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martialblog merged 1 commit into from
Apr 10, 2026
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Add note about Graphite storage-schema to docs #29

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9 changes: 9 additions & 0 deletions doc/02-Installation.md
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Expand Up @@ -39,3 +39,12 @@ To install this module, follow the setup instructions for the **extras** reposit

`max_data_points` is used for downsampling data. It uses the `maxDataPoints` option at the Graphite API.
If for any output series the number of datapoints in a selected range exceeds the maxDataPoints value then the datapoints over the whole period are consolidated.

## Graphite Storage-Schema

The interaction between Graphite's storage schemas and Icinga's check intervals may result in Graphite being unable to aggregate metrics properly. This may result in empty charts.

Further information:

- https://icinga.com/docs/icinga-2/latest/doc/14-features/#graphite-carbon-cache-writer
- https://graphite.readthedocs.io/en/stable/config-carbon.html#storage-schemas-conf