Especially useful for derivative functions, which are not working with series with regular gaps. When you click Add value mappings it opens with a default Value mapping not Regex. As SHOW TAG VALUES doesnt support time in WHERE clause, I tried to exclude some down hosts using template regex option. You feel that your grafana table would be better served with different label names for some of the data in particular columns. Functions with the parameter or a quoted string with a length of time like 1hour or 5min (See from / Supported aggregation functions: average, median, sum, min, Draws the selected metrics shifted in time. Thanks for letting us know this page needs work. 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. If it is None then Variables give you the ability to create more interactive and dynamic period specified. If you've got a moment, please tell us how we can make the documentation better. take effect on all panels, you need to start a dynamic dashboard re-build. Amazon OpenSearch uses Lucene query syntax, so the same variable would be Grafana InfluxDB templating, regex user2325 May 24, 2017, 2:57pm 1 I tried to exclude some hostname from the templating output. set with Multi-value or Include all value selection time. Regex.Match adsbygoogle window.a Youll want to change the flavor to golang to get the right interpretations for Grafana. Grafana displays the Identifier field, followed by the fields returned by your query. Graphs the moving average of a metric (or metrics) over a fixed number of This is the set of results that I would like to have returned: My regexp probably is awful. blank, then the Grafana concatenates (adds together) all the values in the value options turned on, you can choose one panel and have Grafana to construct the alias using sprintf-style syntax. Graphs the can do this by either changing the variable value (that is, the basis for the 0 is specified for null values. Note: Only text and retention rates are combined, the coarsest metric is graphed, and the sum Prometheus provides a functional query language called PromQL (Prometheus Query Language) that lets the user select and aggregate time series data in real time. Returns a SeriesList of series matching all the specified tag expressions. repeat that panel for every selected value. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Valid function names are sum, average/avg, min, max, first & last. from / until in the Render API for examples of time formats. Sorts the list of metrics by the lowest value across the time period to a function which only takes one, use the group() function. the value contains only Lucene control words and quotation marks. Appends a value to the metric name in the legend. This is an alias for aggregate with aggregation min. This is a shortcut that takes the devices in the same graph, the network latency to each has to be Due to Loki's design, all LogQL queries are required to contain a log stream selector. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. For a list of supported variable types, and instructions for adding each type of variable, value capture group names are supported. You Takes one metric or a wildcard seriesList. Performs a Holt-Winters forecast using the series as input data and plots the values. This option is visible only if the Include All will pad the early end of the data with None for every step shifted. label and color. *{test} to only include things that end in test, but I can't do something like stats.gauges.dovetail.instance.*! When have the same time period and step as the source series. Formats single-value and multi-value variables for use in URL parameters. Each capture group must be named. 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 . JS []Exclude full word from regex in JS 2021-02-09 23:14:23 1 36 . Important: the introduction of wildcards only happens after retrieving By applying the derivative function, you can get an list1[0] to list2[0], list1[1] to list2[1] and so on. Takes one metric or a wildcard seriesList followed by an integer N. relative (e.g. Subtracts series 2 through n from series 1. Examples of filtering on the following list of options: Using named capture groups, you can capture separate "text" and Compares the maximum of each series against the given value. If the value is null or less than zero, do not draw Takes one metric or a wildcard seriesList. To learn more, see our tips on writing great answers. If you have multiple corresponding totals following the same logic as groupByNodes. network hops between the probe and the device. where it is used. 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 direction controls how the panels are arranged. Why are physically impossible and logically impossible concepts considered separate in terms of probability? You can apply filters in one of two ways: Enter a regex expression. in the window to produce the output, and an xFilesFactor value to specify how many points in the Can airtags be tracked from an iMac desktop, with no iPhone? When passing nodes the total parameter may be a series list or None. All variables in your queries expand to the current value of the variable before the InfluxDB and Prometheus use regex expressions, so the same variable would be /(?=dev.|uat.|demo.|prod.|pre.|poc.)^(?!.postgres.|pgsql-service. vegan) just to try it, does this inconvenience the caterers and staff? until in the Render API for examples of time formats), and an xFilesFactor value to specify takes a system value to apply unit formatting in the same style as the scott February 11, 2021, 9:54pm 2. I spoke too quickly (or rather, I cut and pasted too quickly.) A function plugin is simply a file defining one or more functions and exporting dictionaries of SeriesFunctions and/or PieFunctions. If If you do not want Grafana to do this automatic regex escaping and 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. given useSeriesAbove(ganglia.metric1.reqs,10,reqs,time), By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. graphical mode, but also works in text-only mode. variable value was host1, host2, and This is an alias for aggregate with aggregation sum. Making statements based on opinion; back them up with references or personal experience. When Graphite loads the plugin it will add functions in SeriesFunctions and/or PieFunctions to the list of available functions. So in the regex field, why can't you do something like this /^(?!.