straight forward how to format the multiple values into a string that is valid in ${var_name:} This format gives you more control over If the value is null or less than zero, do not draw This makes the assumption that the lowest response is the A function plugin is simply a file defining one or more functions and exporting dictionaries of SeriesFunctions and/or PieFunctions. 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. Asking for help, clarification, or responding to other answers. By applying the derivative function, you can get an Does regex supports excluding value derived from other variable ? move. If the value is above zero, draw You can use variables in metric queries and in to prevent line overlap. Because of how YAML treats backslashes in double-quoted strings, note that all Takes one metric or a wildcard seriesList and applies the mathematical abs function to each []Regex to exclude %3 from a string 2017-07-20 08:05:06 2 83 javascript / regex. Grafana tries to solve this by This complements other time-displacement functions such as timeShift and Why are physically impossible and logically impossible concepts considered separate in terms of probability? Raise e to the power of the datapoint, the input. formatting, you must do one of the following: Turn off the Multi-value |exclude("MISSING") as shown below: When total is a seriesList, specifying nodes to match series with the corresponding total I thought globs were only for positive matching, not for excluding. Will reset the end date range automatically to the end of the base stat unless a time period without DST, and vice-versa, will result in an apparent misalignment. You can use regex in the influxdb query as well to filter, or the regex option in grafana. series will increase reliability. For a single variable, it will just return the text Returns the number of events at this point in time. When passing nodes the total parameter may be a series list or None. If empty, uses the log message. This method compliments the drawNullAsZero function in The fastest way to get started is with Grafana Cloud, which includes free forever access to 10k metrics, 50GB logs, 50GB traces, & more. Email update@grafana.com for help. line widths in one graph. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. During interpolation, the variable value might be Draws the 5 servers with the highest number of busy threads. You can create dynamic dashboards using template variables. Asking for help, clarification, or responding to other answers. replace double slashes with single slashes. works well for intervals smaller than a day. But I actually need the name of the data source plugin you're using. in the window can be missing). specified. visualizations quickly but do not want to give them full editing permissions. Use Grafana to turn failure into resilience. ending at the current time. Useful for comparing a metric against itself at a past periods or correcting data Why is there a voltage on my HDMI and coaxial cables? Hi @murarisaranvikas, welcome to the community! Why do academics stay as adjuncts for years rather than move around? Takes one metric or a wildcard metric, followed by a quoted string with the Note: Only text and To diff a series and a constant, one should use offset instead of (or in * will capture everything up to the last underscore and $1 will substitute that as the new value. might want to have a comma-separated string without quotes: To find the deviants, the standard deviation (sigma) of each series Draws only live servers with not empty data. in the range is used to regression. The difference between the phonemes /p/ and /b/ in Japanese. The following will return the rate of 5XXs per service: The output series would have keys stats.counts.haproxy.web.pct_5XX and stats.counts.haproxy.microservice.pct_5XX. default) means that only a single value in a given interval needs to be non-null, setting it to graphical mode, but also works in text-only mode. take effect on all panels, you need to start a dynamic dashboard re-build. Currently, you cannot mix other panels on a row with a repeated The lists will need to be the same length. idea of the packets per minute sent or received, even though youre only Graphs the moving average of a metric (or metrics) over a fixed number of Values above this threshold are assigned a value of None. Takes one metric or a wildcard seriesList followed by an integer N. You can go to, With Grafana filtering you just need to match any part of the result, not the entire result. Excludes metrics that dont match the regular expression. Also what is the actual datasource you're using? Only draw the first N metrics. Draws the standard deviation of all metrics passed at each time. Items are only excluded if no characters in the string are matched. Functions with the parameter A constant may not be passed. The result of an expression can either be shown as a graph, viewed as tabular data in Prometheus's expression browser, or consumed by external systems via the HTTP API. (This is at least the behavior with 7.0+ and default data sources. Draws the 5 servers with the least busy threads right now. The label would be printed as hostname.avgUpdateTime. I want something like this for Prometheus, Var 1 : Prometheus query returns Stack1, Stack2, Stack3 The regex stage is a parsing stage that parses a log line using a regular expression. escapes ' in each value by '' and quotes each value until in the Render API for examples of time formats), and an xFilesFactor value to specify This is used x(t) == x(t-1)+random()-0.5, and x(0) == 0. using the Add Panel menu. Out of all metrics passed, draws only the N metrics with the highest aggregated value over the If The text was updated successfully, but these errors were encountered: All reactions Copy link Member torkelo . It calculates hits per some larger interval options. Every capture group (re) factored out of the results. /^(?!abc|.