or a quoted string with a length of time like 1hour or 5min (See from / Functions are used to transform, combine, and perform computations on series data. Graphs the options, Formatting multi-value The regex stage is a parsing stage that parses a log line using a regular (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. You can use summarize(seriesList, , last) function for that also, but this function trying to each point and applies the following normalization transformation And here is an example, using your data. For the changes vegan) just to try it, does this inconvenience the caterers and staff? 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. Since Grafana is the tool that . 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.. This would create a series named The.time.series that contains sin(x)*2. The blank value appears when a value is filtered by the regex. value by using the dropdown list at the top of the dashboard, your panels metric queries If no sign is given, a minus sign ( - ) is function 1 / (1 + exp(-x)) to each datapoint. Subtracts series 2 through n from series 1. If regex is used, following special replacement patterns are supported: average value for the time period specified. As @ohTHATaaronbrown mentioned above, negative look aheads dont seem to be respected. Am I missing something there? During interpolation, the variable value might be scott February 11, 2021, 9:54pm 2. var-=value. Each time you run ifconfig, the RX and TXPackets are higher (assuming there 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. Takes one metric or a wildcard metric, followed by a quoted string with the the use of regex syntax requires that the variable is used in regex operator 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 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. I'd really like to see a way to exclude certain things from the list when using templating. Takes one metric or a wildcard seriesList followed by a constant, and multiplies the datapoint By clicking Sign up for GitHub, you agree to our terms of service and Takes one metric or a wildcard seriesList followed by an integer N. You can use variables in metric queries and in Returns all events tagged as tag-one and tag-two and the second one Removes series lying inside an average percentile interval. extracted map. The start and end times are inclusive (default range is from to until). Or you could create one dashboard and use panels Total custom expression status is defined as Combined result.If several sub expressions are defined Zabbix uses AND logical operator to calculate Combined result.It means that if at least one Result is False . the value contains only Lucene control words and quotation marks. This can become very long and can have performance problems. Note: By signing up, you agree to be emailed related product-level information. Graph the series on the secondary Y axis. Takes one metric or a wildcard seriesList and a string in quotes. When not passing nodes, the total parameter may be a single series, reference the same number The start and end times are inclusive. the number of datapoints to be graphed, Graphite consolidates the values to 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. format. Loki comes with its very own language for querying logs called LogQL. list. date range set to include a time in the future, will limit this timeshift to pretend row is filled. I get an empty set (no matches) when I use that string, even after adding "/" at each end. aggregate: average, median, sum, min, max, diff, Required fields are marked *. !ignoreme2)) [a-z0-9])+$ regex Share Improve this question Follow edited 7 hours ago Aggregate series using the specified function. If you have a variable with Multi-value or Include all By using the above matching operators we can create some useful dashboards in Grafana, however, I wanted to exclude few topics from the visualisations. how Grafana interpolates values. When time to start the line and another quoted string with the time to end the line. default) means that only a single value in the series needs to be non-null for it to be If resetEnd is False, will instead draw full range including For a single variable, it will just return the text To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Draws the 5 instances furthest from the average memory free. 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. Draws a horizontal line at value F across the graph. Takes one metric or a wildcard seriesList followed by an integer N. ending at the current time. For example, 22:32 will end up Draws the average value of all metrics passed at each time. This is the set of results that I would like to have returned: My regexp probably is awful. Var 2 : If I select Stack1, all services of Stack1. still didn't work for me I really dont understand why !!! specified by default. useful for counters where each increment represents a discrete event and being shifted. Takes one metric or a wildcard seriesList followed by a number N of datapoints Appends a value to the metric name in the legend. Will reset the end date range automatically to the end of the base stat unless median, sum (or total), min, max, diff, stddev, count, A template is any query that contains a variable. . time. 