Grafana variable query example

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grafana variable query example

Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm trying to get these names in the variable template in Grafana. I know this answer is a bit late but for anyone else hitting this issue, it's referring to the variable name set.

Not the variables that are returned from a query. Learn more. Query templating in Grafana with Elasticsearch datasource Ask Question.

Asked 1 year, 8 months ago. Active 1 year, 3 months ago. Viewed 1k times. Any help would be much appreciated. Active Oldest Votes. Jabe Hickey Jabe Hickey 48 8 8 bronze badges. Do you need those square brackets? Craig Bradley Craig Bradley 33 6 6 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Featured on Meta. Community and Moderator guidelines for escalating issues via new response….

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Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I have a Grafana dashboard with template variables for services and instances. When I select a service how can I make it filter the second template variable list based on the first? You can reference the first variable in the second variables query.

Learn more. How can I make a Grafana template with a variable reference another variable using Prometheus as a datasource? Ask Question. Asked 3 years, 2 months ago.

grafana variable query example

Active 11 months ago. Viewed 30k times. Active Oldest Votes. Firdousi Farozan Firdousi Farozan 2 2 silver badges 11 11 bronze badges. RezviyBelorus RezviyBelorus 1. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Featured on Meta.

Community and Moderator guidelines for escalating issues via new response…. Feedback on Q2 Community Roadmap. Technical site integration observational experiment live on Stack Overflow. Dark Mode Beta - help us root out low-contrast and un-converted bits. Related 1. Hot Network Questions.Learn about Grafana the monitoring solution for every database. Open Source is at the heart of what we do at Grafana Labs. Starting from Grafana v5. Recommended to be set to write frequency, for example 1m if your data is written every minute.

The following time identifiers are supported:. The database user you specify when you add the data source should only be granted SELECT permissions on the specified database and tables you want to query. Grafana does not validate that the query is safe. The query could include any SQL statement. To protect against this we Highly recommend you create a specific mysql user with restricted permissions. You enter edit mode by clicking the panel title, then edit. The query editor has a link named Generated SQL that shows up after a query has been executed, while in panel edit mode.

Click on it and it will expand and show the raw interpolated SQL string that was executed. When you enter edit mode for the first time or add a new query Grafana will try to prefill the query builder with the first table that has a timestamp column and a numeric column. To select a table or view in another database that your database user has access to you can manually enter a fully qualified name database.

grafana variable query example

The Time column field refers to the name of the column holding your time values. Selecting a value for the Metric column field is optional.

If a value is selected, the Metric column field will be used as the series name. The metric column suggestions will only contain columns with a text datatype text, tinytext, mediumtext, longtext, varchar, char.

If you use aggregate functions you need to group your resultset. You may add further value columns by clicking the plus button and selecting Column from the menu.

Multiple value columns will be plotted as separate series in the graph panel. You can remove filters by clicking on the filter and selecting Remove.Learn about Grafana the monitoring solution for every database. Open Source is at the heart of what we do at Grafana Labs. ClickHouse datasource plugin provides a support for ClickHouse as a backend database.

Install from grafana. Copy files to your Grafana plugin directory. Using of CHProxy will bring additional features:. Hint - if you need to cache requests like last 24h where timestamp changes constantly then try to use Round option at Raw Editor. First row FROM contains two options: database and table. Table values depends on selected database. Second row contains selectors for time filtering:. Column:DateTime or Column:TimeStamp are required for time-based macros and functions, because all analytics is based on these values.

Raw Editor allows to type queries, get info about functions and macroses, format queries as Clickhouse do. Under the Editor you can find a raw query all macros and functions have already been replaced which will be sent directly to ClickHouse.

If some additional complexity is needed - just copy raw sql into Raw Editor and make according changes. Remember that macros are still available to use. If you add a template variable of the type Queryyou can write a ClickHouse query that can return things like measurement names, key names or key values that are shown as a dropdown select box. For example, you can have a variable that contains all values for the hostname column in a table if you specify a query like this in the templating variable Query setting.

The options in the dropdown will have a text and value that allows you to have a friendly name as text and an id as the value. An example query with hostname as the text and id as the value:. You can also create nested variables. For example if you had another variable named region. If you are using templating to feed your predicateyou will face performance degradation when everything is selected as the predicate is not necessary. It's also true for textbox when nothing is enteryou have to write specific sql code to handle that.

If the variable is type query with all selected or if the variable is a textbox with nothing enterthen the SQL Predicate is not included in the generated query. To create "Top 5" diagram we will need two queries: one for 'Top 5' rows and one for 'Other' row. There are no any tricks in displaying time-series data. To print summary data, omit time column, and format the result as "Table". If you are using geohash set following options:. If there is an Ad-hoc variable, plugin will fetch all columns of all tables of all databases except system database as tags.

