Prometheus - Collector

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A collector is a metrics collector and is embedded in the prometheus server.



The scrape_configs block of the prometheus.yml file controls what resources Prometheus monitors. The below example shows a single job, called prometheus, which scrapes the metrics (time series data) exposed by an exporter (below this is the internal Prometheus server exporter)


  - job_name: prometheus
      - targets: ['localhost:9090']
    scheme: 'https' 


Ref Conf Doc

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Prometheus - Exporter

An exporter is an endpoint that: produces a page with metrics that the collector can scrap. By default, the URL is: Exporters may add filter capabilities via the URL. Example with a name[] URL...
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Prometheus - Instance (Target)

An endpoint you can scrape is called an instance, usually corresponding to a single process. The target's URL that was scraped.
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Prometheus - Metrics

This page is metrics in Prometheus. where: the metric name is api_http_requests_total the labels are: method=“POST” handler=“/messages” A metric identifier is composed uniquely...
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Prometheus - prometheus.yml (conf)

The configuration of prometheus is done via the prometheus.yml file in a Yaml format Global Block Controls the Prometheus server's global configuration rule_files block specifies the location...

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