Grafana use variable in query g. Or the data which is in General Settings >> Host. One bar1 is filled this way : SELECT SUM(Value) / 60000 AS ‘Bad’ FROM openhab. For example, a query variable might return a list of server names, sensor IDs, or data centers. If you have a lot of records in that customMeasurements, then it may cause a problem to your InfluxDB server or browser may have a problem to process so many records. Query variable May 31, 2023 · Grafana v9. As documentation says, Chained variable queries are different for every data source, but the premise is the same for all. Mar 1, 2021 · Use ad-hoc filters variable: Add ad hoc filters | Grafana Labs BTW: Select * from customMeasurements is wrong query. For example, if you have a time series graph showing CPU usage, you can modify the query to include the server variable:-- SQL query using a variable SELECT time, cpu_usage FROM metrics WHERE server_name = '{{server}}'; This allows you to switch between servers without modifying the query Nov 15, 2022 · With query variables, you can query any Loki data source for a list of labels or label values. I want to replace my query with a variable. You can use chained variable queries in any data source that allows them. Example: Using a Query Variable. Mar 26, 2021 · Grafana does support chained variables - where you use the values of one or more existing variables to generate the list of options for a new variable - but that’s done through a data source query, and I don’t think that this is what you want here. Sharing query results across … and all other places in documentation about dashboards as data sources and queries. Make sure to select the JSON API from the list of data sources. Grafana Tempo. Looks like this: From the example above I would like to use the data which is stored in Graph Settings >> Service field. Query variables enable you to write a data source query that can return a list of metric names, tag values, or keys. I would like to automatically create panels on a grafana dashboards (one panel for each monitored site Dec 4, 2020 · I have setup as a variable in grafana called selected_product_model but The panel that contains this SQL query is a pie chart, but I want to use this filter on Mar 26, 2021 · Grafana does support chained variables - where you use the values of one or more existing variables to generate the list of options for a new variable - but that’s done through a data source query, and I don’t think that this is what you want here. Interpolating of variables happens in directly in the data source. I tried “Interval Apr 11, 2022 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Add variables to metric queries and panel titles to create interactive and dynamic dashboards. Asking for help, clarification, or responding to other answers. Let me know if I’m making sense? Apr 21, 2021 · Hello everyone! I have a dashboard with these variables: first second third From my prometheus datasource, my metric have these labels: 001:first:label:x 001:first:label:y 002:second:label:x 002:second:label:y 003:third:label:x 003:third:label:y In my dashboard panel query, I would like to get the metric values from the labels per variable. Types of expressions. Each individual expression or query is represented by a variable that is a named identifier known as its RefID (e. My problem is that the names of the entries in the graph aren’t very readable, these for Grafana lists these variables in dropdown select boxes at the top of the dashboard to help you change the data displayed in your dashboard. Influxdb 2. How to use the Loki query variable editor in Grafana. As you select different variable values, the dashboard will automatically update with the relevant data based on the chosen variable. To pass an ad hoc filter as a query parameter, use the variable syntax to pass the ad hoc filter variable. com Jun 1, 2022 · How I can use variable in sql query at Grafana? I have variable robot but I do not know how I can use it in sql query. 71, Ubuntu 20 How to use Grafana variables efficiently in Flux Queries in a time series panel with a variable to toggle between hostnames in the queries. My query: SELECT datetime AS "time", api_robot. See full list on grafana. Grafana organizes queries in collapsible query rows. Grafana. In this step, we modify our query to use the variable we created in Step 1. Then provide the key, operator, and value as a pipe-separated list. You can edit the query for the variable in the same way as the default query Nov 5, 2021 · Hello, is it possible to use variables (maybe the wording is wrong) from my query as panel title? My datasource is CheckMK. Let's create a query variable to select a specific server from a data source, and use it in a graph panel to display CPU usage for that server. To query the JSON API data source for variables, follow the instructions on how to Add a query variable. To reference the output