Grafana Prometheus Regex, For example, inste I’m trying to filter out panel using variables(job), it works but to clean the resulten drop down menu I have included regex to narrow down the output menu and once I do that the panels don’t work anymore. It's actually just selecting all the instances. 6 and i’m trying to extract some content from my data. I am trying to setup templating in Grafana using the label_values function. Below the query, click Expression. If you have Prometheus cluster as your central metrics platform for your servers and the applications, you might came across situations like, have to write custom queries for fetching the data from Prometheus or for creating custom visualisations in Grafana. Prometheus project documentation for Query examples In the Grafana charts, I'm interested in only showing the title, without quotes `Foo bar`. How do you use the wildcard in Prometheus query? Wildcards in queries Prometheus uses a Regex-like pattern and the wildcard character is . Code mode Each mode is explained in greater detail below. - ateska/dgx-spark-prometheus Master Prometheus and Grafana in 2026: architecture, PromQL, alerting, dashboards, service discovery, client libraries for Node. Sep 17, 2024 · Learn how to effectively use regex in Grafana queries with this comprehensive guide. I am a new developer in Grafana and I would like to have a query that returns a variable having &quot;CA&quot; at the END of its name. I'm using grafana and prometheus to query several metrics from different environments and instances/clusters. Use query inspector and check generated query syntax. +"} . I have a custom Grafana variable $var, which I use in my Prometheus queries to retrieve some data. Read the data source specific documentation topic for details on value escaping during interpolation. Tried Metrics :- {name=~“avalanche_metric historically, one of the prometheus has a metric - somemetric {location=region} how in Grafana can I cut off a prefix (someprefix_) from the variable $region and use it in the location label? I'm using google re2 regex for the purpose of querying Prometheus on Grafana dashboard. These will be the values of a grafana template variable. As far as I can tell, this can be done using grafana `filter by name` via Regex. Can anyone help me out with this ? Using the regex /. For more information about expressions, refer to About expressions. (Doing metric{label=~"(. Open the panel. The most common use of prometheus. So the query becomes http_status {job~="customer-. object {one="ab-vwxc",two=& Prometheus is an open-source systems monitoring and alerting toolkit that scrapes time-series metrics from instrumented targets, storing them locally and enabling powerful querying. Can you please help me? When the Multi-value or Include all value options are enabled, Grafana converts the labels from plain text to a regex compatible string. I ahve been reading Operators Prometheus and so far I was only able to get a positive sum where the negative doesn’t seem to work. I want to remove _custom_exporter from all the metrics being present on the Grafana dashboard. com:9100, etc. Here is the output that i get : Hey, I am trying to get the value cluster_uuid_0339812d-21b9-4879-b058-942c6c1ab12e_openebs-volumes 45 from my prometheus query result -> {job=“cluster_uuid_0339812d-21b9-4879-b058-942c6c1ab12e_openebs-volumes”} 45 1525027537000 . This will give me 3 results as shown below: sdc-5. example. How to get this regex from all label values? Now we us… Your query needs to first be structured to accept regex, so the front of the query needs to be like this: time_epoch{job=~ Notice the ‘~’ tilde ?? That’s VITAL… and oft’ forgotten. The documentation specifies the possibility to query label_values like: label_values(metric, label) In my use case there 102 Prometheus has an or logical binary operator, but what you're asking about here is vector selectors. The rule blocks are applied to the label set of each metric in order of their appearance in the configuration file. like ubuntu20_04 instead of ubuntu20_04_custom_exporter. I’m using a single (Prometheus/Thanos) data source - Grafana is configured to pull data from the Thanos query component. Learn how to set up Loki, ship logs with Promtail, write effective LogQL queries, and implement production-ready logging pipelines. Contribute to YuanH/grafana-alloy-config development by creating an account on GitHub. I was using SEARCH key code but it seems that it returns only Using regex to retrieve the Prometheus metric name from Grafana expressions Asked 7 years, 5 months ago Modified 7 years, 5 months ago Viewed 8k times Write an expression If your data source supports them, then Grafana displays the Expression button and shows any existing expressions in the query editor list. After this i used transform and regex functionality in grafana so I can transform the labels from long pathnames like /<apiname>/listusers/user/name to only get the first part of the pathname for example /<apiname> For each timeseries in v, label_replace(v instant-vector, dst_label string, replacement string, src_label string, regex string) matches the regular expression regex against the value of the label src_label. This does not work, as the $variable is interpreted as a part of the regex string instead of inserting the value. Feb 21, 2019 · What I'm trying to say is that it should select all the instances where the route doesn't match /api/docs/* (regex) but this isn't working. These values are generated from a Eclipse A comprehensive guide to using Grafana Loki for log aggregation and analysis. 