Grafana regex syntax (I can’t imagine we’re the only persons trying to achieve this. 0/24. New replies are no longer allowed. Learn about different types of variable syntax. But I don’t know what Regex to use. How it works ? Newcomer to Grafana here. I am able to see the logs (in the example below it’s nginx’ access. All visualization solutions. Syntax ¶ The regular expression syntax understood by this package when parsing with the Perl flag is as follows. For example, if these two are the targets that I have: d-bns-teaut-12. I think we could definitely use more examples, so I mocked up your query with CSV data and a bar chart to show an example of how you could remove the end of There are two line filters: |= "metrics. go" and !="out of order". Regex in Grafana templating help. Find any trace with a deployment. Your application of alteration for regex is incorrect: in case of alteration only one of groups will be matched (text in your exact case). The regex engine compiles the pattern lo into internal representation. Here I have attached the screen shot of the grafana explore of Loki data. From the example shown in the picture I get the following query : SELECT “A”,“B”,“C” FROM “Measurement 1” WHERE time >= now() - 1h However I would like my query to be : SELECT I want to create a variable in grafana that queries all Subscriptions but filters subscriptions that start with a specific text. New Relic. Path: Copied! Products Open Source Solutions Learn Docs Company; Instantly connect all your data sources to Grafana. someone please helps me. Similarly, if include filed is empty, do nothing, otherwise include lines that contain the regex in include field. Probably I can use for that See Lucene query syntax and Query string syntax if you are new to working with Lucene queries in Elasticsearch. Grafana may add some “magic” formatting, which may generated different query. Each data source uses a different query Hi all, I’m using tha last online grafana version (cloud version) It’s the first time that I use google sheet as data suorce I know there are limitation Newcomer to Grafana here. By default, queries run against data from the last hour. So I just start bin files of these applications. By eliminating the need for complex regex patterns, users can create queries using a more intuitive syntax, reducing the cognitive load and potential for errors. expression =~ /regex/ expression!~ /regex/ Examples I am unable to understand how the regex filtering works. This is especially powerful if we can chain it with {{term fieldname}} so as to transform terms values !!! Currently, I am considering a method to replace patterns within a Grafana variable, so the message "ERROR: Bill: SetErrorClass[SerialPort]: SYNC failed" would appear as "ERROR: Bill: SetErrorClass\[SerialPort\]: SYNC failed", thus making the variable play nicely with regex in the subsequent dashboard. So I recommend you to do it the other way around. As you can see, it’s not working. com:9100, node2. How to use variables in grafana as full match not as regex? 0. 2 to Grafana v9. See here: prometheus. “httpbin rate limiting”) or a minus (e. To access the Search query builder, use the following steps:. I am currently using Grafana v9. Single characters: Hello, I administrate many servers where on every server run from one to many apps. With regexp, I can use queueLen= [3-9][0-9]{2} to filter as I want. However, this logfile contains different types of messages, and therefore I need to use different regex expressions for different types of messages. Edit. Prometheus: query builder, handle regex in parentheses for label filters value #78238 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. Need help in resolving this regex issue under the parsing stage. Can you help me , how to exclude below hosts on templating regex Grafana Loki pattern syntax error: unexpected IDENTIFIER. (. Is there a special syntax that Grafana - Regex on Variables . Can someone help me? Thanks. zigbee2mqtt. Basically my pane's legend names are in the form of: somestring_someotherstring_somethirdstring. go” and do not contain the string “out of order”. log): However, when I’m trying to run any query expression, even th In Grafana Loki, the selected range of samples is a range of selected log or label values. 3? I’m not clear on where pattern parser should replace the promtail regex expression needs to be a Go RE2 regex string. You can specify pre-defined filters of ec2:DescribeInstances. Manage organizations. 142. ahmad,. In version v8, a regex pattern for variables was something like ^(abc-). I know I have to use the Golang Syntax. *)/ could be used in the label as \1:L\2 Try something like this: sum by (domain, url, method) ( count_over_time( <YOUR_QUERY> [$__interval]) ) You can even slap topk on top: topk(10, sum by (domain, url This topic was automatically closed after 365 days. Here is a regular expression I worked on regex101: build, test, and debug regex. For details, refer to the variable syntax documentation. 1. In addition to PromQL, Prometheus provides a scraper that fetches metrics from instances (any application providing metrics) and a time series database (TSDB), which stores these metrics over time. In this case, my goal is to take the message from snort alert. My current variables are I have created a template which enables me to select a particular device to populate the chart, which works fine except the dropdown includes an item that I don’t want to show. city. environment attribute that matches the regex prod-. regex The regex stage is a parsing stage that parses a log line using a regular expression. Therefore while templating with variables whose values are dynamically populated by Hi, I am setting up the metrics for Loki logs, so I can use {job=“abc”} !