of an individual expression or a data source query in another expression, this identifier is used as a variable. Expressions work with two types of data. Apr 26, 2021 · Hi! I’m trying to use a variable to validate a CASE inside WHERE like this: SELECT timestamp AS "time", value AS "average" FROM average_values WHERE lookback = CASE WHEN ${lookback:raw} = "12h" THEN "average_last_12_hours" WHEN ${lookback:raw} = "7d" THEN "average_last_168_hours" ELSE "" END ORDER BY timestamp; The variables are set up as “Custom” type currently. Sep 25, 2018 · None of that worked, I finally found that, at least in postgresql connector, you can not use ‘=’ syntax to use variables, you have to use ‘in’ syntax intead, for example: WHERE client = ‘[[variable]]’ – this doesnt work, but if you use. May 28, 2021 · What should definitely work is to set up your first query (A) as a template variable. x86_64 What are you trying to achieve? It is hard for me to understand the basic concept behind variables (I guess). For example: Jun 17, 2024 · In panel queries, variables become powerful tools. This would then return either a list of label names, label values for a specific label, or a list of label values for a label in a specific log stream. Query variables let you extract data from a data source and use it to populate a dashboard variable. Dec 4, 2020 · I have setup as a variable in grafana called selected_product_model but The panel that contains this SQL query is a pie chart, but I want to use this filter on Learn how to add Grafana variables to drill into specific details, see all results, and quickly get the info you need. For more information, refer to Add ad hoc filters. That would allow you to use its output as the template variable, and set up query B as you need it in the panel. WHERE client in (’[[variable]]’) – that work as expected Grafana lists these variables in dropdown select boxes at the top of the dashboard to help you change the data displayed in your dashboard. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Item98 WHERE $__timeFilter Click Query options to configure the maximum number of data points you need. The examples in the documentation are hopefully clear. Write the query using the query editor. I have a prometheus datasource with several jobs monitoring website endpoints. May 20, 2020 · Grafana variables allow you to use a drop down menu to select various options, no code modifications required. Something similar to this: request_count:count:service{service!~"api1|api2|api3"} where, “request_count:count:service” is a record rule sourced from Prometheus. The base query is straight from the Influxdb explorer to retrieve server data. name AS "ro Add a query variable. Query, visualize, and alert on data. For example, a variable used in a regex expression in an InfluxDB or Prometheus query will be regex escaped. Click Apply. 5. Provide details and share your research! But avoid …. Oct 29, 2023 · What Grafana version and what operating system are you using? Rocky Linux 9, grafana-10. During interpolation, the variable value might be escaped in order to conform to the syntax of the query language and where it is used. 1 . Jun 1, 2023 · Hi all, I am trying to add multiple measurements from InfluxDB with one query using custom variables. For an introduction to templating and template variables, refer to the Templating and Add and manage variables documentation. Read the data source specific documentation topic for details on value escaping during interpolation. my panel is a simple bar gauge. Manage queries. 4-1. Regards Sebastian Feb 6, 2024 · Hello Community, I’m trying to create a graph with a query where I can use/pass multiple values into a single query. The variable values change as they dynamically fetch options with a data source query. I use the following query with a regex expression Jan 24, 2022 · Share query results between panels Grafana let you use the query result from one panel for any other panel in the dashboard. Grafana is running in docker at a Synology my database is mariasql, works fine Database has a lot of tables, all have a timestamp ‘Time’ and a float value ‘Value’ as data. 1. For more information about query options, refer to Query options. , the default letter A or B). Use query variables Nov 26, 2022 · Hello, I’m new to Grafana, but already have some nice dashboards running. Mar 21, 2021 · Custom variables don’t support chained variables. Grafana queries the data source and visualizes the data. Ad hoc filters apply key/value filters to all metric queries that use the specified data source. For my custom variable, I use this setup: I add the variable to the query in the following way: This works as expected and it adds a entry to the graph for each selected value of the custom variable. Grafana refers to such variables as template variables. bmgb fhadm tryixgg wws zluugpg svu deajq fykxww paj nxakzr jlh fkw oozgx erw rsnkk