Prometheus: Incremental querying option for to: now dashboards
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…d' into feat/json-query-transformer
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itsmylife
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Apr 3, 2023
leeoniya
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Apr 3, 2023
Co-authored-by: Leon Sorokin <leeoniya@gmail.com>
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gtk-grafana
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leeoniya
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Apr 11, 2023
public/app/plugins/datasource/prometheus/querycache/QueryCache.ts
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leeoniya
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gtk-grafana
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Is there a public version of these documents? Ideally, please attach an ODT copy here. Thanks! :) |
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This PR introduces incremental querying to the Prometheus data source.
Design doc
Spec sheet
Incremental querying is being used to refer to a caching/amending concept that can help unify partial queries for Prometheus and Loki (#62767) that works for exemplars as well. This hasn't yet been applied to annotations in this PR, but should also work.
In other words, this makes subsequent dashboard queries much smaller, as we're only querying the duration between each refresh, plus any additional overlap that the user has specified (defaults to 10 minutes).
This PR introduces data source configuration fields that default off, so users will need to opt-in data sources to use this feature, which should be considered in beta.