Grafana difference between last value. Generally not needed in normal queries.

Grafana difference between last value option: to calculate countervalue difference between every record with LAG function and summarize it. Jan 5, 2022 · Grafana 7. Oct 13, 2022 · In grafana time series dashboards the grafana is showing the last value if the query doesn’t return any value to it… As I’m using Prometheus data source and I have Oracle SQL query so for example 12-10-22 if the source_name has 3 count and on 13-10-22 if the source name has no count… but on 13-10-22 the grafana shows 3 count still in time series graph and for your information I’m Jan 23, 2021 · Hi, I am currently trying to display difference of results from 2 sensors in a Grafana panel. The last(value) function specifies that we want to look at the field value with the most recent timestamp. However, those two panels reference completely different time ranges, which are overridden using query options, so I Jan 19, 2023 · Notice that the time selector remains at Last 15 minutes, but this value gets overridden by the relative time field. The organization of this data has me stumped how to do this - the consumption data is an integer number of kilowatt hours and I get a new record in Influx only when that value changes. 8 KB. table-panel Dec 21, 2022 · Hi. My questions are: How can i write this SQL query? Jun 9, 2022 · Prometheus stops returning time series if the distance between the latest sample and the requested timestamp exceeds 5 minutes by default. May 12, 2021 · As you can see in the picture below, I have a result set which consists of three sums grouped by the even_type. Nov 24, 2021 · How can i calculate a difference between On and Off and show this difference in 3th column? Jun 6, 2021 · The source gives me a cumulative value, so the goal is just to have a difference per hour between the last value of the current hour and the last value of the previous hour. 2 (running in k3s, browsing through recent Chrome on Arch Linux, as well as an very outdated Chrome on a very outdated Nexus10 tablet - but I’m pretty sure it’s not a client issue) What are you trying to achieve? This might sound like a weird one, since it’s basically one of the main use cases for the Stat panel Dec 4, 2022 · I have a time serie like GasSummaryConsumption. 1st. 1. Sep 22, 2019 · I’m working with a simple InfluxDB data source, which logs a single measurement which I’d like to display on a graph. This is the data (energy used for heating → cumulative) in the InfluxDB so far for the current month: Every day, after midnight, the usage of the previous day is produced, and added to the Influx database. Jun 28, 2020 · Help with calculating difference between current time and timestamp of the last non-zero row. If your data is empty when using differences, try increasing the date histogram interval. 03 and have this value 0. Can you please help me wi… Feb 23, 2020 · When formating as a timeseries, I can see that my query does not create one value, but many values (differences) image 1820×547 47. 32. When I calculate time difference between two datetime I get strange values: This is the query: SELECT $__timeGroupAlias(time,$__interval Jul 26, 2023 · What Grafana version and what operating system are you using? Grafana 10. image 1566×1084 75. X · Issue #124 · grafana/influxdb-flux-datasource · GitHub Related topics Topic Mar 28, 2024 · I have a java application that prints periodically GC logs in the format: 2024-03-26T16:30:04. Was this page helpful? Feb 10, 2017 · Hi, I like to have a Singlestat Grafana panel which shows the diiference between the first() and last() value of a query. I have got two Colums: timeseries and amount/sum. What I want to do it calculate the time difference between last long and last hello login, then send an alert if the difference is greater than say 30 minutes Understanding the difference between the first and last functions in Grafana is crucial for accurate data analysis and visualization. 7. When I get traffic data from RouterOS with SNMP, instead of mbit/s traffic, it shows the total traffic passing through the interface as bytes. 5] Table Value Last (Not Null) Table Panel. May 12, 2023 · Hello, I’m trying to configure the dashboard so when i select the time range, a bar gauge will show the difference of the value between the timestamps. I’m currently using Grafana for a project and facing a challenge that I couldn’t resolve after reviewing the tutorials, forums, and documentation. You can identify counters by one of the following methods: the type in the textfile output (ex: # TYPE http_requests_total counter) the value is monotonically increasing (grafana proposes counter related function when it detects it) Mar 7, 2023 · Tool to take difference between last value and preceding value Hello, As many tools return cumulative indicators it would be interesting to be able to use the difference between the values of N and N-1 to get more "informative" data. object001. Not able to find a way to do this. finish) value. Using Graphite as the Grafana data source. To get the value for 2022/05/19 18:00:00 - 2022/05/20 00:00:00 just use an interval of 2h and get