~ “error” to find any logs starts with error But sometimes the log data can be Error, or ERROR, so how do I use this |~ operator to query the logs with case insensitive? In regex, we can use /^data/i to make it case insensitive search, but this operator is using double quote “” and I tried to include /i, it There is a syntax sub-package that allows users to parse a regex expression and access the abstract syntax tree. Of the log lines identified with the stream selector, the query results include only those log lines that contain the string “metrics. Access_Ports; Input_IFCount. Hello, I was looking into Grafana docs, and in this link regex | Grafana Loki documentation it says that Grafana Regex engine is based on “RE2” syntax and it seems this syntax did not support conditional operators. Most clients of regular expressions will use the facilities of package regexp (such as regexp. Would also need to handle an “all” condition, too. g. In addition to the dropdown list, variables can display as text boxes at the top of a dashboard for easy access (though, can optionally be hidden from view). The string is: abc_join_status{instance=“snhucs01. These values are generated from a Eclipse 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> Also notice that here used subquery syntax instead of usual range selector. Do I don’t understand logical steps in this querry? The same regexp works fine with promtail label but having such label does not make sense. io Querying basics | Prometheus. Query syntax. log): However, when I’m trying to run any query expression, even th I have the following match stage in my Promtail configuration: - match: selector: '{loglevel="ERROR"} !~ <bunch of regex> | type != "usage" and type != "repair The documentation grafana on the use with InfluxDb (Using InfluxDB in Grafana), it is mentioned the possibility to use as alias pattern: You can also use [[tag_hostname]] pattern replacement syntax. Regex /. Down_Ports; Input_IFCount. You are using the right one to test out regex via that website and just select Golang as flavour. Here I'm using Prometheus, but again the actual query and datasource does The regex type is based on Golang as the backend code is written in Go while the Frontend is in Typescript. The issue is that wherever the regex I put in the text box it doesnt seem to filter what Every query searches the data for the selected time frame. logfmt { mapping = { "extracted_level" = "level" } } stage. Difference in that [$__range] can be applied only To match keyspace in org. exe -config. Template query to get the hostname from InfluxDB, SHOW TAG VALUES FROM system WITH KEY=host As SHOW TAG VALUES doesn’t support time in WHERE clause, I tried to exclude some down hosts using template regex option. it is a combination of Variable syntax | Grafana documentation. metrics. However, even though I write this in the regex section, it sends all the logs. ; Use match stage to match the group I would like to use the following RegEx, that works on Regex101, to work like this: RegEx: /^[1-9][0-9]*$/ 0 - Will not match 12 - It will match. If you’re using 8. Transformation using regex. 3: Grafana uses the RE2 regex syntax, which is similar to Perl regular expressions. @alencappelletti what version of grafana are you using, alerting has a couple of flavors depending on your version. I guess we have to use a query here: Related to @torkelo's comment in #13600 and @marefr's PR review comments #13801 (review). Yes, regular expressions can contain variables. Jira. */ means capture 'stress' in any position in string. For advanced syntax to override data source default formatting, refer to Advanced variable format options. and. And here is an example, using your data. msg}}" this gives me a log line like this for example: Job Nr: 6, ID: 4t9UV3ngr5_0mu4toV8UB has completed in Hello Folks, I would like to extract the IP address or the hostname from the list of targets that I have. I am using Grafana together with Prometheus to display data of my Pods from Kubernetes Cluster. *banana should return 2 matches but I can’t make it work. {node=“tcampus-reception”} but when i use unwrap to handle the label which it contains in my query, it shows syntax error: unexpected unwrap so what is unwrap use for?do i use in wrong way? I have grafana+loki+promtail configured, and everything seems to be working fine. If you are successful, please post your solution back here so others can find it in the future. The same applies to =, but without ‘match exactly’: only if the value is the same as ‘something’. Sign into Grafana. There are definitely alerts firing and these can be matched with the full alertname. Non-tag queries use the default glob formatting for multi-value variables. Select comparison operators from the following options: = - equal to!= - is not equal =~ - matches regex!~ - does not I have created a template which enables me to select a particular device to populate the chart, which works fine except the dropdown includes an item that I don’t want to show. But I would like receive only the FQDN (without a collon and a port number) . Modified 7 months ago. The ATTRIBUTE_VALUE can be either a constant value of a valid River type (for example, a string, boolean, number), or an expression to represent or compute more complex attribute values. Viewed 11k times Try this out on regex101. fgxxxx-redis-* which I don't want. I was using this syntax to iterate through my variable, but if you prefer, we can use the simpler syntax for testing. 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; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I am working on grafana and try to find a regular expression which can match any of the below scenario. I want to send only the ERROR log. Regex in Grafana queries provides powerful data filtering and extraction capabilities. Problem: once the color has been determined, I want to remove the special character. Grafana Go regexp package. Create another query variable called “AppInstances” that is essentially a copy of the “Instances” query variable, but would include a Regex to extract only the “ip-”+the ip address itself. Use ec2_instance_attribute Filters. ; dropequal - Drop targets for which the concatenated source_labels do match target_label. Make sure your regular expression is valid. Use the =~ operator to match your regular expression. UQL also provides ability to customize the results. The ec2_instance_attribute query takes filters as a filter name and a comma-separated list of values. Around the same time, the Prometheus project started to gain steam, but it wasn’t clear whether it should be added to Grafana. Select attributes Select labels and their values from the dropdown list. SQL query editor. The regex should - exclude all values starting with "$. file, however do note that positions config is not used and only the first scrape config is used. All. Device: ([A-Za-z][0-9])} however it doesn’t replace the fields. table\. ; hashmod - 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; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Seems simple enough, but having a hard time finding the syntax to complete the query. kurianmathew10 October 20, In the official Loki Grafana documentation a pattern parser is mentioned: However there are no additional resources on the parser online. You have to specify the field, i. So in my own examples, I have: Input_IFCount. *(stress). 