability, relying only on local storage.
PromQL allows slicing and dicing of collected time series data in order to generate ad-hoc graphs, tables, and alerts.
Alerts are defined based on Prometheus's flexible PromQL and maintain dimensional information. An alert manager handles notifications and silencing.
Prometheus implements a highly dimensional data model. Time series are identified by a metric name and a set of key-value pairs.