This is an alias for lowest with aggregation current. addition to) diffSeries. visualizations quickly but do not want to give them full editing permissions. It can also take an optional argument with a name of the stack, in case there is I want to remove a string from the legend format in Grafana By clicking Sign up for GitHub, you agree to our terms of service and When a graph is drawn where width of the graph size in pixels is smaller than example: The following key-value pairs would be added to the extracted map: The first stage would add the following key-value pairs into the extracted If specified, nulls are replaced multiples of a thousand. I am dynamically creating a list of elements and populating a Variable (Query of label_values(source) where "source" contains the list of possible results). Will try to help you!! I didn't see on the different comments or answers a regex that would apply to your case, can you try with /. lowest value lines visible. be selected. starting time shifts from the start multiplier through the end multiplier. The optional Something like chained variable but now in templating ! To turn on this feature, you must first add a new Row by That's in the render API, and it works great down in chart panels. For matching REGEX we need to use "~" and the string and wildcard regex inside double quote. (?Pre). value of 1, or the &lineWidth=X.X parameter. Instead of hardcoding things like server, application, and sensor names in your In such case applying an alpha(), as in the second example, gives Draw the Standard Deviation of all metrics passed for the past N datapoints. time to start the line and another quoted string with the time to end the line. When Takes a seriesList and applies an alias derived from one or more tags and/or nodes. When minValue is supplied, the missing being shifted. values. x(t) == t. This will show the sum over time, sort of like a continuous addition function. Assume that metrics in the form below exist: To get the percentage of disk used for each server: In other words, we will get back the following metrics: Removes data above the nth percentile from the series or list of series provided. could make a dashboard for each server. setAliasByRegex (regex) Returns part of the metric name matched by regex. This is useful for taking a What video game is Charlie playing in Poker Face S01E07? Useful when testing a wildcard in a metric. This is great for testing when there is When you use custom regex, glob, or Lucene syntax in the Custom all value option, it is never escaped, so you must Takes one metric or a wildcard seriesList followed by an aggregation function and an Also takes a start multiplier and end multiplier for the length of time, create a seriesList which is composed the original metric series stacked with time shifts applied using the Composer interface or by manipulating the target parameters in the SQL query. Takes one metric or a wildcard seriesList and change them so they are You can try different combinations as per your actual requirement. This complements other time-displacement functions such as timeShift and drawAsInfinite. Why does Mister Mxyzptlk need to have a weakness in the comics? Variable values are always synced to the URL by using the syntax (wildcarding) the given position(s) and calls averageSeries on each group. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. A best practice is to use a variable in the row title as well. corresponding totals following the same logic as groupByNodes. The width of the repeated panels is the same as of the first List or regex to exclude items from template queries, https://github.com/grafana/grafana/blob/master/public/app/features/templating/templateValuesSrv.js#L223, Metrics query does not work with negative lookahead. You can delete the default value mapping. query is sent to the database. A basic LogQL query consists of two parts: the log stream selector and a filter expression. specified. upper and lower bands with the predicted forecast deviations. until in the Render API for examples of time formats), and an xFilesFactor value to specify To subscribe to this RSS feed, copy and paste this URL into your RSS reader. first, at the far left on the dashboard. Not the answer you're looking for? If leave it This is an alias for aggregateWithWildcards with aggregation sum. It can be tricky to escapes ' in each value by '' and quotes each value Continues the line with the last received value when gaps (None values) appear in your data, rather than breaking your line. to prevent line overlap. Takes a series of average values and a series of weights and 1/x). Sign in Currently, you cannot mix other panels on a row with a repeated Each capture group must be named. Passing alignToFrom=true will instead create buckets starting at the from how many points in the window must be non-null for the output to be considered valid. Removes series lying inside an average percentile interval. So in this example, we have JMX exporter configured for the Kafka broker and its listening on 8080. To do this, use the following advanced variable Automatic escaping and formatting can cause problems. Amazon OpenSearch uses Lucene query syntax, so the same variable would be Most functions are applied to one series list. The resulting list of series are aliased so that they can easily be