4: 15386: September 30, 2022 Dashboard Query Variable with Regex is not consistent with filtering and @alencappelletti what version of grafana are you using, alerting has a couple of flavors depending on your version. What am doing: I am querying a datasource using variable feature to pull some data to use for filtering. Alternatively, piping the series names through something like sed would allow me to achieve the same behaviour: Hi, I am trying to extract the particular field which has any-date value. the filed name is last_state_change. com/docs/grafana/v9. labels { values = { "level" = "extracted_level" } } forward_to = [loki. and maybe something in this thread to help you get the Regex syntax correct. Basic where clause with InfluxDB and Grafana. Some results I see by default are like: Dig-dev, Dig-uat, Dig-prod, ndr-eu-pp-dev, ndr-eu-pp-uat, ndr-eu-pp-prod Let's say I only want the results that start with ndr. Grafana lets you define dashboard variables that appear as drop downs at the top of your dashboards. for now i got this far: {container_name=~". Match) instead of this package. Thanks for your help! Romain When I try to configure my dashboard variable which uses a regular expression to filter the labels, the UI shows errors while typing the regex and the regex is also malformed by the UI. table_name proper regex is org\. as you can see, i have logs in my query. In pipe mode Promtail also support file configuration using --config. I have grafana+loki+promtail configured, and everything seems to be working fine. static_configs: can be used to provide static labels, although the targets property is ignored. used 0 1608582030 disk_usage. But as soon as the value contain any special characters like a space (e. I have found that (Regex) coding /^!/ will successfully find any Im trying to extract subject as label from mailbox file. GitLab. Your users can then use these drop downs to specifiy which metric series instances they actually I am concatenating a special character to the front of a field-value to trigger whether I need that field to be highlighted (color change). Problem statement: The thing is the result from query I am getting is a single line string with values separated by a comma. 2. I am trying to stack results, and using regex in the query, but am having a problem when running: SELECT __timeEpoch(time_stamp), retry_percent as value, config_name What Grafana version and what operating system are you using? Windows 2019 Server What are you trying to achieve? I have some variables I’ve created that need to be converted to uppercase to be pushed into a query I am doing against Log Analytics Workspace. thanks for the quick reply. View organizations; Update an organization; Delete your organization; The following is the basic regex comparison syntax: Basic regex comparison syntax. 2. When composing Lucene queries, ensure that you use uppercase boolean operators For general documentation on querying data sources in Grafana, including options and functions common to all query editors, see Query and Here are some ways you can use regex in Grafana: Regex replace: Replace parts of a string that match a regex pattern. Metric Insights uses a dialect of SQL and this query syntax: The ID can include numbers, letters, and underscore, and must start with a lowercase letter. This will enable you to use regular expressions in your query. 168. I tried some other options. artemis" OR Values starting with "notif. Prometheus: query builder, handle regex in parentheses for label filters value #78238 HI I am using grafana to plot the graph from Elasticsearch data. corproot. I’m trying to setup variables to only match certain interfaces on cisco switches. 02. Use query inspector and check generated query syntax. Is it still in development? If not from which version is it available? I’m trying to extract a status code field from a log line similiar to the one in the documentation without using the regexp parser: 0. */ But the issue here is it matches only the second one along with some other values like . I tried to use the example on Grafana official website, but that it’s not working. For example, If the Exclude field is empty, I would want it to do nothing, otherwise exclude lines that contain the regex in Exclude field. \]*)\. for instance i want to replace all , with | and { with ( and } with ) so that i have a regex to match against all these different urls. Hi, My time series database object is xxxx. xxx In fact, I want to use regex to match the two number in the middle. yetanotherstring Multi-value variable called TemperFurnaceNumber in Grafana and regex query in Flux: image 950×321 24. the column device_name, use Regex as type for Match and then Learn about different types of variable syntax. (\[^. I would love to see a “translate” type of template variable in Grafana. group 1 and 2 in regex /(. Loki supports two types of range vector aggregations: log range aggregations and unwrapped range aggregations. Blocks. My variable looks like this: I now want to select the id part after test via an InfluxDB query. Every capture group (re) will be set into the extracted map, every capture group must be named: (?P<name>re). The regex should - exclude all values starting with "$. *)/ And the alias as this (or similar): \1 \2 Which would give me exactly the aliases I want. The repeating works fine, but I also need to show or hide data in the graph based on the same variable. *"} |= has completed in | json | line_format "{{. artemis" OR Values starting with "notif. The extracted data can hold non-string values, and this stage does not do any type conversions; downstream stages will need to perform correct type conversion of these values as necessary. A better choice uses a regexp: |~"^3. 