the computed value for 2022/05/20 00:00:00 by using a Table. I want to show a value of -20%, somewhere. Differences requires the data to be sequential. start) value, one with the last (i. Apr 29, 2019 · I’m trying to work out how to subtract one singlestat value from another, to display the difference as a third value. Sep 18, 2020 · Hi, I have a measurements like this: value time 35101 1599719557000000000 35101 1599733107000000000 35102 1599733127000000000. In my InfluxDB database I have a measurement that holds values of both sensors: &gt; SELECT * FROM &quot;Vergleich&quot; WHERE time&gt;now(&hellip; Sep 5, 2023 · Cast the fields to time to calculate the difference between the End Time and First Time. Aug 31, 2021 · Although most deal with first / last values returned by a query, and not last / last - 1. May 20, 2020 · When migrate Singlestat panel to new Stat panel, I can’t find the “Time of last point” option in view anymore. So in the above table, it would for sensor 2 use value 31 at 1417. Jan 15, 2018 · It’s a bit tricky with InfluxDB (compared to Graphite and Prometheus) but it is possible. New replies are no longer allowed. The idea is to create 2 tables, one with only the first value and the other with only the last value, then to perform a union between both. Something along the lines of this: Feb 6, 2022 · Hello, I’m using grafana (v8. with ES data source and have a dashboard that displays single stats and graphs for server status overview. The query accesses a Mysql db of the finance tool gnucash. I'd like the last value, v(n) to be plotted at n, v(n) - v(1). But I’m not sure how to do this as I am new to Grafana. I’m using RouterOS SNMP and InfluxDB - Telegraf. 12345 seconds 2024-03-26T16:30:05. If one timeserie has a NULL value then the calculated difference is 0. 3 I have an electricity meter that counts the imported electricity, but only for the day in question. 63), and then calculated the difference as -5 degrees Jan 17, 2024 · Hi, I am trying to get the difference between first and last value of a query, and I tried to get by to different querys. Example 1: t0: 185 t-1: 188 Okay no May 6, 2021 · I recently set up a software defined radio to read my house power meter and store it in InfluxDB, and would like to visualize this consumption in Grafana. Meaning, get the most latest value according to time from the query results. Aug 30, 2023 · Hello everyone, I still haven’t found an answer to my question on your community and that’s why I’m turning to you all. Maybe these links will help you figure it out: Nov 13, 2023 · Hello! I am trying to create an alert based on a timestamp difference I have two different values coming into Grafana from Zabbix, last login time, and last login time with Windows Hello. I want to display current value in all single stats. My plots are still missing 2 hours, although the current value is being shown at the correct time. Can someone tell me how i can do this with ES as i think that it's because I'm using ES instead of influxdb why I'm having this problem Mar 12, 2019 · I was unable to do this in grafana (subtracting two queries) and was able to do it with a postgres query (including grafana macros): SELECT (first / second * 10000 - 10000) as spread, time FROM ( SELECT $__timeGroupAlias("time",$__interval,previous), avg(bid) AS "first" FROM bbo_20s WHERE $__timeFilter("time") AND market = 1 GROUP BY time ) AS e FULL JOIN ( SELECT $__timeGroupAlias("time Jul 20, 2017 · You need to use delta function. 3 What are you trying to achieve? Have a table with Date and Value column which is a time series. I am able to get those values in table: [image] resulting in: [image] but I want the differe&hellip; Jan 20, 2025 · calculate difference between last value and last but one value of metric and show the result on dashboard. Then I’d like to be able to manipulate that value, like being able to divide it by the Jan 10, 2021 · I want to use a stat visualization to display the difference in percentage between the first and the last value of an sql result displaying stock data. null minus some value is always null; Some value v minus null is v minus the last non-null value seen before v; or null if v is the first non-null value seen. I just want something like panels_meters[0] - panels_meters[1] assuming panels_meters as an array of data sorted chronologically inverse. Choose the last calculation from “Value options” and select Numeric fields to show only the value of the metric in the panel. Warning - I’m a beginner. Dec 19, 2020 · As you can see, there is a difference, lost, between 19:41:38 (last value) and 20:00:34 (first value next hour). The previous 90 days average value of AverageInMins is 100. when I ch&hellip; Jan 23, 2024 · Now, i want to show the % change between the current time period and the previous. Apr 17, 2019 · Use influx. I understand that if I implement a table it shows the timestamps, but I cant have an operation between the last timestamp and the actual current time. Could you please help me Apr 19, 2021 · This topic was automatically closed after 365 days. I’m using this to show the difference between a prediction and the actual measurement. How can I achieve this? Any advice is greatly appreciated. But I’m having issues so decided to get more simple and just see if I can get the difference between two values. I would to show, maybe in a graph bar, the time difference between the last value and the previous value of a single value. 