3. We need to get some regex “ (appA|appB|appC)” from label_values (cpu_load,app) (or other method) for “all” variable value. They can return a list of metrics, labels, label values, query results, or series. My goal is to extract the value of label “label_chart”. When you send a query request to Prometheus, it can be an instant query, evaluated at one point in time, or a range query at equally-spaced steps between a start and an end time . But I would like receive only the FQDN (without a collon and a port number) . Based on the value of this variable, the label value of the metric I'm using should be changed accordingly. As far as I can tell, this can be done using grafana filter by name via Regex. Named capture groups in the regex support adding data into the extracted map. We’ll cover common pitfalls, step-by-step debugging, and advanced tips to ensure your regex queries work as intended in Grafana. Apply regex on uri label of prometheus metric Asked 2 years, 2 months ago Modified 2 years, 2 months ago Viewed 938 times How to use regular expression in the metric Grafana arugaki August 31, 2017, 4:08am 1 For example, on the same grafana dashboard, dedicated to mysql0x, I wish to visualize metrics about swap memory and buffer pool size. We’ve updated the Extract fields transformation with an additional RegExp format option you can use to perform more advanced parsing of the selected field, such as extracting parts of strings or splitting content into multiple fields using named capturing groups like /(?<NewField>. Dec 8, 2025 · This blog dives deep into troubleshooting `=~` and `!~` regex operators in Prometheus, with a focus on route labels. Trying to get value from key by below 3 types of possible input strings 1. Probably I can use for that the “Regex” field but I can’t I have been trying to figure out how to write OR function with prometheus inside Grafana. I want to filter variables to return me specific outputs. I'm trying to pass custom variables to prometheus via grafana variables. You may need to use advance variable formatting to achieve proper query. You can use a regex for this {job=~"traefik|cadvisor|prometheus"}, however that you want to do this is a smell. Which means you have to use =~ instead of =. I want the exact regex to extract for ex: Running::armada-api-5ff69858bd-npnl6 Running::cm-cert-manager-856678cfb7-fgbdb Running::cm-cert-manager-856678cfb7-x64v2 Running::cm-cert-manager-cainjector-85849bd97-7jbws Running::cm-cert-manager-cainjector-85849bd97-k4xtc Hello @all, I have Grafana v 7. js/Python/Go, and production best practices. Relabeling in Prometheus is a powerful tool that allows you to classify and filter targets and metrics. So I need to visualize the following series: We have a situation where we need to select the multiple values (instances/servers) from grafana variable field, and multiple values needs to passed to the Prometheus query using some regex, so tha Using regular expressions in Prometheus relabel_configs source_labels Asked 5 years, 11 months ago Modified 3 years, 4 months ago Viewed 7k times Yes, regular expressions can contain variables. Monitor use when deploying monitoring stacks including Prometheus, Grafana, and Datadog. Below are few sample metrics traces & regex which I have tried till now . + The variables are used in a qu Grafana supports several types of variables, but Query variables are specifically used to query Prometheus. *="((. It must be something in using the variables in the panel query but I’m not able to figure it out : This is my panel query working perfectly with variable (label_values(job)): ![Screen The regex stage is a parsing stage that parses a log line using a regular expression. To match same text multiple times you'll need to employ a trick: capturing groups inside of lookaheads. In the Operation field, select the type of expression you want to Templates and variables Filter variables with regex Filter variables with regex Using the Regex Query option, you filter the list of options returned by the variable query or modify the options returned. For example, a variable used in a regex expression in an InfluxDB or Prometheus query will be regex escaped. I know that I can use structure like: label_values({job="nodes"},instance) and I received something like: node1. + us. com:9100, node2. However, if there is an issue with the query while switching modes, a warning message will appear. yml and Querying it from grafana with: label_values (node_uname_info {server=~"$server"}, clusterdb) It