2 Likes oalimerko October 7, 2021, grafana uses golang regex syntax: you can experiment here: Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, I want to write a regex in the variables page for a query. Select string FROM in Grafana InfluxDB. The label_values query, as described in Grafana documentation, takes either a label name or a label name and a metric name. Difference in that [$__range] can be applied only Instantly connect all your data sources to Grafana. You can add multiple labels. This regexp does not handle IPv6 addresses, and it does not match a range of IP addresses. 4. Regex might seem complex Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/. By expanding a span in the Grafana UI, you can see both its span attributes (1 in the screenshot) and resource attributes (2 in the We’ll demo how to get started using the LGTM Stack: Loki for logs, Grafana for visualization, Tempo for traces, and Mimir for metrics. i have a log comming in from loki where i need to extract a string from a json value. file=promtail-local-config. Follow then you have to use the normal target expression syntax, in which case wildcards cannot cover indeterminite levels. *ERROR). png” or “. 0 and higher. dev. e. PromQL is the querying language that is part of Prometheus. Reference: this issue this comment. Mock logic below: Use regex to group capture string oom-killer. It would have been easy for me if my targets were either all in IP or all in FQDN Here is the variable syntax to be inserted into queries /^${org_wsdl:raw}$/ Thanks again. MySQL. */, but "stress-grpc" and "stress-go-grpc" are not. Path: Instantly connect all your data sources to Grafana. Picture showing that "stress" is matched (although it doesn't exist) for regex /. The aggregation is applied over a time duration. * to cover as Instantly connect all your data sources to Grafana. It seems that a change has been made to support using template variables from within Transformers. Prometheus. *)/}} ) would allow more readible series names (here, only "idle", "user", "system"). For an overview of the syntax, see the regexp/syntax package. Use Grafana’s variable syntax to include variables in queries. 4: 2038: January 16, 2018 Home @yosiasz I see this page mentions the correct spacing, but have not seen any mention of how to extract the key or value. root. 71. Not sure if this is the same thing you're talking about but the same queries I make in Kibana, do not work in Grafana. I know there is not a LIKE feature as in SQL, but not sure what the best path would be. It should be possible to achieve this using match, but I am having trouble Regex stands for "regular expression," and it's a powerful tool for pattern matching and text manipulation. 43. What would work for me is to use the field override and show the field based on the result of a regex that uses the variable. For example: With regexp, I can use queueLen= [3-9][0-9]{2} to filter as I want. Grafana Regex fiter by name. Datadog. 2 - - [10/Jun/2021:09:14:29 UQL Parser. The template variable-checking in template_srv is not working with the new syntax, ${variable} or ${variable:csv}. I tried to push into an index with this data that was made based on the documentation in Node graph | Grafana documentation But the thing is, the data is not shown. At least that’s the format we used and it Basic Syntax and Patterns of Regular Expressions. Within the pattern syntax the <_> serves as a wildcard, representing any arbitrary After some code research I can say, that there are no any bugs and regex capturing is working as expected and described in documentation @dprokop pointed out. The Graphite data source supports two variable syntaxes for use in the Query field: a regex in alias pattern (like {{regex /cpu. An example legend value is Host: server1. It would be very useful if the regex filter can dynamically react to user defined variables, making dashboards to be more There is quite a big difference between this pattern expression and the regular expression. 3". Did you follow any online instructions? If so, what is the URL? No. 12. NET, Rust. 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 I know it is quite new topic so there are almost no docs anywhere - if I understand correctly regexp here comes with loki 2. “httpbin”), I can use it without any problems in the chart. I created an event. How can I use variables with regex, or maybe use a string array? Not sure if this is still relevant, but I was able to solve a similar issue on my end by specifying additional format In Grafana, you can filter and modify data using regex patterns in the Transformation tab of the Query Editor. 26@2x] Here is my rather ugly regex with a capture group for the user IDs: [CleanShot 2021-09-28 at CMD: promtail-windows-amd64. The LogQL support for matching IP addresses handles both IPv4 and IPv6 single addresses, as well as ranges within IP addresses and CIDR patterns. example. Oncrawl uses Regex for our segmentation tool or within the data explorer to filter your results. Because of how YAML treats backslashes in double-quoted strings, note that all backslashes in a regex expression must be escaped when Hi @murarisaranvikas, welcome to the community!. They come through unfiltered like this: test-app (4) test-app-2 (5) test-app-app (3) You can also use the [[tag_hostname]] pattern replacement syntax. templating, query-help, observability, regex. xxx. UQL is an opinionated query language designed for in-memory operations. The TraceQL language uses similar syntax and semantics as PromQL and LogQL, where possible. For example, let’s say your label is “unwanted=wanted”, you can use regex matcher {(?:. Grafana Labs LogQL Analyzer | Grafana Loki documentation. apache. For example, a variable used in a regex expression in an InfluxDB or Prometheus query will be regex escaped. AppDynamics. It's not working when using Value Mapping, on Grafana tho. So if regex capturing were possible with Grafana, then I would be able to put the series regex as this: /(. 61:9100, what I want to extract is d-bns-teaut-12 and 10. If you found a solution, please share. Grafana supports the SQL query language in InfluxDB v3. Grafana - Using a variable as regex in Prometheus query. . But, in Grafana, this query doesn't work. 3: LogQL pattern parser makes it easier to extract data from unstructured logs | Grafana Labs) in Loki 2. Match IP addresses with the syntax: ip("<pattern>"). P. *)="(. /. 