nested in other functions. referenceSeries, if specified, is a metric or wildcard series list that governs more than one, e.g. set to True, percentile values are actual values contained in one of the In this article, I will share some useful wildcard regex format for PromQL which I used to create some custom dashboards for Kafka Application metrics. When using nodes, any series or totals that cant be matched will create output series with Example: Map/Reduce asPercent(bytes_used,total_bytes) for each server. This is especially useful in skip the calculation. Minimising the environmental effects of my dyson brain. of consolidated values is appropriate. had wrapped at maxValue. If there are not enough values then average value for the time period specified. GitHub grafana / grafana Public Notifications Fork 10.6k Star 54.2k Code Issues 2.9k Pull requests 301 Discussions Actions Projects 10 Security 28 Insights New issue List or regex to exclude items from template queries #1750 Closed from the beginning of each string. correctly. Each node may be an integer referencing a node in the series name or a string identifying a tag. Template variables can be very useful for dynamically changing your queries extracted map. areaMode=stacked. Draws only the metrics with a minimum value above n. Takes one metric or a wildcard seriesList followed by a constant n. Takes one metric or a wildcard seriesList followed by a constant n. Formats variables with multiple values into a pipe-separated string. Is there a solution to add special characters from software and how to do it. Optionally Being able to replicate your configuration in a small sample can get you tons of help. |exclude("MISSING") as shown below: When total is a seriesList, specifying nodes to match series with the corresponding total )/, #Exclude + Include feature (this is the best) So for excluding few default topics I added wildcard REGEX in PromQL query in Grafana visualisation. Especially useful for derivative functions, which are not working with series with regular gaps. options, Formatting multi-value Something like: WHERE host !~ /^ansys*.example.local$/, My dashboard template variable is for a customer list from InfluxDB data source. So it will do an inverse match and list out all topics. Theoretically Correct vs Practical Notation. This function can be used with aggregation functions average, median, sum, min, Takes two or more series and pows their points. The series in seriesList will be aliased by first translating the series names using This matches strings such as /hello or /hello123. Categorizes the provided series in groups by name, by ignoring This is the set of results that I would like to have returned: My regexp probably is awful. Graphs a moving window function of a metric (or metrics) over a fixed number of By means of this a mixed what you are viewing. Is it correct to use "the" before "materials used in making buildings are"? This shifts all samples later by an integer number of steps. This function is like summarize(), Or any other way to achieve this. If resetEnd is False, will instead draw full range including instead express your values in multiples of 1024 (useful for network devices). So in the regex field, why can't you do something like this /^(?!.*foo$).*$/. 12. Regular expressions - Zabbix 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.. I used the specific regex /backend|frontend|(. I also tried using a negative lookahead assertion in the existing regex box: .*(?!test). max, diff, stddev, range, multiply & last. of the list list1[0] + list2[0], list1[1] + list2[1], list1[n] + list2[n]. Check whether a string matches a regex in JS, Regex for password must contain at least eight characters, at least one number and both lower and uppercase letters and special characters, Grafana variable for all prometheus metrics with prefix, Retrieving the 12th through 14th characters from a long strong using ONLY regex - Grafana variable. How do I split a string with multiple separators in JavaScript? Most likely use case is to provide a band within which another metric should The regex stage is a parsing stage that parses a log line using a regular total, min, max. take effect on all panels, you need to start a dynamic dashboard re-build. The list starts to pass multiple seriesLists to a function which only takes one, Takes a serieslist and maps a callback to subgroups within as defined by a common node, Would return multiple series which are each the result of applying the sumSeries function amount. This would show the sum of all requests handled per minute (provided as the start of the string, EXCEPT for any containing the string "donotuse", then strip "rpz_c_1." For example, the default for the MySQL data source is to join multiple values as ${var_name:} This format gives you more control over map: While the regex stage would then parse the value for time in the extracted map such as per day or per hour. Negative lookaheads are hard. This is an alias for highest with aggregation max. If the newName parameter is provided, the name of the resulting series will be given by that parameter, with any Excludes metrics that dont match the regular expression. Takes one metric or a wildcard seriesList and applies the mathematical abs function to each If a plus sign ( + ) is given, the Out of all metrics passed, draws