18: 01-01-25_08-03-13: 0. To use this function, you need to configure a date histogram dimension as well. To take an example, let’s say i am viewing the last 90 days of data. I am able to get those values in table: resulting in: but I want the difference between these two values so I can use it in a Singlestat panel. In selecting the value to use i don't see the possibility to use the current or last value in the series. I would like to have a third one showing the difference between both. What I’m aiming for is a way to show 6 different singlestat values, each one showing the sum of a measurement for “yesterday”, “the day before yesterday”, “the day before that” and so on. Learn about the calculations you can apply to your data Jul 2, 2019 · I am trying to get the amount of time an object takes between certain stages. 3. 8-alpine Grafana v10. e. I can run some general queries in the influx console which i’m finding hard to mimic the same in grafana. No matter what the first value (v1) is in the time series, I'd like the value to be plotted at 0, 0. Nov 21, 2024 · Hello, community! I am building a dashboard in Grafana to monitor the latency and the number of requests made to a specific API. Eventually, what I am trying to do is display the difference between two values separated from 24 hours - therefore being also able to filter out the lines that Jan 20, 2025 · calculate difference between last value and last but one value of metric and show the result on dashboard. May 6, 2022 · I have two seperate queries which produce a count result each Is there a way to do simple calculations like the difference between Query A and B = Query A minus Query B in the past 60 minutes This is what id like to do. Nov 12, 2024 · My objective is to show new exceptions in a table/log format (things that appeared in the last 3 days). The result would be the same if I was using the first value, but the ergonomy would be different because I would have to wait the next hour to get the consumption of the May 11, 2020 · The two-hour difference between the last value and now is due to +2:00 time zone we are in. 19: I want to calculate 0. E. Can someone tell me where i Dec 28, 2016 · What this will do is choose the last values of "used" in 5 minute intervals (buckets), and then compute the differences between those "last" values. I get in two different querys the values and tried to do a math expression that doesn’t seems to work properly, and I don’t understand why Anyone could help me understanding how can I get the desired result? Aug 30, 2022 · I’ve tried deleting and recreating the TIme Series in Grafana, leaving all options as default, but I can’t work out why there is a 10-minute difference between the timestamps in the InfluxDB data and the representation of that data in Grafana. If nonNegative and initialZero are set to true, difference() returns the difference between 0 and the subsequent value. In the selected period I want to calculate time difference between actual record and previous record and summarize it. 2 KB Changing the Relative time to 15 seconds, I get only 1 point (because that’s all there is over the past 15 seconds). g. So I would like to go back on every temp sensor measurement and subtract it from the “last available” wetness value. Then you could use a map function or even Grafana to calculate the difference between the field value and now. For example: “2021-08-31 15:36:15”, “10” “2021-08-31 15:39:15”, “20” Wanted to group it by day and sum the values per day for example “2021-08-31”, “30” I Made the following transformations but as you see didnt get any result as expected. The difference() function returns the difference between two values. Is it possible to use similar syntax in Grafana → Metrics → Extended Stats → Script? The following table contains a list of calculations you can perform in Grafana. 5. The data are streamed from InfluxDB every 15 minutes with different timing. Some questions: Are you sure that difference() is the right function for this? I presume you are recording data every minute, hour, etc. I use grafana 10 and influxDB. You can find these calculations in the Transform tab and in the bar gauge, gauge, and stat visualizations. I am using the following: influxdb:1. 2. Dec 27, 2024 · Steps to calculate diffrence: Step 1: Go to grafana and create new dashboard Step 2: Now click on add visualization and add transformation Step 3: Now click on reduce field and add Last *(for first not null values) and difference Step 4: Now click on add another transformation and add partition by values transformation Step 5: Now set field to field Step 6: Now select the concatenate fields Jan 6, 2022 · Hello, How to filter data but only with difference between two consecutive values not bigger than…? I thought about “difference” function but I don’t know how to utilize it in the code. I would like to construct a expression / query to display virtual value of timestamp difference between two one after the other values. The only place I find useful is when creating rules in ruler sometimes you might wish to remove unnecessary labels so they don’t show up in your alert then it becomes useful. And at 1418 for sensor 1 use 36. Not quite sure how to do that, but first, it would be ideal to convert your field value (08:04) to an epoch timestamp. Nov 19, 2021 · Hi Tried to group by my data im getting from mongodb. 