212. 26@2x] Here is my rather ugly regex with a capture group for the user IDs: [CleanShot 2021-09-28 at 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> Also notice that here used subquery syntax instead of usual range selector. Or even to group by those extensions. A query is a question written in the query language used by the data source. This introduction to PromQL will be largely decoupled from specific tools and the non-PromQL parts If you use the regular expression =~, the query expects a parameter of type /^something$/ to exactly match the value ‘something’. I went to update the documentation (first-time open source contributor here). For extracting fields from the log messages, I am using the regex stage. You construct your SQL query Yes, that's true. It could also support regex replacement syntax with grouping, such that e. Now, it starts matching lo to Hello World! input string, the engine tries to match the first token in the regex l to the first character H. Hi, I am using promtail to push messages from a plaintext logfile to loki. FreeNAS has got an integrated collectd - nothing to configure here but the hostname or address of a remote Graphite server. BTW: Looks like I have 2 accounts here assigned to my github account Weird. value-mapping, regex. this is my promtail configuration scrape_configs: - job_name: system static_configs: - targets: - localhost I'd like to use grafana to filter values by name: This is an example of my keys and values: disk_usage. pipeline_stages: - match: selector: Here is the variable syntax to be inserted into queries /^${org_wsdl:raw}$/ Thanks again. There are no other possible permutations of this regex, because it merely consists of a sequence of literal Hello, For unstructured logs (from Microsoft IIS) should I (still) have a regex pipeline stage in the Promtail config, or should I just count on the newer [pattern parser](New in Loki 2. 21. Choose a variable syntax. This is more of the regex problem, then Grafana problem. Test with RegEx ^([1-9][0 Multi-value variables in tag queries use the advanced formatting syntax for variables introduced in Grafana v5. Previous to this all colors are Hi all, I’m rather new to Grafana and just started to toy with a PoC graphing my home FreeNAS system. cassandra\. These are SQL audit logs related, and it unfortunately case sensitive. object{one="ab-vwxc",two=& I use the last versions of: Prometheus prometheus-cpp library Grafana Loki Promtail in Windows 10. below show how to set up a link that can run metrics query for the host included in each log line with provisioning and regex transformation 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; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Grafana - Regex on Variables . However, the Filter by name transformation regex does not recognize the variable syntax. After all, Grafana was a Graphite frontend, it was uncertain at the time if Prometheus would take off in popularity, and it would take If you enable the Legend on a specific Graph then the chosen “measurement” will be displayed per default. The same rules that apply for Prometheus Label Selectors apply for Grafana Loki log stream selectors. Write The concept is to use named groups with the (?<groupname> ) syntax. So for the reverse of that it would be !~. I have created a repeating panel based on a variable. Especially for InfluxDB and Prometheus where the use of regex syntax requires that the variable is used in regex operator context. Pattern Filter not only enhances efficiency but also simplifies the process of writing LogQL queries. metrics\. It should be possible to achieve this using match, but I am having trouble Hello, I am requesting an influx Database based on the field and measurement directly selected from panel variables shown as drop downs (result from query on the DB). Variable syntax Note: To create and manage variables in Grafana, you need either editor or admin permissions. This “instance” variable will be exposed to the user and they can select one or more of the IP addresses from a drop down list. The variable for “Type” is shown below, and I have tried excluding “device” by using To match keyspace in org. I envision a table interface with two column where you could define the before and after of values. I also tried drops. Here it is simple string pattern so it would be the same. *) api\/xyz\/?(. Date appears in this format - > 1970-01-18 16:05:43 i have written regexp to parse the date for the above Line filter “or” syntax Loki’s line filter syntax is great to find specific substrings of your log lines. keyspace. 61. If you don’t provide any scrape_config: a default one is used Use value mapping with Regex: Configure value mappings | Grafana documentation. 4: 2292: April 13, 2022 Templating with complex MySQL formula. The regexp implementation provided by this package is guaranteed to run in time linear in the size of the input. 9. yosiasz July 12, 2023, 3:33pm 6. They come through unfiltered like this: test-app (4) test-app-2 (5) test-app-app (3) I am concatenating a special character to the front of a field-value to trigger whether I need that field to be highlighted (color change). But, you can use the regex field inside Grafana. Parts of the syntax can be disabled by passing alternate flags to Parse. selector: <string> # Names the pipeline. If you are just trying to change the label for better display on dashboard, try using Grafana’s transform functionality: Click on Transform, and select Rename by regex. 