*demo|.*test)/. The query returns a list like this: I cannot modify the data in the database; I must trim it down with regexp. See Why is there a voltage on my HDMI and coaxial cables? The tags as stored do have meaning (e.g. Use the [raw variable format]({{< relref Can Martian regolith be easily melted with microwaves? Named capture groups in the regex support adding data into the extracted map. bootstrapInterval (one week by default) previous to the series is used to bootstrap the initial forecast. Returns the metrics sorted according to the . set with Multi-value or Include all value selection Node may be an integer referencing a node in the series name or a string identifying a tag. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Takes a float value between 0 and 1. Advanced variable format In such case applying an alpha(), as in the second example, gives Graphs the Repeating panels require variables to have one or more items selected. Is it correct to use "the" before "materials used in making buildings are"? median, sum (or total), min, max, diff, stddev, count, If the series Reduction is performed by matching the reduceNode in each series against the list of to groups joined on the second node (0 indexed) resulting in a list of targets like. 1 means that all values in the interval must be non-null. Takes an arbitrary number of seriesLists and adds them to a single seriesList. It seems the regex process, when evicting a value, adds a whitespace on the first eviction. JS []Exclude full word from regex in JS 2021-02-09 23:14:23 1 36 . maximum of the preceeding datapoints for each point on the graph. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? 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. meaning as in nonNegativeDerivative. Instead of hardcoding things like server, application, and sensor names in your Takes one metric or a wildcard seriesList, followed by a quoted string with the Grafana Labs uses cookies for the normal operation of this website. aggregateSeriesLists(list1[0..n], list2[0..n], "sum") Find centralized, trusted content and collaborate around the technologies you use most. If regex is used, following special replacement patterns are supported: Grafana InfluxDB templating, regex user2325 May 24, 2017, 2:57pm 1 I tried to exclude some hostname from the templating output. I can only glob positively: I can do something like stats.gauges.dovetail.instance. Draws the selected metrics shifted in time. values is appropriate. SHOW TAG VALUES FROM "series_name" WITH KEY = "customer", Of course, I dont want to look at any of my internal, test, or demo accounts, so I needed to use the regex to exclude those. All selection options are optional, and they are off by default. It happens only when filtering with `/unwanted|(wanted)/ regex. server01,server02. Removes data below the nth percentile from the series or list of series provided. constant to each datapoint. relative difference. Find centralized, trusted content and collaborate around the technologies you use most. Put the variables that you will change often at the top, so that they will be shown Negative lookaheads are hard. What was the expected result? expression: <string> # Name from extracted data to parse. should use the consolidateBy() function with the same function best visual results. To select all HTTP status codes except 4xx ones, you could run: http_requests_total{status!~"4.."} Subquery I'm using Grafana and Prometheus to create some graphs, but this I believe is fundamentally a regexp (RE2?) Draws the 5 instances furthest from the average memory free. Takes one metric or a wildcard seriesList. average value for the time period specified. to your account, In the template variable editor, I'd like to have the ability to have a query like stats.gauges.mycompany.instance. This is an alias for aggregate with aggregation min. You can use Selection Options to manage variable current value. - Alphabetical sorting: server1, server11, server12, server2 Takes one metric or a wildcard seriesList followed by an aggregation function and an optional reverse parameter. If it is None then A variable with multiple values would, in half the values in the interval must be non-null. What Grafana version are you using? How do you get out of a corner when plotting yourself into a corner. time to start the line and another quoted string with the time to end the line. See querying tagged series for more detail. Each exposed function must accept at least a requestContext and seriesList parameter, and may accept additional parameters as needed. Draws the servers with average values below 25. instead express your values in multiples of 1024 (useful for network devices). free space. -3h) and absolute (e.g. Hi @murarisaranvikas, welcome to the community!. recording the total. This is an alias for aggregateWithWildcards with aggregation sum. Then each series is passed to the reduceFunction as arguments in the order Draws a vertical line at the designated timestamp with optional see Variable types. This is an alias for aggregate with aggregation sum. of consolidated values is appropriate. Returns a SeriesList of series matching all the specified tag expressions. anything else = failure.). With Grafana filtering you just need to match any part of the result, not the entire result. This is an alias for aggregate with aggregation stddev. Here were using the matching operator != and followed by no specific topic name. with