6 KB So, I seem to have differences now between each two datapoints in the interval. What did you expect to happen? What I like to have is the SolarIndex = SolarEnergy / ConsumedEnergy over the full selected time range (average). What I would like, is that if one of the sensors doesn’t register on a timestamp, the transformation would use the last value. Want to create another column which is to be a percentage change of the value from a prior lagged value ( one month or 6 months or 12 months). Nov 23, 2018 · In a Grafana dashboard with several datapoints, how can I get the difference between the last value and the previouse one for the same metric? Perhaps the tricky part is that the time between 2 datapoints for the same metric is not know. what you require is the difference value between each array value and this may be done using the influx db DIFFERENCE function. For a given time series query, I would like to display the first and last values on the time window being viewed, then subtract them from each other. 56 KB dawiddebowski October 30, 2024, 11:06am Table view: latest value at 13:51:02 = 7. I wanted to perform some calculation between first and last, here is my method, I have no idea if it is the right way to do. And i want to be alerted when the difference between my last fuel level and the previous level is different of more 10L. Save the configuration and observe the final value displayed in the stat panel. It may also stop returning series with more recent samples if there are staleness markers exist after these samples - see these docs for details. Mar 22, 2015 · Is possible to query only for the last value (or n-th value) of the results of a query? For example, in the query: SELECT value FROM response_times WHERE time > now() - 1h limit 1000; Is poss Sep 24, 2024 · What Grafana version and what operating system are you using? v11. The values are stored in the InfluxDB as shown in the following picture: Now I would Nov 27, 2017 · I have a graph of a metric displayed in grafana. I’m am using a MS SQL database as datastorage. The values come from a different measurement. *The time format used for both Casts is YYYY-MM-DD hh:mm:ss. What did you expect to happen? The Difference should NOT be 0 delta(v range-vector) calculates the difference between the first and last value of each time series element in a range vector v, returning an instant vector with the given deltas and equivalent labels. build 20 epochTime servers Jan 12, 2024 · Hello everyone, I’ve been trying to solve the following problem for days, but I just can’t get it to work. The results from the probe_ssl_last_chain_info metric look like this: {__name__="probe_ssl_last_chain_in Nov 18, 2021 · Hello, I have a graph that counts number of certain log entries in Elasticsearch (like errors). What are you trying to achieve? I’m trying to create a panel in Grafana that calculates the percentage difference in the value of two other panels. 213 1576050424 8268. image 514×270 8. I’m getting the cumulative values displayed correctly in Grafana, but how do I split it to only show difference since last value Oct 24, 2024 · differences(metric: number) Calculates the difference to the last value of a metric over time. SSS Sep 28, 2023 · If I am understanding this it always tell me the last value of the last 2 years. Now, it’s 80 for the last 90 days. Nov 18, 2020 · This is the green one SELECT non_negative_difference(last("value")) FROM "steps" WHERE ("entity_id" = 'oneplus_a600… Hi I have a query, and when I group it by day it gives a different result as when I group it by hour. 215 1576050450 8268. In the case, the value is the number of errors that occurred and I'm basically seeing how many occurred since time specified for V1. 03 in the new fi Jan 18, 2018 · I am using Grafana 4. It seems to me that I have to count the events in Grafana rather than Prometheus since I’m not interesseted in a rate but in the total difference between the last and first counter value in the selected time Jun 15, 2023 · I am plotting a metric on a time series panel inside a Grafana dashboard. Dec 12, 2022 · Hi everyone! What Grafana version and what operating system are you using? Grafana 8. In our case it's necessary to show the state of the service on a Stat panel, and we don't want users to get alarmed by the red colour selecting Last 7 days, which will make Grafana consider alerts since 7 days ago, though they are already resolved. I am trying to setup a graph that will show current day volume, previous 24hours and previous week, so as Oct 6, 2023 · But the problem is that the consumption between first value of the month and last value of the previous month is missing. My goal is to calculate the difference between consecutive data points (i Feb 10, 2017 · Hi, I like to have a Singlestat Grafana panel which shows the diiference between the first() and last() value of a query. 