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The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
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Besides minor language corrections, this tries in particular to provide some clarity about the `step` setting in the Prometheus range query and the `$__interval` variable: - First of all: They are both always the same. - What's really confusing (and arguably really un-helpful) is that the _Min time interval_ is multiplied by the resolution factor. Therefore, I just state the fact here now but don't add anything like "This should be the scrape interval" because it is not true (if resolution is `1/10`, a meaningful _Min time interval_ is generally a tenth of the scrape interval). - More helpful is the _Min step_ parameter, because it is not multiplied by the resolution factor (which I have now stated explicitly). Of course, the _Min time interval_ has to be set to something small so that the _Min step_ parameter can kick in. It would be good if we could also override the _Min time interval_ tool tip because that is where most people will look, and the current, very Graphite-centric tool tip is very confusing for the Prometheus query editor, in particular because it doesn't have any hint about the resolution factor being applied. See #21413. Signed-off-by: beorn7 <beorn@grafana.com> |
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The open-source platform for monitoring and observability.
Grafana allows you to query, visualize, alert on and understand your metrics no matter where they are stored. Create, explore, and share dashboards with your team and foster a data driven culture:
- Visualize: Fast and flexible client side graphs with a multitude of options. Panel plugins for many different way to visualize metrics and logs.
- Dynamic Dashboards: Create dynamic & reusable dashboards with template variables that appear as dropdowns at the top of the dashboard.
- Explore Metrics: Explore your data through ad-hoc queries and dynamic drilldown. Split view and compare different time ranges, queries and data sources side by side.
- Explore Logs: Experience the magic of switching from metrics to logs with preserved label filters. Quickly search through all your logs or streaming them live.
- Alerting: Visually define alert rules for your most important metrics. Grafana will continuously evaluate and send notifications to systems like Slack, PagerDuty, VictorOps, OpsGenie.
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