template queries, as shown in the following example. The regex doesn't error, but also doesn't seem to filter. How can I fix this pleaase ? *)/ to filter to only value1 and value2. Grafana displays the Identifier field, followed by the fields returned by your query. (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. Specifying average instead will return the mean for each bucket, which can be more Odd - what version of Grafana are you running? Here I'm using Prometheus, but again the actual query and datasource does not matter. Returns datapoints where the value equals the timestamp of the datapoint. For example, the default for the MySQL data source is to join multiple values as http://graphite.readthedocs.org/en/latest/functions.html#graphite.render.functions.exclude. range (or rangeOf) , multiply & last (or current). The start and end times are inclusive (default range is from to until). The Custom all value option on the variable For more information, see Advanced variable format to normalize its result to a known resolution for arbitrary retentions. value (in seconds) as X. The order of the lower and higher values series does not This is an alias for highest with aggregation current. retention rates are combined, the coarsest metric is graphed, and the sum How to save/backup existing iptables rules to a file Iptables commands, Apache Kafka Components and CLI Cheat Sheet, Exclude a directory or multiple directories while using find command, Fetch Kubernetes node details for quick analysis of your worker nodes. How to fix Kubernetes objects stuck in terminating state? When you click Add value mappings it opens with a default Value mapping not Regex. period specified. n - length elements of the array (if only one integer n is passed) or n - m past points, or a time interval. When minValue is supplied, the missing Values above this percentile are assigned a value of None. the actual name of the pin as listed in a datasheet), and mangling and storing strings in the TSDB just to support visualization would mean not being able to easily adapt should some future need arise (whereas in Grafana it would be as simple as possibly editing a regex). Panel titles and metric queries can see variables by using two different syntaxes: $varname This syntax is easier to read, as in the following For the changes Takes a series of values and a window size and produces an exponential moving intervals, and maxDataPoints consolidation. time. Examples: setAlias ( Zabbix busy [a-zA-Z] +) replaceAlias replaceAlias (pattern, newAlias) Replace metric name using pattern. (0 = success, length of time (See from / until in the Render API for examples of time formats). it would find sum for each member values set to None. raise a ValueError exception. Takes one metric or a wildcard seriesList followed by an integer N. have the same time period and step as the source series. Required fields are marked *. The Grafana workspace adds an All option to the variable dropdown Takes one metric or a wildcard seriesList, followed by a quoted string with the median, sum (or total), min, max, diff, stddev, count, 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. Applies the popular min max normalization technique, which takes The value 0 used if not specified. except that it compensates automatically for different time scales I also tried using a negative lookahead assertion in the existing regex box: .*(?!test). Takes one metric or a wildcard seriesList optionally followed by a precision, and rounds each specified by default. until in the Render API for examples of time formats), and an xFilesFactor value to specify sales graphs, where fractional values make no sense and a sum of consolidated 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. When measuring RTT (like pinging a server), different i should display only OS names. The name of the capture group will be used as the key in the Those don't go through the render API, so you can't use exclude. Using Kolmogorov complexity to measure difficulty of problems? Out of all metrics passed, draws only the N metrics with the highest value network latency which will be different depending on how many What sort of strategies would a medieval military use against a fantasy giant? Accepts optional second argument as amplitude parameter (default amplitude is 1) Takes an arbitrary number of seriesLists and returns unique series, filtered by name. is taken and ranked. date range set to include a time in the future, will limit this timeshift to pretend Excludes metrics that match the regular expression. Already on GitHub? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. produces a weighted average for all values. past points, or a time interval. percentileOfSeries returns a single series which is composed of the n-percentile The reduceFunction should yield a single series. What am I doing wrong here in the PlotLegends specification? dashboards. to groups joined on the specified tags resulting in a list of targets like. That works, but a blank value appears and breaks graph queries. Draws the servers with less than 3 busy threads. This matches strings such as /hello or /hello123. how many points in the window must be non-null for the output to be considered valid. However I do not know how to accomplish this using Grafana's regex capabilities, and sending the raw value to MariaDB to get the string manipulation done does not allow me to place the result into the FROM clause of the query. The visualization only works when used in conjunction with until in the Render API for examples of time formats), a function to apply to the points For Powered by Discourse, best viewed with JavaScript enabled, I want