5 (actual value from one hour ago at 12:51:02) What you expected to happen: With the same time stamp, the graph and the table should contain the same values. See answer of Lentil1016 to a similar question. However, I am facing an issue with how the data is being displayed. Apr 8, 2017 · The last() is to get the most recent for the hourly time period (my system logs every 15 seconds, so obviously only want the last value), and difference() is to get the difference between that and the previous value (I’m not sure when difference was introduced however). Elasticsearch. Or I am Feb 14, 2021 · I am not answering directly to the question, however it might help. The delta is extrapolated to cover the full time range as specified in the range vector selector, so that it is possible to get a non-integer Oct 30, 2024 · In Grafana, I tried using both Last and Last*, but they return the same result. so the difference() function is not going to calculate the difference between the first and last unless we define the first and last points of the month (which we can do----see the end of this reply). Now I want to be alerted when the difference between the last value and the previous value is not negative (i. It’s possible to use the now() function with some arithmetic operation in the where clause, but Jul 16, 2024 · Functionally the two queries are the same. Jan 15, 2023 · I need to create two sister charts (ie, not inside this chart) that shows the start and end time of this metric’s time series. Here’s the situation: I’m using the Infinity plugin to fetch data from a device, which sends a value data point every minute. Generally not needed in normal queries. 6: Ver 7. For example, above, the second message prints exactly one second after the first, but Oct 18, 2023 · For this example the metric name is instance:node_cpu_utilisation:rate5m and the time range is Last 5 minutes. All data must be under a single measurement to query it together. To be precise spread calculates the difference between the minimum and maximum values (not first and last) but in an always-increasing series the two are the same. 2 What are you trying to achieve? I’m trying to get a rate for a Totals metric How are you trying to achieve it? Using “Transform data”, “Reduce row” mode, Calculation to “Difference” What happened? The Difference is always 0. the daily yield of 28th February multiplied by the price of 1st January and the daily yield of 1st March multiplied by the price of 1st March. 4) and InfluxDB to visualize some data concerning our heat pump. Influx Query : select Nov 22, 2016 · This is the right answer if you want to consider only the latest value, regardless of the period of time selected by the user. The keep keyword means to keep the labels specified and discard the rest. To be precise, spread calculates the difference between the minimum Sep 10, 2020 · I have grafana setup with influx. Looks like there is similar function in Grafana InfluxDB ( * *SELECT difference(last(value)) FROM <measurement>* *). This query is used in Transform → Config by query result and it will change color of value from query A. The metrics are being collected via Google Cloud Managed Service for Prometheus and accessed in Grafana using Google Cloud Monitoring as the data source. You can’t have a resulting difference if one of the values is unkown! The result should also be NULL. See this answer about the difference. Ver. Specifically I’m using the Prometheus blackbox https_cert module to get the results into Grafana. I managed to get the last value by “reduce fileds” → last, but there is no option for the first value?! Next try was to do the Apr 6, 2021 · About the timing, the wetness sensor gives a value quite constant every 2 hours plus/minus some minutes, the temp sensor when the temp changes, generally more frequent about every 20 minutes. May 2, 2019 · Hello everyone, We are monitoring temperatures through IoT sensor and we are using Graph panel to display them. The time series values are fetched using an Dec 1, 2023 · I’m trying to find a way to send me an alert when the Common Name in a certificate doesn’t match the host that’s being checked. Aug 15, 2024 · What Grafana version and what operating system are you using? Grafana v11. You can do this by creating two tables: one with the first (i. I am wondering if it’s possible to calculate and display directly in Grafana the difference between two temperature/value. 1 on Kubernetes. These functions are often used in time series data to extract the initial or final value in a dataset within a specified time range. May 20, 2022 · You will of course get a time series of computed values. 