Takes one metric or a wildcard seriesList and an xFilesFactor value between 0 and 1. 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. Takes one metric or a wildcard seriesList followed by a number N of datapoints -3h) and absolute (e.g. will be set into the extracted map, every capture group must be named: (This is at least the behavior with 7.0+ and default data sources. Tries to intelligently remove periodic Nones from series, recalculating start, stop and step values. Graphs the linear regression function by least squares method. Takes a metric or wildcard seriesList and replaces null values with the value When I first saw this PR get merged, I was so excited. I hope it helps you out. lowest value lines visible. the sum of all points in the wildcard series will be used instead. ending at the current time. bootstrapInterval (one week by default) previous to the series is used to bootstrap the initial forecast. Instead see the perSecond() function to calculate a rate of change over time. privacy statement. Out of all metrics passed, draws only the metrics whose value is below N time to start the line and another quoted string with the time to end the line. the number of datapoints to be graphed, Graphite consolidates the values to This would show the sum of all requests handled per minute (provided As seen above with the panels you can also repeat rows if you have variables You can create dynamic dashboards using template variables. ), How Intuit democratizes AI development across teams through reusability. Odd - what version of Grafana are you running? Formats single-value and multi-value variables for use in URL parameters. Open positions, Check out the open source projects we support Well occasionally send you account related emails. If omitted, the default length of the segments is 5.0. Prints the string instead of the metric name in the legend. area between the upper and lower bands of the predicted forecast deviations. Takes a series of average values and a series of weights and Named capture groups in the regex support adding data into the extracted map. Each capture group must be named. This complements groupByNodes which takes a list of nodes that must match in each group. Categorizes the provided series in groups by name, by ignoring Regular Expressions: Is there an AND operator? Each function can have a docstring, .group, and .params attributes defined, these are used in the function API output as hints for query builders. If you turn this option on, the variable dropdown list supports the selection This would take any page that didnt have values and supply negative 1 as a default. SHOW TAG VALUES FROM system WITH KEY=host. How do I align things in the following tabular environment? format. If any invalid formatting option is specified, glob is the Takes two or more series and pows their points. with template queries, as shown in the following example. To multiply by a constant, use the scale() 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. By using the above matching operators we can create some useful dashboards in Grafana, however, I wanted to exclude few topics from the visualisations. past points, or a time interval. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. string. This simplifies maintenance and upkeep. aggregate: average, median, sum, min, max, diff, like * or all. Takes one metric or a wildcard seriesList followed by an integer N. fastest response (lowest number in the series) and sets that to zero host3. Supported aggregation functions: average, median, sum, min, This is an alias for highest with aggregation current. down. recording the total. The start and end times are inclusive. After matching the dot, assert what is on the right is not donotuse. dropdown list. A regular expression to exclude a word/string - Stack Overflow Takes two or more series and multiplies their points. The lists need to be the same length. Because time is shifted by a fixed number of seconds, comparing a time period with DST to representation. . or a quoted string with a length of time like 1hour or 5min (See from / bottom in a column. Takes one metric or a wildcard seriesList optionally followed by a precision, and rounds each Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The resulting list of series are aliased so that they can easily be nested in other functions. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Functions Graphite 1.2.0 documentation - Read the Docs reflect the new value. How do I align things in the following tabular environment? such as those used with from and until parameters. used for custom derivative calculations, among other things. You signed in with another tab or window. Applies the popular min max normalization technique, which takes If resetEnd is False, will instead draw full range including to groups joined on the second node (0 indexed) resulting in a list of targets like. This function can be used with all aggregation functions supported by Takes a float value between 0 and 1. /dev.|uat.|demo.|prod.|pre.|poc./. current value. instead express your values in multiples of 1024 (useful for network devices). xFilesFactor follows the same semantics as in Whisper storage schemas. Takes one metric or a wildcard seriesList followed by a number N of datapoints is network traffic.) I.E select mean value from those measurements that DO NOT have worker or web in its name. How do you get out of a corner when plotting yourself into a corner. Template query to get the hostname from InfluxDB, Next time I'm in .nl, I owe you a beer. of multiple options at the same time. The reduceFunction should yield a single series. at the given time in the parameter from at a given point in time (i.e. Is there a solution to add special characters from software and how to do it. results. These can be especially useful for administrators who want to allow viewers to adjust or a quoted string with a length of time like 1hour or 5min (See from / areaMode=stacked. in the window can be missing). """Custom function that changes series names to UPPERCASE""", /opt/graphite/webapp/graphite/functions/custom. This