Prometheus - Label (Dimension)

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Labels enable Prometheus's dimensional data model

Any given combination of labels for the same metric name identifies a particular dimensional instantiation of that metric (for example: all HTTP requests that used the method POST to the /api/tracks handler).

The query language allows filtering and aggregation based on these dimensions.

Changing any label value, including adding or removing a label, will create a new time series.



Example of two labels:




Label names may contain:

They must match the regex [a-zA-Z_][a-zA-Z0-9_]*.

Label names beginning with __ are reserved for internal use.

More … naming


Label values may contain any Unicode characters.

A label with an empty label value is considered equivalent to a label that does not exist.

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Prometheus - Time Serie

All data stored and manipulated are time series in Prometheus server making it a time serie database. Every time series is uniquely identified by: its metric name and optional key-value pairs called...

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