218 1576050489 8268. May 29, 2023 · So, I have a dataset which has time stamp column and the cumulative value column, what I want to do is calculate the difference of the current cumulative value from the previous one so I can get the actual value and the … Aug 23, 2024 · Please let us know how to use function differences (last_value ())*, existing in ELK Kibana. How to convert it to minutes, seconds please ? Overide in ns displays correct in Dec 13, 2024 · So in your diagram, you are trying to compare the duration between a field value and a time value. It is not clear to me how to do that as using ES the queries contain time range and there are options to display max/min/count etc Dec 10, 2020 · Transform(tab) -> add transformation -> reduce row -> Culculation = Difference. To protocol this I want a Grafana dashboard where the measured values (every 2 hour Feb 27, 2018 · If all you need is just a difference between the current and the previous counter values over the time (essentially, value increment) then just use DIFFERENCE function without any SUM: Oct 12, 2021 · Now I want to display in Grafana the number of info, warnings and errors per Hadoop node/process that occurred in the selected period. The problem is that the difference should be made between two different measures. You will have to switch to raw query mode. If you consider the following data: BUT I want now the difference between the last two values, independently from the specified time. 217 1576050476 8268. What I am trying to achieve is to display the difference between the ShipmentDeclarationSent sum and the CancelOrderSent sum (which should be 0 at that point) using the stat visualization panel like below. Feb 28, 2023 · Welcome @myozone. 91234 seconds The application time is a little bit lower to the time that has passed since the last message was printed. But how can i now link the values so that the values at the time of day are multiplied by the last price? e. The metric I am using to calculate the total Sep 27, 2023 · I’d like to calculate time duration between first and last value of selected period. When I select the measurement, then the field, it defaults to “mean”, see below: I understand the definition of “mean” (as in, “average”) but can someone explain the meaning of this interface field here? 1/ My understanding is that each point plotted on the Mar 28, 2017 · I'm using grafana's singlestat plugin to graph some time series data in an elasticsearch 5 backend. [Grafana v7. I searched a lot from internet but could not find how to compare two dates . 212 1576050411 8268. 03 in the new fi May 22, 2019 · Instead of using the difference reducer function in Grafana (which calculates the difference between first and last value of a field), I am using in the aggregateWindow spread function, which returns the difference between the minimum and maximum values in a specified column. If the subsequent value is less than zero, difference() returns May 9, 2021 · I was really surprised to see that Grafana does not come with features which make that kind of calculation (last value minus second-to-last value) and create a new line with the result. I already tried follow query: SELECT (SELECT Verbruik FROM GalvanoLijnen3 WHERE TimeStamp <= $__timeTo()::timestamp ORDER BY TimeStamp DESC LIMIT 1) - (SELECT Verbruik FROM GalvanoLijnen3 WHERE Apr 16, 2023 · The “value options” Calculate Difference, then gives the difference between the first and the last percentage value. , this case, first sister chart would show 2023-01-15 10:17:00 (as shown in the png below) and the second would show 2023-01-15 10:24:45. Do you guys know if it's possible to calculate 2 points in the same metric? I need to get the most recent point and subtract from the former, and get the difference to show in the graph, it's possible? for example, get this point here, and see the difference with the one before it, and generate a new one with it's value Jul 10, 2024 · What Grafana version and what operating system are you using? v11. Test Data (would love to get the time between these two events but first thing first) servers. This will result in a time series of numbers representing increases / decreases of HDD space usage. Alternately, if last and last - 1 were in the same row, you could perform a binary operation, generating that unique calculation for each row, saved in a new field (column). I’ve figured out that I can use Grafana’s “Time range” tab in the Sep 5, 2021 · above would show values of “A” and “B” and now I want to show the difference between “A” and “B”; how? grant2 September 5, 2021, 4:29pm 2 Dec 11, 2019 · 1576050398 8268. Apr 9, 2022 · The grafana difference function is only the difference between the last and first value in the array. May 24, 2023 · Yes, my understanding is that query #1 gives a single value (it’s the difference between the first and last value of the selected time period) and query #2 gives a single value (it’s the number of days in the selected time period). Cast the fields back to string to display the fractions of the seconds. How should be expression/query builded please ? Like ? select ELAPSED(“value”) FROM “GasSum” displays dif in nanoseconds. 6. for example I have such data: 02-01-25_08-01-26: 0. X: No connection details for Influx 1. 0 (I can’t find Time of last point) Jan 22, 2023 · query B: calculates difference between data points. image 801×274 35. Is there a method to do this in Grafana/InfluxDB? Dec 16, 2022 · Hi @matulekpl. 