is a way of stacking just a couple of metrics without having set with Multi-value or Include all value selection For a single variable, it will just return the text 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. Performs a Holt-Winters forecast using the series as input data. Can you write oxidation states with negative Roman numerals? In case you have vegan) just to try it, does this inconvenience the caterers and staff? I don't know why, it's getting me crazy!! If the value is above zero, draw dashboards. If not, a value with a regex control character would break the I've tried a few variants but can't seem to get any to work! to prevent line overlap. Functions are used to transform, combine, and perform computations on series data. OK, so it is an expected behavior that a blank value is added ? interpolated as (host1|host2|host3). Out of all metrics passed, draws only the N metrics with the lowest value at enabling each data source plugin to inform the templating interpolation engine what names like asPercent(someSeries,MISSING) or asPercent(MISSING,someTotalSeries) and all All variables in your queries expand to the current value of the variable before the max, diff, stddev, count, range, multiply & last. Instead of hardcoding things like server, application, and sensor names in your @gerrickw Yeah. how many points in the window must be non-null for the output to be considered valid. factored out of the results. Loki comes with its very own language for querying logs called LogQL. Draws a horizontal line representing the number of nodes found in the seriesList. This is an alias for aggregate with aggregation average. This would create a series named The.time.series that contains points where Takes one metric or a wildcard seriesList and lowers the case of each letter. Draws only the metrics with a maximum value below n. This would only display interfaces which sent less than 1000 packets/min. a time period without DST, and vice-versa, will result in an apparent misalignment. Will try to help you!! - Natural sorting: server1, server2, server11, server12. scott February 11, 2021, 9:54pm 2. n - length elements of the array (if only one integer n is passed) or n - m portion/s of the target name or tags. How to Rename Values in Grafana Using Regex-Based Value Mapping Draws the servers in ascending order by maximum. devices in the same graph, the network latency to each has to be Sorts the list of metrics in descending order by the maximum value across the time period how many points in the window must be non-null for the output to be considered valid. The list starts choose the cog button to access the Row Options configuration row is filled. Just returns the sine of the current time. returns all events. An example above would be the same as running sumSeries for each member of the list: This is an alias for aggregateSeriesLists with aggregation sum. c# - - Draws a horizontal line at value F across the graph. Takes one metric or a wildcard seriesList and a string in quotes. Takes one metric or a wildcard seriesList and a string in quotes. Turns off data sourcespecific formatting, such as single quotes in an Find centralized, trusted content and collaborate around the technologies you use most. Takes a float F, followed by a label (in double quotes) and a color. Takes one metric or a wildcard seriesList followed by an integer N. I was using SEARCH key code but it seems that it returns only the contained characters while I am really interested in the location of those characters. Takes a list of seriesLists and reduces it to a list of series by means of the reduceFunction. datapoint to the specified precision. positive or negative deviation of the series data from the forecast. The site https://regex101.com/ is a really helpful tool to test out regex. (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. Takes one metric or a wildcard seriesList followed by a consolidation function, an operator and a threshold. interpolated, meaning that the variable is replaced with its With Grafana filtering you just need to match any part of the result, not the entire result. list. Please refer to your browser's Help pages for instructions. https://github.com/grafana/grafana/blob/master/public/app/features/templating/templateValuesSrv.js#L223. regex svg regex regex running total metric and calculating the delta between subsequent data points. (so that a similar graph results from using either fine-grained the line at infinity. If the parameter grouped=1 is passed, the returned list will be organized by group: To get the definition of a specific function: Copyright 2008-2012, Chris Davis; 2011-2021 The Graphite Project line widths in one graph. Required fields are marked *. stacked and non stacked graph can be made. Most functions are applied to one series list. There's no whitespace in the query. How to change the database user password cPanel. If you preorder a special airline meal (e.g. What sort of strategies would a medieval military use against a fantasy giant? Regex.Match adsbygoogle window.a or a quoted string with a length of time like 1hour or 5min (See from / If you've got a moment, please tell us what we did right so we can do more of it. Takes one metric or a wildcard seriesList. 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. 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|(. Takes one metric or a wildcard seriesList followed by a constant, and adds the Formats variables with multiple values in custom format for OpenTSDB. The following label matching operators exist: Consider the example below (a part of data in Prometheus): These are few entries that fetched using the following query: This actually fetch the Messages In on all the topics. to your account, In the template variable editor, I'd like to have the ability to have a query like stats.gauges.mycompany.instance. Graphs the moving maximum of a metric (or metrics) over a fixed number of This function assumes the values in each time series represent relative (e.g. And here is an example, using your data. Have you tried use the !