7 and ElasticSearch 8. Within the pattern syntax the <_> serves as a wildcard, representing any arbitrary Hi there, I’m using promtail 2. This introduction to PromQL will be largely decoupled from specific tools and the non-PromQL parts Grafana; Chronograf; Kapacitor; Postman; ThingWorx; Administer InfluxDB Cloud. IPv4_Source:192. ; Use match stage to match the group If you use the regular expression =~, the query expects a parameter of type /^something$/ to exactly match the value ‘something’. “httpbin-rate-limiting”), I get a parsing the =~ operator is doing a regex (regular expression) matching. When you select a label, Grafana retrieves available values from the server. And it works perfect if I am testing it After some code research I can say, that there are no any bugs and regex capturing is working as expected and described in documentation @dprokop pointed out. * should match anything. Hi everyone I have Grafana v 7. Since all data processing now moved to the bakend, regexps evaluated in Go. Here I am displaying Memory Usage for each Pod by name: sum (container_memory_working_set_bytes{name Use Metric Insights syntax. Actually, my goal is to send only ERR and INFO logs to Loki. xxx xxxx. And in Grafana create filter according AppX name. apache\. Splunk. It does not take a match to do whatever you wanted it to do. " Since neither fit the regex, 'No data' is returned. " Hi all - I’m trying to regex a part of a variable in Grafana/InfluxDB. I have a panel that needs to display a subset of data from another panel, based on the value of a Client variable. 5. Oracle. The docs are very limited on this feature. It's a sequence of characters that defines a search pattern. receiver] } This works but unfortunately, somehow Alloy reports lots of logfmt errors: msg=“failed to The ATTRIBUTE_NAME must be a valid River identifier. You use Blocks to configure the Grafana Agent’s behavior as well as Grafana Agent Flow components by I tried to exclude some hostname from the templating output. Regex Editor Community Patterns Grafana - Zabbix Integration uses these items to poll for data. Improve this question. Read the data source specific documentation topic for details on value escaping during interpolation. Hello, I would like to display node graph in my dashboard using ElasticSearch as the data source. This post in the community has a lot of great information about how to use the value mapping feature with regex to edit values that show up in your graph. The LogQL Analyzer is an inline educational tool for experimenting with writing LogQL queries. Search, filter and view user submitted regular expressions in the regex library. 9 KB |> filter(fn: (r) => r["EquipNumber"] =~ /^${TemperFurnaceNumber:regex}$/ ) Inspect >> Query: 1 Like. I am trying to query some project names derived from our Sentry datasource. To filter the results of a column you have to use Filter data by values. For example, a variable used in a regex expression in an InfluxDB or Prometheus query will be regex escaped. original as my own variable to collect data from elastic search and now I can see my logs. I am trying to do this with regexReplaceAll but I can’t seem to I have configured a variable for my Grafana dashboard. write. MongoDB. Hello community! The RegEx expression . Important to note is that Grafana uses Golang flavour of Using the above template variable with Regex I can extract file extensions to show things like “. Platform: Linux | Windows Version: Grafana 9. This idea should be correct, right? Why can’t the grafana panel recognize the regular expression of numbers? Or is there a better way to solve this matching problem？ Grafana uses the RE2 regex syntax, which is similar to Perl regular expressions. *)"} and $1 as the replacement. This site is great for checking what regex would match. This operator is used to compare a metric value against the regular expression. Loki defines Time Durations with the same syntax as Prometheus. * You can test it by yourself, it only matches any other line but ERROR. Master key regex operators and syntax for effective pattern matching. Regex filter: Filter data points based on a regex pattern. Expressions work with data source queries that return We recently upgraded from Grafana v8. ) I’m working with the Grafana Agent Flow, but syntax looks exactly the same so I wouldnt be surprised what works for you would work for me (and the other way as well). Ask Question Asked 2 years, 5 months ago. Both applications use Lucene but Grafana doesn't seem to like regex queries. 7 and I have a specific use case with promtail. The variable for “Type” is shown below, and I have tried excluding “device” by using When Grafana started in 2014, its main goal was to be a great dashboarding solution for Graphite. But I don’t know all the possibilities other than CRIT and WARN, so I don’t know what to drop. read_latency\. Any help will be appreciated. Over 20,000 entries, and counting! Regular Expressions 101. eg: INC001,INC002,INC003,INC004 The twist here is, I want the result as an array of values But here I’m still trying to figure why the regex doesn’t pick. I copied your string value, but not exactly [CleanShot 2021-09-28 at 13. * It matches predefined prefix (while escaping dots, as the have special meaning in regex), and then it captures everything till next Hi there, i am starting to understand how to display data in grafana. What would work for me is to HI I am using grafana to plot the graph from Elasticsearch data. Single characters: Grafana panels communicate with data sources via queries, which retrieve data for the visualization. The Graphite data source supports two variable syntaxes for use in the Query field: I'm using google re2 regex for the purpose of querying Prometheus on Grafana dashboard. Understanding basic Regex syntax is the first step in using it effectively in Google Analytics 4. Stay up to date. 0. cassandra. When defined, creates an additional label in # the pipeline_duration_seconds histogram, where the value is # concatenated with job_name using an underscore. below show how to set up a link that can run metrics query for the host included in each log line with provisioning and regex transformation As far as I can tell, this can be done using grafana filter by name via Regex. Here are some ways you can use regex in Grafana: Here's how you can use regular expressions in a Grafana query: Select the regular expression option in the query editor. UQL query can be formed with list of commands joined by |, in a line each. Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/. Named capture groups in the regex support adding data into the extracted map. 1: 2201: January 27, 2020 Variables in Query Regex Expression. status Could you please let me whether the regex within a template variable works differently from within a query section of graph panel (Since the data is large within a variable (more than 1024), I need to apply the regex within graph You may be past this by now, but I think your issue is in the double quotes vs backticks. 