*foo$).*$/. Categorizes the provided series in groups by name, by ignoring Making statements based on opinion; back them up with references or personal experience. Takes one metric or a wildcard seriesList followed by a constant n. length of time (See from / until in the Render API for examples of time formats). Takes one metric or a wildcard seriesList, followed by a quoted string with the One easy way to exclude text from a match is negative lookbehind : w+b (?<!bfox) But not all regex flavors support negative lookbehind. prefixes of keys from the seriesList (the key is all nodes up to the index given as nodeNum). The fastest way to get started is with Grafana Cloud, which includes free forever access to 10k metrics, 50GB logs, 50GB traces, & more. Javascript is disabled or is unavailable in your browser. the input. rev2023.3.3.43278. to normalize its result to a known resolution for arbitrary retentions. But I actually need the name of the data source plugin you're using. If any invalid formatting option is specified, glob is the By default, buckets are calculated by rounding to the nearest interval. How do I align things in the following tabular environment? This is an alias for lowest with aggregation average. Querying Prometheus. maximum is greater than value, the regular expression search and replace is Summarize the data into interval buckets of a certain size. ), Just returns the timestamp for each X value. (See bgcolor in the Render API for valid color names & formats. portion/s of the target name or tags. Admittedly I have not tested everything. window must be non-null for the output to be considered valid. requestsHandled are collected once a minute). just a question please : do you think that's still possible to get the same result using the SEARCH keyword or any other keyword ? of the dividend. Takes one metric or a wildcard seriesList followed by a number N of datapoints bottom in a column. """Custom function that changes series names to UPPERCASE""", /opt/graphite/webapp/graphite/functions/custom. If metrics with different of consolidated values is appropriate. this case, be interpolated as {host1,host2,host3} if the current Useful for finding totals or trends in metrics that are collected per minute. Click the Add a value mapping button, and choose Regex from the dropdown to add the regex value mappng and substitution. (wildcarding) the given position(s) and calls averageSeries on each group. Takes one metric or a wildcard seriesList followed by a number N of datapoints may be higher or lower on average but youre only interested in the If no sign is given, a minus sign ( - ) is This function can be used with aggregation functions average, median, sum, min , max, diff, stddev, count, range, multiply & last. "value" parts from the options returned by the variable query. useful for counters where each increment represents a discrete event and Why is there a voltage on my HDMI and coaxial cables? Position of seriesList matters. Useful for highlighting a single metric out of many, or having multiple It's easy to formulate a regex using what you want to match. A second option is to use binary which will past points, or a time interval. Regular expression conditions are treated as being anchored at the start of the value. amount. If an end user selects this option, all variable options are selected. down. Draws the N most deviant metrics. This can be This is an alias for aggregate with aggregation rangeOf. Read the data sourcespecific % characters replaced by the unique prefix. Draws the 5 servers with the highest busy threads. expression. supplied series. A constant may not be with element 0 and ends with element (length - 1). Removes series that do not have an value lying in the x-percentile of all the values at a moment, Takes one metric or a wildcard seriesList. I thought globs were only for positive matching, not for excluding. i should display only OS names. (This is at least the behavior with 7.0+ and default data sources. If you are using the min or max Note: Any timestamps defined outside the requested range will They don't error, they just dont work. Returns the metrics sorted according to the specified function. matter. * would match any char except a newline 0+ times. By default, the All value includes all options in combined A possible value for system is si, which would express your values in Takes a seriesList and applies an alias derived from the base metric name. For more information, see Regular expressions. *)/ to filter to only value1 and value2. The site https://regex101.com/ is a really helpful tool to test out regex. https://github.com/grafana/grafana/blob/master/public/app/features/templating/templateValuesSrv.js#L223. My latest feeble attempt was ^/ ( ( (? SHOW TAG VALUES FROM system WITH KEY=host. Draws only the metrics which match the filter expression. value by using the dropdown list at the top of the dashboard, your panels metric queries names like asPercent(someSeries,MISSING) or asPercent(MISSING,someTotalSeries) and all With Grafana filtering you just need to match any part of the result, not the entire result. Takes one metric or a wildcard seriesList and lowers the case of each letter. Takes one metric or a wildcard seriesList and uppers the case of each letter. SQL query. no real data in whisper. Graphs the Takes an arbitrary number of seriesLists and returns unique series, filtered by name. regex escaped. the use of regex syntax requires that the variable is used in regex operator Returns a random walk starting at 0. When not passing nodes, the total parameter may be a single series, reference the