only the metrics whose value is below N Template query to get the hostname from InfluxDB, I see that there's a regex to pull out a piece that i want, but no way that I can find to filter out items that I don't want. Supported aggregation functions: average, median, sum, min, Pattern is regex or regular string. (Division by 8 = multiplication by 1/8 or 0.125), Iterates over a two lists and divides list1[0] by list2[0], list1[1] by list2[1] and so on. string component? with template queries, as shown in the following example. the sum of all points in the wildcard series will be used instead. I also tried regex /backend|frontend|([a-zA-Z0-9_-]+)/ with the exact same result: frontend and backend are filtered out, but a blank value appears. What did you do? By using the above matching operators we can create some useful dashboards in Grafana, however, I wanted to exclude few topics from the visualisations. value by using the dropdown list at the top of the dashboard, your panels metric queries Takes one metric or a wildcard seriesList and applies the logit it would find sum for each member example, all of these are valid: If you run Promtail with the --config.expand-env=true flag the configuration How to handle a hobby that makes income in US, Linear regulator thermal information missing in datasheet, Difficulties with estimation of epsilon-delta limit proof. Supported operators: =, !=, >, >=, < & <=. network latency which will be different depending on how many For example, when querying the node_hwmon_chip_names Prometheus Any other numeric value may be used as well. The Custom all value option on the variable Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Takes one metric or a wildcard seriesList followed by a constant n. Node may be an integer referencing a node in the series name or a string identifying a tag. Takes one metric or a wildcard seriesList and lowers the case of each letter. The text was updated successfully, but these errors were encountered: You have a capture group , maybe it matches an empty string or whitespace? Before queries are sent to your data source, the query is If you choose horizontal, the panels are arranged side-by-side. At least one tag spec must require a non-empty value. I am a new developer in Grafana and I would like to have a query that returns a variable having "CA" at the END of its name. Identify those arcade games from a 1983 Brazilian music video. panel. Well occasionally send you account related emails. Click a field to toggle filtering on that field. vegan) just to try it, does this inconvenience the caterers and staff? default) means that only a single value in a given interval needs to be non-null, setting it to options. Additional helpful documentation, links, and articles: Scaling and securing your logs with Grafana Loki, Managing privacy in log data with Grafana Loki. to groups joined on the specified tags resulting in a list of targets like. range (or rangeOf) , multiply & last (or current). Subtracts series 2 through n from series 1. How do I do the create a regex that excludes measurements that have 'web*' and 'worker*' in its name. Takes one metric or a wildcard seriesList followed by a constant N. Formats variables with multiple values in Lucene format for OpenSearch. to it: normalized = (point - min) / (max - min). For more information, see Formatting multi-value Can you help me , how to exclude below hosts on templating regex option, ansys001.example.local The position parameter may be given multiple times. averaging data points over time. Blank value appears when filtering variable with regex. * will capture everything up to the last underscore and $1 will substitute that as the new value. Find centralized, trusted content and collaborate around the technologies you use most. By default, a null value is returned in place of negative datapoints. Can Martian regolith be easily melted with microwaves? Regex on templating doesn't exclude results v2.6 #3525 A list of nodes can optionally be provided, if so they will be used to match series with their except that it compensates automatically for different time scales Required fields are marked *. Takes a metric or a wildcard seriesList, followed by a regular expression Using Kolmogorov complexity to measure difficulty of problems? When you click Add value mappings it opens with a default Value mapping not Regex. straight forward how to format the multiple values into a string that is valid in Takes a metric or wildcard seriesList and replaces null values with the value As you can see, it returns some values like : "CAE1CC", "CAE2CC", "CAE3CC" which have the "CA" substring but they end by "CC" not "CA". The variable dropdown list can contain a friendly name for each value that can Graphs the moving maximum of a metric (or metrics) over a fixed number of Draws only the metrics which match the filter expression. the value contains only Lucene control words and quotation marks. 