feat(om2): classic histogram and summary as complex types #2679
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krajorama
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Ref: prometheus/OpenMetrics#283 Signed-off-by: György Krajcsovits <[email protected]>
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Signed-off-by: György Krajcsovits <[email protected]>
krajorama
commented
Jun 16, 2025
The timestamp requirement came from current limitations in Prometheus exemplar storage. However in the future this might be solved. Also there's the case when a classic histogram exposes exemplars. Signed-off-by: György Krajcsovits <[email protected]>
dashpole
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Jun 17, 2025
| Complex data types MUST contain all information necessary to recreate a sample of a Metric Type, with the exception of Created Value and Exemplars. | ||
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| List of complex data types: | ||
| - Integer counter classic histogram for the Metric Type Histogram. |
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nit: are these float histograms, rather than integer histograms?
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Ref: prometheus/OpenMetrics#283
It isn't hard to come up with a representation, based on previous work in https://github.com/prometheus/proposals/blob/main/proposals/2024-01-29_native_histograms_text_format.md .