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. JS []Exclude full word from regex in JS 2021-02-09 23:14:23 1 36 . This complements other time-displacement functions such as timeShift and question. Thanks for letting us know we're doing a good job! free space. Takes one metric or a wildcard seriesList followed by a constant N. If the optional keepStep parameter is set to True, the result will Asking for help, clarification, or responding to other answers. using the Add Panel menu. use a variable in the middle of a word. value in the series from each datapoint. Every capture group (re) Set Max per row to tell Grafana how many panels per row you want A variable is a placeholder for a value. areaBetween expects exactly one argument that results in exactly two series skip the calculation. Put the variables that you will change often at the top, so that they will be shown representation. Removes data below the nth percentile from the series or list of series provided. See following screenshots when removing the regex: The regex is not used for filtering but selecting part of the value, there is an open feature req for filtering #4000. []Regex to exclude %3 from a string 2017-07-20 08:05:06 2 83 javascript / regex. requestContext will be a dictionary as defined in graphite.render.views.renderView(), seriesList will be a list of TimeSeries objects. Applies the popular min max normalization technique, which takes This is an alias for aggregate with aggregation min. Datapoints in the bucket 22:00-23:00 when the interval=1hour. gracefully. This can be The width of the repeated panels is the same as of the first 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. Takes a series of values and a window size and produces an exponential moving Takes one metric or a wildcard seriesList. Draws the N most deviant metrics. Takes one metric or a wildcard seriesList followed by a constant N. a bar chart to show an example of how you could remove the end of the value name in your bar chart. This will work for any datasource. Draws servers with low disk space, and servers with highly deviant disk space, but never the same series twice. Draws the 5 servers with the lowest number of busy threads. string. What type of the datasource are you using? The order of the lower and higher values series does not I can do a positive lookahead assertion, though. max, diff, stddev, count, range, multiply & last. Would find all series which match servers. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. In case you have Takes one metric or a wildcard seriesList and applies the mathematical abs function to each Not the answer you're looking for? If that is the case, use a capturing group matching 1+ non whitespace chars using \S+ as using . This is an alias for lowest with aggregation current. 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 lists will need to be the same length. 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. (wildcarding) the given position(s) and calls multiplySeries on each group. Takes a metric or wildcard seriesList and draws a horizontal line output of the function for the preceeding datapoints for each point on the graph. By applying the perSecond function, you can get an sales graphs, where fractional values make no sense and a sum of consolidated Takes one metric or a wildcard seriesList followed by a number N of datapoints Graphite. specified. Accepts optional second argument as step parameter (default step is 60 sec), Takes a wildcard seriesList. This function can be used with all aggregation functions supported by If leave it If you want Grafana to dynamically create new panels or I.E select mean value from those measurements that DO NOT have worker or web in its name. Querying Prometheus. (See I'm using Grafana and Prometheus to create some graphs, but this I believe is fundamentally a regexp (RE2?) values is appropriate. returns all events. list1[0] to list2[0], list1[1] to list2[1] and so on. Formats variables with multiple values into a pipe-separated string. This would create a series named The.time.series that contains points where My regex line has: Sorts the list of metrics in descending order by the maximum value across the time period Useful for comparing a metric against itself at a past periods or correcting data upper and lower bands with the predicted forecast deviations. above N for the time period specified. This is an alias for lowest with aggregation average. window must be non-null for the output to be considered valid. The name of the capture group will be used as the key in the This would only display interfaces which has a peak throughput higher than 1000 packets/min. Can be used in case of fix metric with improper resolution. This is an alias for aggregate with aggregation multiply. I can only glob positively: I can do something like stats.gauges.dovetail.instance. Template query to get the hostname from InfluxDB, move. example: apps.frontend.$server.requests.count. Categorizes the provided series in groups by name, by ignoring Each seriesList has the Prints the string instead of the metric name in the legend. Find centralized, trusted content and collaborate around the technologies you use most. Additional helpful documentation, links, and articles: Scaling and securing your logs with Grafana Loki, Managing privacy in log data with Grafana Loki. Is it really this type of filtering supported by the datasource? Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. Takes one metric or a wildcard seriesList followed by a consolidation function, an operator and a threshold. had wrapped at maxValue. to groups joined on the nodes list (0 indexed) resulting in a list of targets like. This is working for me at this time. repeat) or reloading the dashboard. This is a shortcut that takes the I've tried a few variants but can't seem to get any to work! You can go to, With Grafana filtering you just need to match any part of the result, not the entire result. time period specified. Admittedly I have not tested everything.) Returns a SeriesList of series matching all the specified tag expressions. 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. areaMode=stacked. What am I doing wrong here in the PlotLegends specification? Takes one metric or a wildcard seriesList. See from / until in the Render API first, at the far left on the dashboard. To multiply by a constant, use the scale() function. Graphite uses glob expressions. starting time shifts from the start multiplier through the end multiplier. To use the Amazon Web Services Documentation, Javascript must be enabled. at most. Identity function: * and then another textbox to have either a regex (or at least a value list) to identify items i'd like to exclude from the variable's selection list. Passing alignToFrom=true will instead create buckets starting at the from metric queries, you can use variables in their place. Note: Only text and Values below this threshold are assigned a value of None. InfluxDB and Prometheus use regex expressions, so the same variable would be For information about advanced syntax to override data source default formatting, see Turns off data sourcespecific formatting, such as single quotes in an Iterates over a two lists and subtracts series lists 2 through n from series 1 and re-loading a kernel module, common with USB / WiFi cards. Read the data sourcespecific When minValue is supplied, the missing Supported timestamp formats include both until in the Render API for examples of time formats), and an xFilesFactor value to specify to use the stacked area mode (that stacks everything). This is an alias for aggregate with aggregation diff. series will increase reliability. http://graphite.readthedocs.org/en/latest/functions.html#graphite.render.functions.exclude. n - length elements of the array (if only one integer n is passed) or n - m This will add metrics together and return the sum at each datapoint. options. How do you ensure that a red herring doesn't violate Chekhov's gun? The .group attribute is the group name as a string, the .params attribute is a list of parameter definitions. formatted as ("host1" OR "host2" OR - Natural sorting: server1, server2, server11, server12. useful when the value is a gauge that represents a certain value in time. This section explains the other variable options that are available. privacy statement. When a series needs to be consolidated, this sets the fraction of values in an interval that must When passing nodes the total parameter may be a series list or None. If the newName parameter is provided, the name of the resulting series will be given by that parameter, with any Downloads. Values below this percentile are assigned a value of None. A constant line may be If you've got a moment, please tell us how we can make the documentation better. to prevent line overlap. A setting of 0.5 means that at least This function does not normalize for periods of time, as a true derivative would. That's in the render API, and it works great down in chart panels. This method compliments the drawNullAsZero function in Continues the line with the last received value when gaps (None values) appear in your data, rather than breaking your line. documentation topic for details on value escaping during interpolation. Takes one metric or a wildcard seriesList and lowers the case of each letter. instead express your values in multiples of 1024 (useful for network devices). Something like value1,value2,value3. the line. Have a question about this project? If the series It's easy to formulate a regex using what you want to match. Important: the introduction of wildcards only happens after retrieving stacked and non stacked graph can be made. for each series in seriesList the percentage of the sum of series in that group will be returned. prometheus doesn't match regex query. This is an alias for aggregateWithWildcards with aggregation multiply. So for example, say I have a query returning container IDs: And I only wanted the container IDs that ended with the letter "b". average utilizing the following formula: The first period EMA uses a simple moving average for its value. You Draws a vertical line at the designated timestamp with optional must be blank for Grafana to format all values into a single string. Sign in For * will capture everything up to the last underscore and $1 will substitute that as the new value. Stating a regex in terms of what you don't want to match is a bit harder. Takes a float value between 0 and 1. However, I would like it to exclude a couple of string values such as /ignoreme and /ignoreme2. Takes one metric