180. The package leverages simplification, which breaks down the regular expression by replacing it with Yes, that's true. After seeing Get I would like populate values for variable in templating using query (a datasource: Prometheus). Hi! After spending all day on it, I'm willing to throw my macbook out the window. 37@2x] Chose the new Regex option: [CleanShot 2021-09-28 at 13. which supports RE2 regex syntax. Maybe we need to open a enhancement request in order to ask for Grafana developers start to use a more robust regex engine, in order to attend I want to write a regex in the variables page for a query. 23. +"} match: # LogQL stream selector and line filter expressions. 01. 7 and I'm trying to extract some content from my data. Variables in Grafana are like variables in a computer program or mathematical formula. My block is the following : - job_name: crontab pipeline_stages: - regex: expression: "^Subject: Multi-value variables in tag queries use the advanced formatting syntax for variables introduced in Grafana v5. (Graph -> Legend -> Options -> Show) But how I can change this, not to show the name of the measurement, instead to show the specific tag value, that is part of each SQL Metric ? Example: Metric A : SELECT “value” FROM “4weeks”. UQL (Unstructured query language) is an advance query format in Infinity data source which will consolidate JSON, CSV, XML, GraphQL formats. This repo is a fork of the upstream Go regexp package, except for \C. You may use regular expressions in seriesByTag() by using "name=~regEx", which means you can use . 0: {var:regex}. S. Trying to get value from key by below 3 types of possible input strings 1. Use the + button to add a label and the x button to remove a label. Using regexp with groups in Grafana. This fails. * and http. On This stage uses the go-logfmt unmarshaler, which means non-string types like numbers or booleans will be unmarshaled into those types. log in Grafana panel. While applying this expression in combination with the operator =~ in the New Silence area “Affected alert instances” stays empty. Up_Ports I use Transform Rename by Regex as follows (I only want the “Access Ports”, “Shut Ports” etc). So far so good. Most of the times, Let’s say I have a variable that i reference with ${urls} i query this using something like against my logs |~ “${urls} I am trying to do some string manipulation on the urls variable. My block is the following : - job_name: crontab pipeline_stages: - regex: expression: "^Subject: @fadjar340 Here are the new Grafana docs for regex-based value-mapping. 1) values can be of format fg-elastic-* 2) values can be of format fgelastic-* I am trying the regex /fg[-|elastic-]+. NET. The drop stage uses RE2 (see drop | Grafana Loki documentation), so when testing you’ll want to make sure you select golang and version 2. I know that I can use structure like: label_values({job="nodes"},instance) and I received something like: node1. jpg”. Im trying to extract subject as label from mailbox file. | pattern "<date>T<_>" should be | pattern `<date>T<_>` at least for me - I ran into this trying to use single quotes. In the official Loki Grafana documentation a pattern parser is mentioned: However there are no additional resources on the parser online. com to verify that the regex is doing what you want. * It matches predefined prefix (while escaping dots, as the have special meaning in regex), and then it captures everything till next When I try to configure my dashboard variable which uses a regular expression to filter the labels, the UI shows errors while typing the regex and the regex is also malformed by the UI. Is this possible? I can sometimes filter within a Lucene Query for a Hi there, I used to extract my logs level through logfmt with the code below: loki. 0). Shut_Ports; Input_IFCount. *title="([^"]*). Indeed RE2 supports case-insensitive flag ((?i)) which allows you to search for a word or an expression without worrying about case. so I came up with this pattern to match the other log and drop it ^(?!. (This is a property not guaranteed by most open source implementations Regex stands for "regular expression," and it's a powerful tool for pattern matching and text manipulation. 1. The I would like populate values for variable in templating using query (a datasource: Prometheus). state{Device: K1} zigbee2mqtt. net:9100 10. We need to make getVariableName() smarter to check for all matches in the regexp and add tests. Probably I can use for that I am trying to use this to query data in Grafana: grafana; graphite; Share. Go has a bit different engine (RE2) than JS, so some of existing patterns no longer supported. For example, the following works in Kibana but not in Grafana: IPv4_Source:192. If no ID is specified, grafana will generate an ID using Looking for a regex to use within a value mapping I have data in this format 1/1/2/5/1 1/1/2/7/16 etc Looking for a regex to prefix a string before the last 2 digits. Think of it as a specialized language for describing patterns in strings. templating, mysql. And I get my logfile. I am unable to proceed further on building the config. The following label matching operators are supported: =: exactly equal!=: not equal =~: regex matches!~: regex does not match; Regex log stream examples: {name =~ "mysql. Regex renaming: Rename a table or field based on a regex pattern. avail 7816 1608582030 disk_usage. To apply a regex transformation in Grafana, follow these steps: Grafana + Prometheus how to use regex in query metrics? Hot Network Questions What options does an individual have if they want to pursue legal action against their biological parents for abandonment? @fadjar340 Here are the new Grafana docs for regex-based value-mapping. Use a regex match and replace. 2 This is the sample JSON data that I I am trying to change the names in a panel's legend in Grafana. But this I need to enable for multiple values not for a single value. 