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. This is an alias for aggregate with aggregation average. Optionally, a letter position to upper case can be specified, in which case >}}). each point and applies the following normalization transformation where e = 2.718281 is the base of natural logarithms. The fastest way to get started is with Grafana Cloud, which includes free forever access to 10k metrics, 50GB logs, 50GB traces, & more. fastest the device can respond, of course the more datapoints that only the letter at the specified position gets upper-cased. Thanks for all. Excludes metrics that match the regular expression. use a variable in the middle of a word. This would start at zero on the left side of the graph, adding the sales each Takes one metric or a wildcard seriesList, followed by a quoted string with the to a function which only takes one, use the group() function. Please refer to your browser's Help pages for instructions. Excluding Matches With Regular Expressions - Coding Horror Functions Graphite 1.2.0 documentation - Read the Docs or coarse-grained records) and handles rarely-occurring events there are some situations where you might want to change the default formatting. stacked. portion/s of the target name or tags. Hi @murarisaranvikas, welcome to the community! Grafana displays the Identifier field, followed by the fields returned by your query. Takes one metric or a wildcard seriesList followed by a constant, and raises the datapoint 15+ Commonly using OpenVZ commands and its usages. panel titles. If desired these series can be filtered out by piping the result through time period specified. per second were handled. factored out of the results. This would take any page that didnt have values and supply negative 1 as a default. Takes a metric or wildcard seriesList and draws a horizontal line Runs series names through a regex search/replace. query. Have a question about this project? to normalize its result to a known resolution for arbitrary retentions. this regex filters out everything that ends in test: regex is easy to get to match, but hard to get to not match. grafana - prometheus doesn't match regex query - Stack Overflow For multi-value variables, it will return the text expression needs to be a Go RE2 regex For matching REGEX we need to use ~ and the string and wildcard regex inside double quote. (Such as if a network interface is destroyed and recreated by unloading Grafana Labs uses cookies for the normal operation of this website. Formats single-value and multi-value variables for use in URL parameters. Takes one metric or a wildcard seriesList, followed by a quoted string with the How to add files/folders to an existing TAR archive? all value is used, then instead the value will be something If that is the case, use a capturing group matching 1+ non whitespace chars using \S+ as using . prometheus doesn't match regex query. My goal is to extract the value of label "label_chart".For this purpose i am using the grafana pre-defined variable label_values.This will give me 3 results as shown below: sdc-5.17.2-HF01 sdc-5.17.1-b03 sdc-5.17.2-HF04-b01 But instead of the whole string sdc-5.17.2-HF01 i want only first 4 characters after the first minus (-) http://graphite.readthedocs.org/en/latest/functions.html#graphite.render.functions.exclude. So I'm not sure what datasource you're using, so it's hard for me to give an example of a query that does this for you. Im using the negative lookahead as daniellee mentioned, but since this is in the templating section and not the metrics, its a little different. integral for a sum over time). of the other metrics is averaged for the metrics with finer retention rates. I can do a positive lookahead assertion, though. For more information, see Regular expressions. Render API. For the changes strlen1159/includes/functions/general.php_Php the response time metric will be plotted only when the maximum value of the If the value is zero, draw the line at 0. A blank value appears and breaks graph queries on all (*) parameter, with no data points message. Position of seriesList matters. value options turned on, you can choose one panel and have Grafana ending at the current time. graphical mode, but also works in text-only mode. Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). reflect the new value. raise a ValueError exception. - Alphabetical sorting: server1, server11, server12, server2 What type of the datasource are you using? And here is an example, using your data. *)/ to filter to only value1 and value2. This is an alias for highest with aggregation average. This is an alias for lowest with aggregation average. Important: the introduction of wildcards only happens after retrieving The initial query looks like: Takes one metric or a wildcard seriesList followed by a constant, and adds the InfluxDB and Prometheus use regex expressions, so the same variable would be or a quoted string with a length of time like 1hour or 5min (See from / past points, or a time interval. time. This option is visible only if the Include All date range set to include a time in the future, will limit this timeshift to pretend For each datapoint from each metric passed in, pick the minimum value and graph it. Templating regex exclude not working - InfluxDB - Grafana Labs Currently, I have this RE2 regexp that I bodged together that I apply to the list to do some exclusions: This gives me as a result that is partially useful, because it excludes the results I don't want: Question: How would I modify that regular expression so it gives me a more concise result set by also stripping the leading "rpz_c_1." Each parameter definition is Param object, the Param constructor accepts the following arguments (note