214 1576050437 8268. Nov 28, 2023 · In our SELECT clause, we are using two functions: difference() and last(). 0. 3 with Prometheus 2. So when rate of consumption is (change in kilowatt hours Jan 8, 2020 · This is one of the main reason to distinguish between gauge and counters. Currently, there is no way to perform cross-measurement math or grouping. Apr 29, 2020 · Hello, I have a graph showing 2 temperatures. 0 on a raspberry debian bookworm Maybe this is too simple to see a straightforward solution: I would like to display the balance (last - first value) of a battery soc in a certain time range. keyword. The print screen Nov 29, 2023 · When only one registers a value, no translation value is calculated/plotted. ruthk February 3, 2022, 11:03am 1. For example, the following query returns non-empty result (aka alert) when the metric foo increased by more than 60 during the last minute (see [1m] in square brackets): Jun 27, 2020 · It appears that Grafana does not work with Flux yet for Influx 1. 216 1576050463 8268. This though is not precise. 30. In the menu I can only select Difference and get the total difference but cannot select difference percent. Dec 29, 2022 · How do I get the difference between the first and last vaules between a time range? the last value (34. I would like to get the difference between the last two values and make a graph in grafana. 21-0. Jul 25, 2019 · I'm tracking the performance of a wireless network and need to protocol when it is better or worse than expected. I created 2 queries, the difference being elapsed < 259200 and elapsed > 259200, where elapsed = ‘{{ sub (unixEpoch now) (unixEpoch timestamp) }}’ Now, I want to keep all occurences of values for label XYZ that appear in the first query but are not appearing in the second one. The next day it starts again at 0. Use first() or last() with aggregateWindow() Use first() and last() with aggregateWindow() to select the first or last records in time-based groups. 21: 01-01-25_16-00-01: 0. Apr 5, 2023 · Thanks, the first version is almost what I am looking for, with the difference, that I don’t watn to display the value from jan,1st. Dec 5, 2024 · Hi everyone, I hope you’re doing well. 797-0400:: Application time 1. 4 I’m trying to get a graph that would display my heat pump power consumption per hour or day or week or month I get cumulative kWh readings every minute from a Gavazzi sensor through modbus and nodered that are being fed into my influxdb database. Oct 2, 2024 · If you are using InfluxQL, see this:. 219 It represents the total of electric power consumption from my smart meter. Important: the time that it is added to the database can slightly differ one day to Aug 13, 2022 · No the last time the metric was pushed was 2 day ago, so ideally it should return the difference in hours but it’s returning some weird number. I only want to display the value of today and the difference between today and jan. For instance. Feb 3, 2022 · Grafana. I want to find the difference between the last value received by SNMP on Grafana and the previous value and find out how many mbit/s of traffic per Nov 21, 2017 · I am working with influxDB and wanted to plot the difference between now() and the last timestamp of my measurement on a status panel in Grafana. 797-0400:: Application time 0. Apr 20, 2021 · Hi ! I would like to know: Is it possible in grafana to create an alert between the last value and the previous value of a query? How to configure grafana alert that can do it? For my project, i will monitoring the fuel level of a tank. If difference is equal to 0 value of B query is mapped to green color (HEX #3dd961) and if difference is not equal to 0 value of B query is mapped red color (HEX #fc1c5b). i try several querys without success , any idea ? thanks Aug 18, 2022 · Hi, I want to calculate the difference between the current time and the time of the last non-zero value from a Prometheus counter metric. aggregateWindow() segments data into windows of time, aggregates data in each window into a single point using aggregate or selector functions, and then removes the time-based segmentation. 18 == 0. How to reproduce it (as minimally and precisely as possible): add MySQL Datasource with +00:00 timezone May 29, 2019 · Hello I want to create an alert at Grafana which finds out the difference of messages between today and last week ? From 1h to Now I have alert When : sum() OF query(A,1h,now) IS BELOW 1 I want to get the calculate the difference between last ween and now and create an alert if it’s BELOW 1. So, I suppose, the best calculation should be between the first value of the hour and the first value of the next hour. Apr 10, 2023 · If you want to find for each window the difference between the first and last values you can use the spread function. How can I make the time series show the delta for the chosen timeframe - the difference between the first and last value in the dashboard interval, starting from 0? I did not find anything helpful in the "Transform" tab or the "Visual mapping" part inside the panel settings. Graph view: latest value at 13:51:04 = -1. anhrvvytq wsgxmm mqxcnc romqh lga xqgk dgvydua gkspeb jptitq vfqjj hrp pyibez xpvpa hjo tyyvmjs