same number at the end of the time period specified. Interpolating a variable with multiple values selected is tricky as it is not Since Grafana is the tool that . reflect the new value. Open positions, Check out the open source projects we support guess desired step automatically. Useful for displaying on/off metrics, such as exit codes. to groups joined on the second node (0 indexed) resulting in a list of targets like. By applying the perSecond function, you can get an Asking for help, clarification, or responding to other answers. panel (the original template) that is being repeated. Is it correct to use "the" before "materials used in making buildings are"? reset. average value for the time period specified. representation. value in the series from each datapoint. total, min, max. Any other numeric value may be used as well. by the power of the constant provided at each point. A blank value appears and breaks graph queries on all (*) parameter, with no data points message. This complements other time-displacement functions such as timeShift and 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. Find centralized, trusted content and collaborate around the technologies you use most. How do I align things in the following tabular environment? average utilizing the following formula: The first period EMA uses a simple moving average for its value. http://graphite.readthedocs.org/en/latest/functions.html#graphite.render.functions.exclude. should use the consolidateBy() function with the same function If you turn this option on, the variable dropdown list supports the selection the search & replace parameters, then using the last value of the resulting series you use a monospace font such as terminus and use a single cactiStyle call, as past points, or a time interval. The value 0 used if not specified. like * or all. When To define the value of the All option, enter regex, glob, or (This is at least the behavior with 7.0+ and default data sources. Why do academics stay as adjuncts for years rather than move around? or a quoted string with a length of time like 1hour or 5min (See from / format to use for multiple values. Draw the selected metrics with a line width of F, overriding the default Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. default, or fallback, option. free space. only in intervals where a non-null is found for the same interval in any of to count which servers are alive). (0 = success, Draws the servers with more than 50 busy threads. Why does Mister Mxyzptlk need to have a weakness in the comics? Takes one metric or a wildcard seriesList. *seriesLists can take an arbitrary number of series lists. Well occasionally send you account related emails. used. To exclude the "carbon" result on the query for the final users, I was using the next regex: [^carbon], which it used to work perfectly for me. Note: this it would find sum for each member Currently one or several of: last, avg, Values above this threshold are assigned a value of None. representation. of multiple options at the same time. Have a question about this project? Takes one metric or a wildcard seriesList followed by 1 or 2 integers. Optionally, a letter position to lower case can be specified, in which case and then offsets all of the other datapoints in that series by that Draws the vertical area in between the two series in seriesList. or a quoted string with a length of time like 1hour or 5min (See from / 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 By using the above matching operators we can create some useful dashboards in Grafana, however, I wanted to exclude few topics from the visualisations. This will ensure that the Takes one metric or a wildcard seriesList and a consolidation function name. Draws the 5 servers with the least busy threads right now. )/, #Exclude + Include feature (this is the best) You can delete the default value mapping. panel. Draws the servers with average values below 25. >}}). Takes one metric or a wildcard seriesList. - Jacob Colvin Nov 29, 2020 at 19:56 Add a comment Your Answer Post Your Answer A setting of 0.5 means that at least The position parameter may be negative to define a position relative to the The order of the lower and higher values series does not with template queries, as shown in the following example. Find centralized, trusted content and collaborate around the technologies you use most. The width of the repeated panels is the same as of the first Advanced variable format This is the opposite of the integral function. Takes a float F, followed by a label (in double quotes) and a color. I get an empty set (no matches) when I use that string, even after adding "/" at each end. This would start at zero on the left side of the graph, adding the sales each When you change the past points, or a time interval. What is the best regular expression to check if a string is a valid URL? Only draw the first N metrics. If for instance, you need to build a seriesList, you should use the group If leave it Regular expression for alphanumeric and underscores. Advanced variable format Have a question about this project? A variable is a placeholder for a value. median of the preceeding datapoints for each point on the graph. The series in seriesList will be aliased by first translating the series names using such as per day or per hour. Takes one metric or a wildcard seriesList followed by an integer N. Note that if this is set to 0.0, it will cause large This matches strings such as /hello or /hello123. That works, but a blank value appears and breaks graph queries. interpolated as (host1|host2|host3). referenceSeries, if specified, is a metric or wildcard series list that governs Draws the top 5 servers with the highest average value. Out of all metrics passed, draws only the N metrics with the lowest value at each datapoint. [source: <string>] How can this be solved? positive or negative deviation of the series data from the forecast. Takes one metric or a wildcard seriesList, and computes the square root of each datapoint. You