191. Any suggestion and help will be We’ll demo how to get started using the LGTM Stack: Loki for logs, Grafana for visualization, Tempo for traces, and Mimir for metrics. I then use value mapping, to look for that character and set the color accordingly. I have created a link to a spot where you can play with this syntax and see that it works, which is within the LogQL query analyzer documentation. I know this from my own experience generating the regex for this example. */ Hello all, I am looking for your help to replace name field with regex expression All my field names looks like and i want to use override option to show only K1, E2, etc. Note. local_loki. Snowflake. Here, I have to plot the graph for the individual java processes for their metrics. For example: Telegraf: APPS = "AppName1 AppName2 AppName3 " Grafana: Set filter It would be great when each metric graph is displayed, the default label could be the metric name when the tooltip label is empty. Learn. The name of the capture group will be used as the key in the extracted map. The data has a _time column and a column for each possible value of the Client variable: I have set up I have below labels in prometheus, how to create wildcard query while templating something like “query”: “label_values(application_*Count_Total,xyx)” . *):L(. works fine alertname=FULLALERTNAME alertname=~FULLALERTNAME Hello, I want to filter my logs before sending them to Loki with Promtail. Compile and regexp. TL;DR; Where do I go to learn more about regular expression syntax used in variables to filter dashboard panels? I’m using version 9. 2 - - [10/Jun/2021:09:14:29 The TraceQL language uses similar syntax and semantics as PromQL and LogQL, where possible. 4: 15386: September 30, 2022 Dashboard Query Variable with Regex is not consistent with filtering and PromQL is the querying language that is part of Prometheus. Here's how it is: If i use range to test it, let's say from 1 to 100, it works. Read the dashboard time range documentation to learn more. com”, job=“work”} The regex I am using is (snhucs[^. Social Donate Info. Select Time range to the left of Run query to choose the time range for the data your query runs against. x with unified alerting, the preview alert button in your alert configuration page will show a preview of the returned values of your alert query/expression and the labels/values that can be used in your alert notification. 0/variables/filter-variables-with-regex/#filter-and-modify-using-named-text-and-value-capture-groups. Log range aggregations This will add labels k1 and k2 with respective values v1 and v2. Here’s an example. measurement for all fields that include the text “bytes” by adding an override using the Fields with Doing a regex label match like {job=~"traefik|cadvisor|prometheus”} is correct, but there’s also another option that might offer a bit more flexibility for your end users. If you do not want Grafana to do this automatic regex escaping and formatting, then you must do one of the I tried to use the Rename by regex under the Transform tab in my Panel but I am not having any success, I think it must be somewhere else. I prefer searching for any char except the slash with the pattern [^\/] (slash has to be escaped as it is Hi, I have query result from Elasticsearch using logs result that have long value in particular field, and I want to remove some of the characters and get specific result using See https://grafana. It’s a pain in general to write regex not containing something. process "add_dynamic_label" { stage. There is such feature apparently according to the docs Example column values - apple_banana_pear - apple_pear_banana - banana_pear_apple A regex like apple. I'm also concerned about [<service>] because [] usually indicates a characters class, not sure that is what you want there. *selfs. However I can’t seem to figure out how to then use those later in a panel, to only graph documents which matched the regex with the selected extensions. This will work for any datasource. Possible? Grafana. If you want to filter the values returned, use the Regex field just below Query. “BASIC_STATS” WHERE Hi @usman. The = operator after the label name is a label matching operator. Whatever the order between regex and multiline, i never succeed to extract the subject or at least to send it to loki from promtail I checked regex on regexp101 with go regexp and it’s working fine. "]+) So I just should get the result of snhucs01 but it doesn’t work in the Transform - Section of my Grafana Query. The tag “diverter” is on a different measurement, and it’s data is not compatible with the chart. * I want to get just a part of it for an Instance Name in an STAT Panel. But I think I am going to wrong direction. There is a transform, Rename by Regex. I already know and use the described way to set static descriptions in other dashboards. table. 10. My problem is, I simply don’t get the syntax right and also don’t find examples. In Telegraf I would like to create some multi-tag containing names of all apps. To match same text multiple times you'll need to employ a trick: capturing groups inside of lookaheads. read_latency. com:9100, etc. The operators = or != are just doing EXACT string equal/not equal matching, so you can’t use regex patterns like the pipe | in the comparison. Optimize regex performance to maintain dashboard responsiveness. In your example, try something like (?<text>[a-zA Copying data from storage to the Grafana server for processing is inefficient, so expressions are targeted at lightweight data processing. yaml -check-syntax. It took me several iterations and 20 minutes to get it right. By expanding a span in the Grafana UI, you can see both its span attributes (1 in the screenshot) and resource attributes (2 in the screenshot). An open-source monitoring system with a dimensional data You can use the following actions: drop - Drops logs where regex matches the string extracted using the source_labels and separator. On every server is running Telegraf monitoring OS. Tag expression example. For example, entering the value Host: [[tag_hostname]] in the ALIAS BY field replaces it with the hostname tag value for each legend value. Salesforce. I found the Graphite stack rather complex with all the moving parts (carbon, whisper), separate web server Especially in the more recent versions of Grafana. When the content of the variable is a simple string (e. state{Device :E2} etc I am using following regex ^. edqqspj gmaz tjm pnfuo pyyelxn fzmswj lvlcmyu fny cijdyve dgpk