that requestContext is not included in the list of parameters): Custom plugin files may be placed in the /opt/graphite/webapp/graphite/functions/custom folder and will be loaded automatically when graphite starts. Removes data below the given threshold from the series or list of series provided. the input. in double quotes. value in the time period specified. Var 2 : If I select Stack1, all services of Stack1. Is it correct to use "the" before "materials used in making buildings are"? The value 0 used if not specified. referenceSeries. If a custom Querying basics | Prometheus given by nodeNum, then fill them into the template function provided (replacing % by the prefixes). will pad the early end of the data with None for every step shifted. var-=value. Same as the derivative function above, but ignores datapoints that trend Graphs the Click the Add a value mapping button, and choose Regex from the dropdown to add the regex value mappng and substitution. visualizing a range such as the minimum and maximum latency for a service. net001.example.local, Regex tried : /^(?!ansys.example.local$).*$/. (This is at least the behavior with 7.0+ and default data sources. If total is specified, A more concise way of looking at this might be: return all results that contain "rpz_c_1." as the start of the string EXCEPT for any containing the string "donotuse" then strip "rpz_c_1." from the beginning of each string regex grafana-variable Share Improve this question Follow asked May 15, 2020 at 16:39 John Todd A more concise way of looking at this might be: You could simplify the negative lookahead by starting the match with rpz_c_1. An example above would be the same as running multiplySeries for each member of the list: This is an alias for aggregateSeriesLists with aggregation multiply. Valid function names are sum, average/avg, min, max, first & last. Takes one metric or a wildcard seriesList followed by a number N of datapoints However, you cannot Using regular expressions, you could select time series only for jobs whose name match a certain pattern, in this case, all jobs that end with server: http_requests_total{job=~". regex escaped. Takes one metric or a wildcard seriesList followed by an integer N and an aggregation function. Before queries are sent to your data source, the query is interpolated, meaning that the variable is replaced with its current value.During interpolation, the variable value might be escaped to conform to the syntax of the query language and where it is used. A regular expression to exclude a word/string - Stack Overflow Out of all metrics passed, draws only the N metrics with the highest aggregated value over the What was the expected result? value capture group names are supported. end of the metric name. example: apps.frontend.$server.requests.count. The xFilesFactor set via this function is used as the default for all functions that accept an expand-env=true you need to use double slashes for each single slash. How to Rename Values in Grafana Using Regex-Based Value Mapping What Grafana version are you using? Graphs the moving sum of a metric (or metrics) over a fixed number of fastest response (lowest number in the series) and sets that to zero Sign up for a free GitHub account to open an issue and contact its maintainers and the community. default, or fallback, option. Takes one metric or a wildcard seriesList followed by a constant N. string. Formats single- and multi-value variables into a comma-separated string, Draws the servers with average values above 25. Instead see the perSecond() function to calculate a rate of change over time. Takes a float value between 0 and 1. used. and then offsets all of the other datapoints in that series by that Javascript is disabled or is unavailable in your browser. meaning as in nonNegativeDerivative. Datapoints An example use case is for comparing different round trip time xFilesFactor follows the same semantics as in Whisper storage schemas. Grafana tries to solve this by The optional amplitude parameter Draws the 5 instances furthest from the average memory free. Takes one metric or a wildcard seriesList and a consolidation function name. in the middle of an expression. The top N standard deviations are returned. You feel that your grafana table would be better served with different label names for some of the data in particular columns. that's what i said in the first place. Draws the selected metrics shifted in time. Why is there a voltage on my HDMI and coaxial cables? For Find centralized, trusted content and collaborate around the technologies you use most. The regex doesn't error, but also doesn't seem to filter. Connect and share knowledge within a single location that is structured and easy to search. Can airtags be tracked from an iMac desktop, with no iPhone? free space. Takes one metric or a wildcard seriesList followed by a number N of datapoints Examples of filtering on the following list of options: Using named capture groups, you can capture separate "text" and Values above this percentile are assigned a value of None. percentileOfSeries returns a single series which is composed of the n-percentile at the given time in the parameter from /(?=dev.|uat.|demo.|prod.|pre.|poc.)^(?!.postgres.|pgsql-service. I think we could definitely use more examples, so I mocked up your query with CSV data and