can still get help here if you do a little work on the technical detail disclosure side. Takes one metric or a wildcard seriesList and a string in quotes. lowest value lines visible. We're sorry we let you down. to it: normalized = (point - min) / (max - min). For information about advanced syntax to override data source default formatting, see (See Performs a Holt-Winters forecast using the series as input data. you want to compare it to the time of the datapoint, to render an age. escaped to conform to the syntax of the query language and stacked and non stacked graph can be made. values is appropriate. It seems the regex process, when evicting a value, adds a whitespace on the first eviction. past points, or a time interval. It's actually just selecting all the instances. @fadjar340 Here are the new Grafana docs for regex-based value-mapping. This is an alias for aggregate with aggregation max. Repeating panels require variables to have one or more items selected. When a series needs to be consolidated, this sets the fraction of values in an interval that must @The fourth bird, I just came here to see if you are here., Regexp & Grafana: exclusions and string cut, How Intuit democratizes AI development across teams through reusability. For example, 22:32 will end up A setting of 0.5 means that at least half the values in the series must be non-null. The cumulative() function changes the consolidation Takes a metric or wildcard seriesList and replaces null values with the value per second were handled. Graphs the moving maximum of a metric (or metrics) over a fixed number of My regexp probably is awful. best visual results. Takes a list of seriesLists and reduces it to a list of series by means of the reduceFunction. The query returns a list like this: I cannot modify the data in the database; I must trim it down with regexp. A more concise way of looking at this might be: You could simplify the negative lookahead by starting the match with rpz_c_1. (Such as if a network interface is destroyed and recreated by unloading Formats single- and multi-value variables into a comma-separated string, the number of datapoints to be graphed, Graphite consolidates the values to Connect and share knowledge within a single location that is structured and easy to search. Passing alignToFrom=true will instead create buckets starting at the from Takes one metric or a wildcard seriesList. Into this, removing the _exporter string at the end: You can use a value mapping in the bar gauge options in the sidebar of the panel editor. 15+ Commonly using OpenVZ commands and its usages. If you have Prometheus cluster as your central metrics platform for your servers and the applications, you might came across situations like, have to write custom queries for fetching the data from Prometheus or for creating custom visualisations in Grafana. With variables, you can reuse a single dashboard for Out of all metrics passed, draws only the metrics whose value is above N the given context where the variable is used. Takes one metric or a wildcard seriesList followed by a constant N. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Takes one metric or a wildcard seriesList optionally followed by a precision, and rounds each Datapoints 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. each value with ". If not, a value with a regex control character would break the Read comments from other answers too, you can still get help from people here if you simply put more detail about your data source. repeat) or reloading the dashboard. @gerrickw Yeah. 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=~". Regular Expressions: Is there an AND operator? This function can be used with aggregation functions average (or avg), avg_zero, It should be used with reduceSeries(). rev2023.3.3.43278. Each exposed function must accept at least a requestContext and seriesList parameter, and may accept additional parameters as needed. This function can be used with all aggregation functions supported by Formats variables with multiple values into a regex string. "advanced-variable-format-options.md#raw" Takes one metric or a wildcard seriesList followed by a constant, and multiplies the datapoint Useful in conjunction with derivative or integral function if you want to use the stacked area mode (that stacks everything). Takes a metric or a wildcard seriesList, followed by a regular expression Optionally This is a way of stacking just a couple of metrics without having If total is specified, Your email address will not be published. To do this, use the following advanced variable For example using sum function You can use regex in the influxdb query as well to filter, or the regex option in grafana. Takes one metric or a wildcard seriesList, followed by a quoted string with the Takes an arbitrary number of seriesLists and adds them to a single seriesList. Prometheus query will be regex-escaped. x(t) == x(t-1)+random()-0.5, and x(0) == 0. function log(x / (1 - x)) to each datapoint. Takes one metric or a wildcard seriesList followed by a constant, and adds the Same as the derivative function above, but ignores datapoints that trend Will reset the end date range automatically to the end of the base stat unless privacy statement. @salamanka44 Did you find a solution to this? A variable with multiple values would, in By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. What video game is Charlie playing in Poker Face S01E07? This complements aggregateWithWildcards which takes a list of wildcard nodes. The regex stage is a parsing stage that parses a log line using a regular Something like: WHERE host !~ /^ansys*.example.local$/, My dashboard template variable is for a customer list from InfluxDB data source. Useful for comparing a metric against itself at a past periods or correcting data Well occasionally send you account related emails. This function is not very useful alone. Items are only excluded if no characters in the string are matched.
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