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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.
alertinganalyticsbusiness-intelligencedashboarddata-visualizationelasticsearchgografanahacktoberfestinfluxdbmetricsmonitoringmysqlpostgresprometheus
19ebb079ba
This commit adds support for limits and filters to the Prometheus Rules
API.
Limits:
It adds a number of limits to the Grafana flavour of the Prometheus Rules
API:
- `limit` limits the maximum number of Rule Groups returned
- `limit_rules` limits the maximum number of rules per Rule Group
- `limit_alerts` limits the maximum number of alerts per rule
It sorts Rule Groups and rules within Rule Groups such that data in the
response is stable across requests. It also returns summaries (totals)
for all Rule Groups, individual Rule Groups and rules.
Filters:
Alerts can be filtered by state with the `state` query string. An example
of an HTTP request asking for just firing alerts might be
`/api/prometheus/grafana/api/v1/rules?state=alerting`.
A request can filter by two or more states by adding additional `state`
query strings to the URL. For example `?state=alerting&state=normal`.
Like the alert list panel, the `firing`, `pending` and `normal` state are
first compared against the state of each alert rule. All other states are
ignored. If the alert rule matches then its alert instances are filtered
against states once more.
Alerts can also be filtered by labels using the `matcher` query string.
Like `state`, multiple matchers can be provided by adding additional
`matcher` query strings to the URL.
The match expression should be parsed using existing regular expression
and sent to the API as URL-encoded JSON in the format:
{
"name": "test",
"value": "value1",
"isRegex": false,
"isEqual": true
}
The `isRegex` and `isEqual` options work as follows:
| IsEqual | IsRegex | Operator |
| ------- | -------- | -------- |
| true | false | = |
| true | true | =~ |
| false | true | !~ |
| false | false | != |
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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:
- Visualizations: Fast and flexible client side graphs with a multitude of options. Panel plugins offer many different ways 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.
- Mixed Data Sources: Mix different data sources in the same graph! You can specify a data source on a per-query basis. This works for even custom datasources.
Get started
Unsure if Grafana is for you? Watch Grafana in action on play.grafana.org!
Documentation
The Grafana documentation is available at grafana.com/docs.
Contributing
If you're interested in contributing to the Grafana project:
- Start by reading the Contributing guide.
- Learn how to set up your local environment, in our Developer guide.
- Explore our beginner-friendly issues.
- Look through our style guide and Storybook.
Get involved
- Follow @grafana on Twitter.
- Read and subscribe to the Grafana blog.
- If you have a specific question, check out our discussion forums.
- For general discussions, join us on the official Slack team.
License
Grafana is distributed under AGPL-3.0-only. For Apache-2.0 exceptions, see LICENSING.md.