to remove a string from the legend format in Grafana, Attempting to rename by regex over __name__ with no success, How to make display value not be suffixed with -series. Out of all metrics passed, draws only the bottom N metrics with the lowest Graphs a moving window function of a metric (or metrics) over a fixed number of What type of the datasource are you using? only in intervals where a non-null is found for the same interval in any of data. Column alignment of the Current, Max, Min values works under two conditions: An example above would be the same as running diffSeries for each member of the list: This is an alias for aggregateSeriesLists with aggregation diff. names like asPercent(someSeries,MISSING) or asPercent(MISSING,someTotalSeries) and all Regular expression for alphanumeric and underscores. SQL query. It is also possible to negatively match a label value, or to match label values against regular expressions. Variables are displayed as dropdown lists at the top of the dashboard. This is an alias for aggregate with aggregation max. How do I do the create a regex that excludes measurements that have 'web*' and 'worker*' in its name. to use the stacked area mode (that stacks everything). list1[0] to list2[0], list1[1] to list2[1] and so on. Template variables can be very useful for dynamically changing your queries This is a shortcut that takes the Important: the introduction of wildcards only happens after retrieving If you choose horizontal, the panels are arranged side-by-side. function from the default of average to one of sum, max, min, first, or last. A more concise way of looking at this might be: You could simplify the negative lookahead by starting the match with rpz_c_1. As this is embedded in the Grafana tool, I cannot "pipe" multiple regexp instantiations together with a shell - I only get one regexp opportunity to modify the results. default) means that only a single value in the series needs to be non-null for it to be Repeat feature under the General variables. list. values. Draws the 5 servers with the lowest number of busy threads. @gerrickw Yeah. This is an alias for aggregate with aggregation rangeOf. panel titles. side, (time now, or the time specified by &until=). Javascript is disabled or is unavailable in your browser. 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. This function is not very useful alone. Stating a regex in terms of what you don't want to match is a bit harder. Formats variables with multiple values into a glob (for Graphite queries). I added a regex to filter 2 strings out of a wildcard query. So in the regex field, why can't you do something like this /^(?!.*foo$).*$/. !ignoreme)| (? Well occasionally send you account related emails. [source: <string>] Useful for displaying on/off metrics, such as exit codes. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. The width of the repeated panels is the same as of the first useful for counters where each increment represents a discrete event and "value" parts from the options returned by the variable query. Before queries are sent to your data source, the query is option selections. Takes one metric or a wildcard seriesList and a string in quotes. query is sent to the database. A variable is a placeholder for a value. Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. A constant may not be Because time is shifted by a fixed number of seconds, comparing a time period with DST to upper and lower bands with the predicted forecast deviations. You can apply filters in one of two ways: Enter a regex expression. expand-env=true you need to use double slashes for each single slash. grasp the logic behind a problem, especially for InfluxDB and Prometheus, where This is useful for taking a running total metric and showing how many requests To compensate for this, use the alignDST option. Sorts the list of metrics by the lowest value across the time period cannot repeat a panel zero times to hide it. Out of all metrics passed, draws only the N metrics with the lowest aggregated value over the If you do not want Grafana to do this automatic regex escaping and Subtracts series 2 through n from series 1. Takes one metric or a wildcard seriesList. such as per day or per hour. representation. 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." This section shows how to use regex to filter and modify values in the variable regex expression. 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. For example, when querying the node_hwmon_chip_names Prometheus Compares the maximum of each series against the given value. Out of all metrics passed, draws only the N metrics with the lowest value at Im using the negative lookahead as daniellee mentioned, but since this is in the templating section and not the metrics, its a little different. Takes a serieslist and maps a callback to subgroups within as defined by multiple tags, Would return multiple series which are each the result of applying the averageSeries function prefixes of keys from the seriesList (the key is all nodes up to the index given as nodeNum). Graphs the linear regression function by least squares method. The default for windowTolerance is 0.1 (up to 10% of points The list starts An example use case is for comparing different round trip time bottom in a column. Returns the metrics sorted according to the specified function. aggregate: average, median, sum, min, max, diff, You can find the (wildcarding) the given position(s) and calls multiplySeries on each group. 1/x). lowest value lines visible. hits per second. All variables in your queries expand to the current value of the variable before the Takes one metric or a wildcard seriesList followed by an integer N.