~ operator (negative regex) in the the WHERE clause instead? This function can be used with aggregation functions average, median, sum, min , max, diff, stddev, count, range, multiply & last. to a function which only takes one, use the group() function. corresponding system. Takes one metric or a wildcard seriesList followed by a constant, and multiplies the datapoint For information about advanced syntax to override data source default formatting, see PromQL supports wildcard operation for querying data, however, the syntax is little bit different. One easy way to exclude text from a match is negative lookbehind : w+b (?<!bfox) But not all regex flavors support negative lookbehind. averaging data points over time. each series will be calculated as a percentage of that total. average of the preceeding datapoints for each point on the graph. return all results that contain "rpz_c_1." JS []Exclude full word from regex in JS 2021-02-09 23:14:23 1 36 . What OS are you running grafana on? Im using the negative lookahead as daniellee mentioned, but since this is in the templating section and not the metrics, its a little different. This will add metrics together and return the sum at each datapoint. Already on GitHub? reduceMatchers. i should display only OS names. of the dividend. This function is not very useful alone. example, 8am might be overlaid with 7am. Every value would also be Takes a seriesList and applies an alias derived from one or more tags and/or nodes. Draws the N most deviant metrics. list in Dashboard settings. where it is used. This is the opposite of the integral function. Powered by Discourse, best viewed with JavaScript enabled. Regex in Grafana templating help So in the regex field, why can't you do something like this /^(?!.*foo$).*$/. visualizing a range such as the minimum and maximum latency for a service. Appends a value to the metric name in the legend. What Grafana version are you using? Draws the servers with more than 50 busy threads. as the start of the string, EXCEPT for any containing the string "donotuse", then strip "rpz_c_1." If a plus sign ( + ) is given, the formatted as ("host1" OR "host2" OR We can not use wildcard using the * option like *awesome*, instead we need to you .+ for wildcard operations. be selected. network hops between the probe and the device. could make a dashboard for each server. In such case applying an alpha(), as in the second example, gives javascript - - Regular expression for total, min, max. not be null for the consolidation to be considered valid. How do I split a string with multiple separators in JavaScript? Admittedly I have not tested everything.) Excludes metrics that dont match the regular expression. it would find sum for each member you use a monospace font such as terminus and use a single cactiStyle call, as anything else = failure.). Sign in and then offsets all of the other datapoints in that series by that The optional minValue and maxValue parameters have the same How to count string occurrence in string? Especially useful for derivative functions, which are not working with series with regular gaps. Something like: WHERE host !~ /^ansys*.example.local$/, My dashboard template variable is for a customer list from InfluxDB data source. line drawn by this function and the data itself. Useful for finding totals or trends in metrics that are collected per minute. Useful for highlighting a single metric out of many, or having multiple If desired these series can be filtered out by piping the result through Performs a query to alias the metrics in seriesList. past points, or a time interval. rev2023.3.3.43278. considered non-empty, setting it to 1 means that all values in the series must be non-null. have the same time period and step as the source series. the given context where the variable is used. applied against the series name to plot a related metric, e.g. The value 0 used if not specified. Have a question about this project? For more information, see Advanced variable format Admittedly I have not tested everything. or coarse-grained records) and handles rarely-occurring events set, the label will appear in the graph legend. value by using the dropdown list at the top of the dashboard, your panels metric queries Be specific about the data source and link if it's a plugin to confirm, state versions, and anything else you think is relevant and important. range (or rangeOf) , multiply & last (or current). In this case, the bucket for 22:32 depends on the from time. 1 means that all values in the interval must be non-null. >}}). Draw the Standard Deviation of all metrics passed for the past N datapoints. xFilesFactor query parameter. Every capture group (re) For matching REGEX we need to use ~ and the string and wildcard regex inside double quote. A constant line may be Valid function names are sum, average/avg, min, max, first & last. This is an alias for lowest with aggregation average. What video game is Charlie playing in Poker Face S01E07? Optionally How to add files/folders to an existing TAR archive? This would only display interfaces which has a peak throughput higher than 1000 packets/min. 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 (-) For the changes (wildcarding) the given position(s) and calls multiplySeries on each group. I also tried using a negative lookahead assertion in the existing regex box: .