So in dropdown menu will be options like database. If the default database is specified, it will only fetch tables and columns from that database, and the dropdown menu will have option like table.

If there are ENUM columns, plugin will fetch their options and use them as tag values.Learn about Grafana the monitoring solution for every database. Open Source is at the heart of what we do at Grafana Labs. Recommended to be set to write frequency, for example 1m if your data is written every minute. The following time identifiers are supported:. The database user you specify when you add the data source should only be granted SELECT permissions on the specified database and tables you want to query.

Grafana does not validate that the query is safe. The query could include any SQL statement. If possible, we recommend you to use the latest service pack available for optimal compatibility.

Using Microsoft SQL Server in Grafana

You enter edit mode by clicking the panel title, then edit. The editor allows you to define a SQL query to select data to be visualized. To simplify syntax and to allow for dynamic parts, like date range filters, the query can contain macros. We plan to add many more macros. If you have suggestions for what macros you would like to see, please open an issue in our GitHub repo. The query editor has a link named Generated SQL that shows up after a query has been executed, while in panel edit mode.

Click on it and it will expand and show the raw interpolated SQL string that was executed. The table panel will automatically show the results of whatever columns and rows your query returns. If you set Format as to Time seriesfor use in Graph panel for example, then the query must have a column named time that returns either a SQL datetime or any numeric datatype representing Unix epoch in seconds. You may return a column named metric that is used as metric name for the value column.

Any column except time and metric is treated as a value column. If you omit the metric column, the name of the value column will be the metric name.

You may select multiple value columns, each will have its name as metric. If you return multiple value columns and a column named metric then this column is used as prefix for the series name only available in Grafana 5. When above query are used in a graph panel the result will be two series named Metric A and Metric B with value of valueOne and valueTwo plotted over time. When above query are used in a graph panel the result will be two series named valueOne and valueTwo with value of valueOne and valueTwo plotted over time.

When above query are used in a graph panel the result will be two series named Metric A and Metric B with an average of valueOne plotted over time. Any two series lacking a value in a 3 minute window will render a line between those two lines. When above query are used in a graph panel the result will be two series named Metric A and Metric B with a sum of valueTwo plotted over time.

Instead of hard-coding things like server, application and sensor name in you metric queries you can use variables in their place. Variables are shown as dropdown select boxes at the top of the dashboard. These dropdowns makes it easy to change the data being displayed in your dashboard.

Check out the Templating documentation for an introduction to the templating feature and the different types of template variables.

If you add a template variable of the type Queryyou can write a MSSQL query that can return things like measurement names, key names or key values that are shown as a dropdown select box. For example, you can have a variable that contains all values for the hostname column in a table if you specify a query like this in the templating variable Query setting.

A query can return multiple columns and Grafana will automatically create a list from them. For example, the query below will return a list with values from hostname and hostname2. The options in the dropdown will have a text and value that allows you to have a friendly name as text and an id as the value.Learn about Grafana the monitoring solution for every database. Open Source is at the heart of what we do at Grafana Labs.

Grafana ships with advanced support for Elasticsearch. You can do many types of simple or complex Elasticsearch queries to visualize logs or metrics stored in Elasticsearch. You can also annotate your graphs with log events stored in Elasticsearch. Access mode controls how requests to the data source will be handled. Server should be the preferred way if nothing else stated. The URL needs to be accessible from the browser if you select this access mode. If you select Browser access you must update your Elasticsearch configuration to allow other domains to access Elasticsearch from the browser.

You do this by specifying these to options in your elasticsearch. Here you can specify a default for the time field and specify the name of your Elasticsearch index. You can use a time pattern for the index name or a wildcard. Be sure to specify your Elasticsearch version in the version selection dropdown.

This is very important as there are differences on how queries are composed. Currently the versions available are 2. The value 5. The value 6. Finally, 7. A lower limit for the auto group by time interval. Recommended to be set to write frequency, for example 1m if your data is written every minute. The following time identifiers are supported:.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here.

Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. The All variable works as expected, and the raw eu. I've tried escaping and without in the custom values, but in for both of the custom values no metrics are returned.

Learn more. Passing regexes to prometheus query via grafana variables Ask Question. Asked 5 months ago. Active 5 months ago. Viewed 97 times. I'm trying to pass custom variables to prometheus via grafana variables.

The values I've got setup in grafana are as follows:. What is wrong here? Active Oldest Votes. Oliver Oliver 5, 2 2 gold badges 23 23 silver badges 33 33 bronze badges. Sign up or log in Sign up using Google.

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