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doc: Add notes about feature not yet supported for native histograms (#11453)
Namely federation and recording rules. Signed-off-by: beorn7 <beorn@grafana.com>
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@ -17,6 +17,10 @@ Rule files use YAML.
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The rule files can be reloaded at runtime by sending `SIGHUP` to the Prometheus
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process. The changes are only applied if all rule files are well-formatted.
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_Note about native histograms (experimental feature): Rules evaluating to
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native histograms do not yet work as expected. Instead of a native histogram,
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the sample stored is just a floating point value of zero._
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## Syntax-checking rules
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To quickly check whether a rule file is syntactically correct without starting
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@ -8,6 +8,9 @@ sort_rank: 6
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Federation allows a Prometheus server to scrape selected time series from
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another Prometheus server.
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_Note about native histograms (experimental feature): Federation does not
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support native histograms yet._
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## Use cases
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There are different use cases for federation. Commonly, it is used to either
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