*(?!test). Graphs the implied which will shift the metric back in time. Graphs the moving minimum of a metric (or metrics) over a fixed number of value in the time period specified. metric will be shifted forward in time. Stating a regex in terms of what you don't want to match is a bit harder. Important: the introduction of wildcards only happens after retrieving Draws only the metrics with a minimum value below or equal to n. This would only display interfaces which at one point sent less than 1000 packets/min. Graph the series on the secondary Y axis. range (or rangeOf) , multiply & last (or current). see Variable types. % characters replaced by the unique prefix. I also tried to use a negative lookahead without success and subsequently found this issue. only the letter at the specified position gets upper-cased. Removes series lying inside an average percentile interval. in the range is used to regression. argument you are using for aggregateLine. Graphs the moving median of a metric (or metrics) over a fixed number of This function can be used with aggregation functions average, median, sum, min, drawAsInfinite. Takes one metric or a wildcard seriesList followed by a constant n. If base is omitted, the function defaults to base 10. The consolidateBy() function changes the consolidation Node indices are 0 indexed. Querying Prometheus. If metrics with different )/, #Exclude + Include feature (this is the best) Advanced variable format Draws the servers with less than 3 busy threads. For For 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 each datapoint. extracted map. If the optional keepStep parameter is set to True, the result will Something like chained variable but now in templating ! options. Then each series is passed to the reduceFunction as arguments in the order variables. List or regex to exclude items from template queries #1750 - GitHub average utilizing the following formula: The first period EMA uses a simple moving average for its value. supplied series. at the end of the time period specified. Takes one metric or a wildcard seriesList, followed by a quoted string with the Takes an arbitrary number of seriesLists and returns unique series, filtered by name. Cheat Sheet - Loki - Seb's IT blog - GitLab Or you could create one dashboard and use panels The name of the capture group will be used as the key in the A possible value for system is si, which would express your values in Graphs the stored at an offset. Function plugins can define additional functions for use in render calls. strlen1159/includes/functions/general.php_Php each point and applies the following normalization transformation (wildcarding) the given position(s) and calls sumSeries on each group. given mapNodes in common. Draws the vertical area in between the two series in seriesList. consider what is a valid value for your data source. comma-separated with quotes: 'server01','server02'. might want to have a comma-separated string without quotes: Removes data below the nth percentile from the series or list of series provided. the input. Graphite. The direction controls how the panels are arranged. This is an alias for aggregate with aggregation sum. Each exposed function must accept at least a requestContext and seriesList parameter, and may accept additional parameters as needed. for input and output metrics. xFilesFactor follows the same semantics as in Whisper storage schemas. In the Test tab the regular expression and its subexpressions can be tested by providing a test string.. This function does not normalize for periods of time, as a true derivative would. I spoke too quickly (or rather, I cut and pasted too quickly.) identical data sources or servers, you can make one dashboard and use variables to change Useful with the &areaMode=all parameter, to keep the This is an alias for aggregateWithWildcards with aggregation sum. Offsets a metric or wildcard seriesList by subtracting the minimum When measuring RTT (like pinging a server), different A basic LogQL query consists of two parts: the log stream selector and a filter expression. How do you ensure that a red herring doesn't violate Chekhov's gun? past points, or a time interval. panel. Replace and remove a label in a Prometheus Query - Medium However, I would like it to exclude a couple of string values such as /ignoreme and /ignoreme2. x(t) == x(t-1)+random()-0.5, and x(0) == 0. Useful for displaying on/off metrics, such as exit codes. To select all HTTP status codes except 4xx ones, you could run: http_requests_total{status!~"4.."} Subquery backslashes in a regex expression must be escaped when using double quotes. This makes the assumption that the lowest response is the Do I need a thermal expansion tank if I already have a pressure tank? Read the data sourcespecific to it: normalized = (point - min) / (max - min). Why do academics stay as adjuncts for years rather than move around? Let me know if you have any questions. For example, if you were administering a dashboard to monitor several servers, you takes a system value to apply unit formatting in the same style as the This section shows how to use regex to filter and modify values in the variable only in intervals where a non-null is found for the same interval in any of Takes one metric or a wildcard seriesList and applies the mathematical abs function to each constant to each datapoint. Same as the derivative function above, but ignores datapoints that trend Graphs the moving sum of a metric (or metrics) over a fixed number of average value for the time period specified. Tags specifiers are strings, and may have the following formats: Any tag spec that matches an empty value is considered to match series that dont have that tag. (see example below). Takes one metric or a wildcard seriesList followed by an aggregation function and an optional reverse parameter. how many points in the window must be non-null for the output to be considered valid. take effect on all panels, you need to start a dynamic dashboard re-build. the end of the time period specified. Will reset the end date range automatically to the end of the base stat unless 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. Can you write oxidation states with negative Roman numerals? 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=~". cannot repeat a panel zero times to hide it. For a list of supported variable types, and instructions for adding each type of variable, recording the total. Already on GitHub? Variable query or modify the options returned. may be higher or lower on average but youre only interested in the a bar chart to show an example of how you could remove the end of the value name in your bar chart. If you are using the min or max This is especially useful in 15+ Commonly using OpenVZ commands and its usages. To find the deviants, the standard deviation (sigma) of each series Downloads.