In addition to the data sources that you have configured in your Grafana, there are three special data sources available: Click Query options next to the data source selector to see settings for your selected data source. If your time series store has a query cache, then this option can override the default cache timeout. SELECT hostname FROM host WHERE region IN($region) PromQL. For more information about adding data sources, refer to Add a data source. Step-by-step guides to help you make the most of Grafana. Query tab UI. It allows you to query, visualize, alert on, and explore your metrics no matter where they are stored. The best way to compose and scale observability on your own infrastructure. Time shift - The time shift function is another way to override the time range for individual panels. To return a field to the default setting, delete the white text from the field. Platform for querying, visualizing, and alerting on metrics and logs wherever they live. Customize your Grafana experience with specialized dashboards, data sources, and apps. Official Grafana Labs community forums. Toggle query editor help. For example, Prometheus exposes PromQL for time series data, and MySQL data source exposes SQL query language. The first query will use the data source that was selected before you selected. Help us make it even better! You can see, there is an option of Functions, just below the Series.There are a lot of functions available which you can explore. Query expressions can contain references to other variables and in effect create linked variables. For more information about the panel inspector, refer to Inspect a panel. Min interval - Sets a minimum limit for the automatically calculated interval, typically the minimum scrape interval. memory usage, cpu, etc.). Although Grafana is robust, fast and easy to set up, it is fairly limited when it comes to working with tabular data coming from lots of different disconnected queries (and … Love Grafana? Return the 5-minute rate of the http_requests_total metric for the past 30 minutes, with a resolution of 1 minute. Removing a query permanently deletes it, but sometimes you can recover deleted queries by reverting to previously saved versions of the panel. What end users are saying about Grafana, Cortex, Loki, and more. Grafana asks, “Hey data source, would you send me this data, organized this way?” If the query is properly formed, then the data source responds. What end users are saying about Grafana, Cortex, Loki, and more. You can click Query inspector to open the Query tab of the panel inspector where you can see the query request sent by the panel and the response. Query and visualize data. Duplicating queries is useful when working with multiple complex queries that are similar and you want to either experiment with different variants or do minor alterations. Depending on your data source, the query editor might provide auto-completion, metric names, or variable suggestion. For example, you might want a Grafana chart that displays both bytes transferred and requests per second; Flux allows you to query these two measurements and join them into a single table. Click it to select a data source you have added. When the Multi-value or Include all value options are enabled, Grafana converts the labels from plain text to a lucene compatible condition. Hide a query. Adjust other data source settings as desired (for example, choosing the right Access method). Relative time - You can override the relative time range for individual panels, causing them to be different than what is selected in the dashboard time picker in the top right corner of the dashboard. Select "Prometheus" as the type. One of the most resource intensive queries for Zabbix API is the history query. Multi-tenant timeseries platform for Graphite. Any tips on how we can keep it short but explain the column names better in the Help section for the MySQL data source? Remove a query. If you want more information about using Grafana with Elasticsearch, check out our tutorial. Grafana Labs uses cookies for the normal operation of this website. The subquery for the deriv function uses the default resolution. Horizontally scalable, multi-tenant log aggregation system inspired by Prometheus. Some data sources have custom query editors. Set the appropriate Prometheus server URL (for example, http://localhost:9090/) 6. On-demand sessions on Prometheus, Loki, Cortex, Tempo tracing, plugins, and more. For more information, refer to Global variables. For example, the query below will return a list with values from hostname and hostname2. The latest news, releases, features, and how-tos. In this article, we will use Elasticsearch as the data source for MetricFire’s Grafana as a Service. Create your free account. All dashboards I’ve seen are still using InfluxDB 1.x. Category Topics; Grafana Support. Learn about the monitoring solution for every database. Guides for installation, getting started, and more. Grafana Loki. The variable values change as they dynamically fetch options with a data source query. De facto monitoring system for Kubernetes and cloud native. 3. Copy a query. Highly scalable, multi-tenant, durable, and fast Prometheus implementation. With streaming data, the max data points value is used for the rolling buffer. Horizontally scalable, multi-tenant log aggregation system inspired by Prometheus. Love Grafana? Lucene query syntax is available to Kibana users who opt out of the Kibana Query Language.Full documentation for this syntax is available as part of Elasticsearch query string syntax. In order to demonstrate how to use Grafana Alerts we need to set up our monitoring environment. Note: You need to add at least one query before the Query inspector can return results. To create a new variable, go to your Grafana dashboard settings, navigate to the Variable option in the side-menu, and then click the Add variable button. SELECT [host]. For example, a query variable might return a list of server names, sensor IDs, or data centers. This automatic interval is calculated based on the width of the graph. With your InfluxDB connection configured, use Grafana and Flux to query and visualize time series data stored in your InfluxDB instance. A query is a question written in the query language used by the data source. To create template variable click the cog icon on the top navigation bar and choose Templating. The Query tab consists of the following elements: The data source selector is a drop-down list. On-demand sessions on Prometheus, Loki, Cortex, Tempo tracing, plugins, and more. Query expressions are different for each data source. New free and paid plans for Grafana CloudBeautiful dashboards, logs (Loki), metrics (Prometheus & Graphite) & more. Query variables allow you to write a data source query that can return a list of metric names, tag values, or keys. Browse a library of official and community-built dashboards. Tempo is an easy-to-operate, high-scale, and cost-effective distributed tracing system. This is the place for asking questions and requesting help with Grafana. Create your free account. You will have to learn the Prometheus query language (PromQL). An easy-to-use, fully composable observability stack. There are some compatibility issues with integrating Elasticsearch 5.x that you should be aware of — alerting, one of Grafana’s more recent features — does not seem to work well, for example. — Grafana Labs — Getting Started Platform for querying, visualizing, and alerting on metrics and logs wherever they live.