label_values regex grafanalabel_values regex grafana

Additionally, you can extract labels from prometheus with the label_values function, which takes a label name and an optional metrics name parameter. data source. [FeatureRequest] QueryVariable: Add support for multiple label name values:: When I'm using Grafana templating: say I have: . First of all, make the data source a variable so that the dashboard is not limited to any specific Prometheus instance. Step 1: Install Prometheus Operator. Grafana Loki was inspired by Prometheus' architecture, which uses labels to index data. * and then another textbox to have either a regex (or at least a value list) to identify items i'd like to exclude from the variable's selection list. Visible label for variable. Dollar ($) matches the position right after the last character in the string. Open source grafana is one of the most popular OSS UI for metrics and infrastructure monitoring today. From a Grafana dashboard, click the Add panel button in the upper right. I wish to relate mysql_exporter series with node_exporter series. This matcher is totally opposite of Regular expression matcher . label_replace is a built-in function that will save our day. The Label field is the name of the label to match. Given a query result of two time series: Series 1: labels Server=Server A, Datacenter=EU The available operators are: Example of a label matcher regex: # The RE2 regular expression. In this example, log streams that have a label of app whose value is mysql and a label of name whose value is mysql-backup will be included in the query results.. . . For examples, see Filtering variables with regex.. Search: Grafana Variable Regex Example. If the regular expression doesn't match then the timeseries is returned unchanged. For this, I need two points of data: the temperature, and the friendly name of the sensor. Let's say that you were using a legacy system that produces metrics for JVM memory that looked like: memory_pools_PS_Eden_Space_committed memory_pools_PS_Eden_Space_max memory_pools . Every unique combination of label and values defines a stream, and logs for a stream are batched up, compressed, and stored as chunks. 作者: aymen matador 8 分钟前 . Capturing groups in the regular expression can be referenced with $1, $2, etc. Using named capture groups, you can capture separate 'text' and 'value' parts from the options returned by the variable query. Label values may contain any Unicode characters. How to extract label value to a variable in Grafana? Probably I can use for that the "Regex" field but I can't . [source: <string>] expression needs to be a Go RE2 regex string. Grafana templating: Regex for Prometheus label_values variables. Note, that Prometheus have stalled metrics, so deleted pods will appear in resulting grafana drop-down for about 5 minutes or kind of this. Changing any label value, including adding or removing a label, will create a new time series. I guess it's a simple workaround and that is to write the label value N/A or unknown so Prometheus can scrape and store that. Grafana.libsonnet works as an entry point and exposes all required functions and interfaces from the library files. This regex should work for any data with a single-character delimiter--just insert the real delimiter in place of each 'X' (and the string you want to exclude in place of "BAD"). Use when you want to display different name on dashboard. Note: The Custom all value option on the variable must be blank for Grafana to format all values into a single string. Variable of the type Query allows you to query Prometheus for a list of metrics, labels, or label values. Use the query_result(query) instead and extract the values using regex. When metrics come from another system they often don't have labels.

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