gives me 1 value called: CLUSTER1,CLUSTER2 I need 2 separate values I can then select from my dashboard: CLUSTER1 CLUSTER2 All regular expressions in Prometheus use RE2 syntax. *)"} (. + (as a custom All variable) eu. Because this setting requires an additional call to the backend, it can be slower than the frontend fuzzy search when it’s turned on. Regex helps me to reduce number of queries in the grafana dashboard. Prometheus project documentation for Querying basics Prometheus provides a functional query language called PromQL (Prometheus Query Language) that lets the user select and aggregate time series data in real time. we have prometheus datasource and I’m stuck at trying to use custom variable with few values as comma separated values, I wanted to use it to replace as regex in the label_values(job=~$"{eks_cluster: In the Grafana charts, I’m interested in only showing the title, without quotes Foo bar. Each of these Prometheus instances has a number of ‘external_labels’ - one of which is ‘cluster’ which I use as I have several metrics with the label "service". The Prometheus query editor has two modes: 1. Trigger with phrases like "d 1359 نجمة | بواسطة jeremylongshore Grafana + Prometheus how to use regex in query metrics? Asked 5 years, 11 months ago Modified 5 years, 11 months ago Viewed 7k times I have below labels in prometheus, how to create wildcard query while templating something like “query”: “label_values(application_*Count_Total,xyx)” . For this purpose i am using the grafana pre-defined variable label_values. 2-HF01 sdc-5. *)/. Your application of alteration for regex is incorrect: in case of alteration only one of groups will be matched (text in your exact case). Boost your data filtering and visualization skills today. 2 i am using Prometheus as a data source to display metrics in a Grafana dashboard. Builder mode 2. Tool — Prometheus Tool — Grafana Tool — OpenTelemetry Tool — Object storage metrics (S3-like) Tool — Logstash/Fluentd (as pipeline monitors) Recommended dashboards & alerts for Loki Implementation Guide (Step-by-step) Use Cases of Loki Scenario Examples (Realistic, End-to-End) Scenario #1 — Kubernetes pod crash investigation my local grafana alloy config. I have created a variable called PQ. relabel is to filter Prometheus metrics or standardize the label set that’s passed to one or more downstream receivers. Grafana may add some “magic” formatting, which may generated different query. At the moment the Thanos query component has access to 2 Prometheus instances. +first. This optimization feature is for Grafana users that want to search their metrics with regex. A Prometheus metrics exporter for NVIDIA DGX Spark clusters. 17. I would like populate values for variable in templating using query (a datasource: Prometheus). Apr 21, 2021 · In my dashboard panel query, I would like to get the metric values from the labels per variable. + (read: dot plus) combined with tilde character ( ~ ) instead of just the equal sign ( = ). Using Regex to Match Values with Prometheus Vector Matching Asked 1 year, 9 months ago Modified 1 year, 9 months ago Viewed 222 times 1 This is more of the regex problem, then Grafana problem. The values I've got setup in grafana are as follows: . How do i put this in legend format? i should display only OS names. To use as filter variable for some metrics. The metrics explorer offers an additional setting to query the Prometheus API with a regex search. I’m new on Grafana and I’m trying to figure out how I can use a variable regexp in a Prometheus query My variable is about mssql instance name - sql_instance in server:instance format Hi, I’m new to Grafana so apologies if I’m missing something obvious. +)"} works for getting the two first labels) 4 days ago · Master Prometheus and Grafana in 2026: architecture, PromQL, alerting, dashboards, service discovery, client libraries for Node. This page shows how to use regex to filter/modify values in the variable dropdown. *) )*/ , I am able to get the result as cluster_uuid_0339812d-21b9-4879-b058-942c6c1ab12e Adding a label clusterdb: CLUSTER1,CLUSTER2 in my prometheus. I want to get a list of all the "service" levels that begin with "abc" and end with "xyz". As datasource i am using Prometheus and the type of variable is Query. I am not sure if i should use Regex or the filtering is supposed to be within the query itself . Hi Team, I am generating a dynamic metrics by using avalanche load testing tools & want to create a regex like this avalanche_metric_mmmmm__ so that I can cover all metrics with different numbers in one grafana dashboard so please help me to achieve this. 文章浏览阅读561次，点赞10次，收藏8次。可观测性是云原生系统稳定运行的关键能力，通过指标、日志、链路追踪三支柱联动，实现系统状态的全面监控。文章解析了可观测性技术栈的四大环节：数据采集层（Prometheus、Fluentd等工具）、存储层（时序数据库、Elasticsearch等）、分析可视化层（Grafana I want to shorten the metric name or i want to add particular part of the metric name to display it on the chart or table. Thanks in advance. Both modes are synchronized, so you can switch between them. ddmxw1, do9k, s3ft, dthgtf, ax0g, rgby, nkyk, lh45x, s5zcd, 2ocdrt,