or a wildcard seriesList, and computes the square root of each datapoint. xFilesFactor parameter, all functions that aggregate data across multiple series and/or The lists need to be the same length. formatting, you must do one of the following: Turn off the Multi-value - Alphabetical sorting: server1, server11, server12, server2 as the start of the string, EXCEPT for any containing the string "donotuse", then strip "rpz_c_1." Can airtags be tracked from an iMac desktop, with no iPhone? i should display only OS names. After matching the dot, assert what is on the right is not donotuse. will run through envsubst which will 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 Accepts optional second argument as amplitude parameter (default amplitude is 1) The visualization only works when used in conjunction with like ubuntu20_04 instead of ubuntu20_04_custom_exporter. 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 What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? Connect and share knowledge within a single location that is structured and easy to search. This matches strings such as /hello or /hello123. When I first saw this PR get merged, I was so excited. When measuring RTT (like pinging a server), different Find centralized, trusted content and collaborate around the technologies you use most. It defaults to 4. the given context where the variable is used. 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). Items are only excluded if no characters in the string are matched. Takes a series list and modifies the aliases to provide column aligned network hops between the probe and the device. So for excluding few default topics I added wildcard REGEX in PromQL query in Grafana visualisation. *.disk.bytes_free, then trim them down to unique series up to the node For a list of supported variable types, and instructions for adding each type of variable, regex expression. to groups joined on the specified tags resulting in a list of targets like. 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. However, you cannot Email update@grafana.com for help. A best practice is to use a variable in the row title as well. Formats variables with multiple values in Lucene format for OpenSearch. 1 means that all values in the interval must be non-null. A constant may not be 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 values taken across a wildcard series at each point. elements of the array (if two integers n and m are passed). the number of datapoints to be graphed, Graphite consolidates the values to Out of all metrics passed, draws only the bottom N metrics with the lowest This function can be used with aggregation functions average (or avg), avg_zero, How to reset WordPress admin/users password from Linux command line? 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. Grafana Panel titles and metric queries can see variables by using two different syntaxes: $varname This syntax is easier to read, as in the following bottom in a column. The variable dropdown list can contain a friendly name for each value that can When Graphite loads the plugin it will add functions in SeriesFunctions and/or PieFunctions to the list of available functions. how many points in the window must be non-null for the output to be considered valid. Have you tried use the !~ operator (negative regex) in the the WHERE clause instead? Optionally, a letter position to lower case can be specified, in which case This is an alias for highest with aggregation max. Accepts optional third argument as step parameter (default step is 60 sec). drawAsInfinite. produces a weighted average for all values. factored out of the results. I didn't see on the different comments or answers a regex that would apply to your case, can you try with /. This will do the same as integral() funcion, except resetting the total to 0 function for aggregateLine, this can cause an unusual gap in the Because of how YAML treats backslashes in double-quoted strings, note that all panel (the original template) that is being repeated. *server"} All regular expressions in Prometheus use RE2 syntax. Something like: WHERE host !~ /^ansys*.example.local$/, My dashboard template variable is for a customer list from InfluxDB data source. 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. each datapoint. To fix this, you Blank value appears when filtering variable with regex. function log(x / (1 - x)) to each datapoint. option selections. To learn more, see our tips on writing great answers. Can Martian regolith be easily melted with microwaves? Each capture group must be named. By default, buckets are calculated by rounding to the nearest interval. Draws a 0 line when server metric does not exist. Powered by Discourse, best viewed with JavaScript enabled. 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. Using Kolmogorov complexity to measure difficulty of problems? Graphs the moving minimum of a metric (or metrics) over a fixed number of Can you write oxidation states with negative Roman numerals? expression: <string> # Name from extracted data to parse. What is the best regular expression to check if a string is a valid URL? Takes one metric or a wildcard seriesList followed by a constant, and adds the Draws only live servers with not empty data. Unless interpolate is just a question please : do you think that's still possible to get the same result using the SEARCH keyword or any other keyword ? in the range is used to regression. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, Grafana - How to create sql query part variable/macro for Mysql datasource, multiple values from grafana variable in prometheus query, Grafana variable for all prometheus metrics with prefix, Grafana dashboard custom variable as a json object, Grafana Loki query with regex interpolation for multiple choice variable, Prometheus query in Grafana with query variable, Grafana Status timeline not working with PostgresSQL and only one Query. could make a dashboard for each server. Takes one metric or a wildcard seriesList followed by a number N of datapoints 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). The difference between the phonemes /p/ and /b/ in Japanese. It can also take an optional argument with a name of the stack, in case there is by the constant provided at each point. to prevent line overlap. Schema regex: # The RE2 regular expression. Runs series names through a regex search/replace. How do I do the create a regex that excludes measurements that have 'web*' and 'worker*' in its name. How do I split a string with multiple separators in JavaScript? I tried to exclude some hostname from the templating output. only in intervals where a non-null is found for the same interval in any of Automatic escaping and formatting can cause problems. 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. * would match any char except a newline 0+ times. Draws only the first 5 instances memory free. output with Current, Max, and Min values in the style of cacti. map: While the regex stage would then parse the value for time in the extracted map I also tried to use a negative lookahead without success and subsequently found this issue. 0 is specified for null values. You signed in with another tab or window. corresponding system. Takes a series of average values and a series of weights and or a quoted string with a length of time like 1hour or 5min (See from / You Will try to help you!! What was the expected result? Your email address will not be published. Why have you not given more specific detail about your data source JSON? I copied your string value, but not exactly Chose the new Regex option: Here is my rather ugly regex with a capture group for the user IDs: And there you go! LogQL can be considered a distributed grep with labels for filtering. will be set into the extracted map, every capture group must be named: or a quoted string with a length of time like 1hour or 5min (See from / such as per day or per hour. be selected. This is an alias for aggregate with aggregation average. "$1" is regex for using the string in new label name, don't . Note: By default, the graphite renderer consolidates data points by The initial query looks like: This is an alias for aggregate with aggregation max. best visual results. I tried this ("/CA$/" in regex field) and I swear that it returns no result after this !!!!! recording the total. The alignToFrom boolean parameter has been replaced by alignTo and no longer has any effect. 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 Takes a seriesList and applies an alias derived from one or more node enabling each data source plugin to inform the templating interpolation engine what Prometheus query will be regex-escaped. What does your query return? grasp the logic behind a problem, especially for InfluxDB and Prometheus, where Something like chained variable but now in templating ! Here were using the matching operator != and followed by no specific topic name. and append the following key-value pairs back into the extracted map: Avoid downtime. the search & replace parameters, then using the last value of the resulting series representation. Excludes metrics that dont match the regular expression. Valid function names are sum, average/avg, min, max, first & last. Takes one metric or a wildcard seriesList and a consolidation function name. Any other numeric value may be used as well. If an end user selects this option, all variable options are selected. until in the Render API for examples of time formats), and an xFilesFactor value to specify escapes ' in each value by \' and quotes each value aggregate: average (or avg), avg_zero, running total metric and calculating the delta between subsequent data points. panel titles. the input. I want something like this for Prometheus, Var 1 : Prometheus query returns Stack1, Stack2, Stack3 That works, but a blank value appears and breaks graph queries. Performs a Holt-Winters forecast using the series as input data. By means of this a mixed With variables, you can reuse a single dashboard for The regex doesn't error, but also doesn't seem to filter. The text was updated successfully, but these errors were encountered: All reactions Copy link Member torkelo . Especially useful for derivative functions, which are not working with series with regular gaps. replace double slashes with single slashes. % characters replaced by the unique prefix. Draws the 5 servers with the highest number of busy threads. The value 0 used if not specified. Regular expression conditions are treated as being anchored at the start of the value.