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Document extra scrape metrics. #2891

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Document extra scrape metrics. #2891

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9 changes: 9 additions & 0 deletions docs/concepts/jobs_instances.md
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Expand Up @@ -41,6 +41,15 @@ the following time series:
* `scrape_series_added{job="<job-name>", instance="<instance-id>"}`:
the approximate number of new series in this scrape. *New in v2.10*

if you enable [`extra-scrape-metrics` feature](/docs/prometheus/latest/feature_flags/#extra-scrape-metrics), you will also get:

* `scrape_timeout_seconds{job="<job-name>", instance="<instance-id>"}`:
the configured scrape timeout for a target.
* `scrape_sample_limit{job="<job-name>", instance="<instance-id>"}`:
the configured sample limit for a target.
* `scrape_body_size_bytes{job="<job-name>", instance="<instance-id>"}`:
the uncompressed size of the most recent scrape response, if successful.

The `up` time series is useful for instance availability monitoring.

With the [`extra-scrape-metrics` feature flag](/docs/prometheus/latest/feature_flags/#extra-scrape-metrics) several additional metrics are available:
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