Prometheus count by label example. What I ultimately want is a list of all available metrics.

Prometheus count by label example. Apr 1, 2022 · There are more details about the label pairs etc. * but not group by. Keeping only selected labels: Sometimes, you may have multiple labels on a metric, but only a subset of those labels is required for analysis. # By default, Prometheus stores its database in . totalCounter. The following is the expected outcome {status="400"} 1 {status="0"} 0 {status="200"} 2 Count and sum of observations. path). What I ultimately want is a list of all available metrics. You can use a regex query: my_metric{group=~"misc group. 2. Side note 2: Values are always floating-point numbers; timestamps are integers storing the number of milliseconds since the Unix epoch. Eg: Find the average response time Feb 26, 2019 · This modifier limits the set of labels, which is used for finding time series pairs on the left and the right side of / with identical label values. The general way to provide access to labeled dimension of a metric is via a labels() method that takes either a list of the label values or a map from label name to label value and returns a "Child". For instance, the following query would return week-old data for all the time series with node_network_receive_bytes_total name: node_network_receive_bytes_total offset 7d. 11 value stored in the index label and In Prometheus terms, an endpoint you can scrape is called an instance, usually corresponding to a single process. all independent metrics that match the regex above will show as a separate metric not all as Jun 27, 2018 · The by modifier groups aggregate function results by labels enumerated inside by(). labels(labels)); Mar 11, 2018 · It is possible to use label_replace() function in order to extract the needed parts of the label into a separate label and then group by this label when summing the results. Jun 28, 2021 · min, max, avg, sum, stddev, stdvar over time. By: Gedalyah Reback. There are a few to bear in mind. I think some people must have encountered the same problem with the “go_info” metric. Then the second one is for prometheus. In Grafana 7, Prometheus metrics can be transformed from time series format to table format using the Transform module, so that you can sort the metrics by any label or value. Note that the time series now have two identical labels - label_a and label_b. node_namespace_pod_container:container_cpu_usage_seconds_total:sum_irate{namespace='my-namespace'} * on(pod) group_left(label_application) Your locally running Prometheus instance needs to be properly configured in order to access Node Exporter metrics. label_replace(. PromQL supports the ability to join two metrics together: You can append a label set from one metric and append it to another at query time. inc() / . Jun 30, 2023 · I would like to retrieve a single record to use the last “version” label. Each individual data point (each line in text format) is identified by the unique combination of its metric name and its label name/value pairs. by does the opposite and drops labels that are not listed in the by clause, even if their label values are identical between all elements of the vector. Without a solid understanding of the matching rules, I constantly stumbled upon various query execution errors, such as complaints about missing group_left or group_right modifier. Jul 18, 2017 · 16. Oct 12, 2023 · The rate () function in PromQL is essential for calculating the per-second average rate of change of a metric over time. See label_replace () docs. Thanks, Rémy Dec 29, 2023 · 3. Sep 30, 2020 · Prometheus provides the following ways to divide time series with labels by time series without labels: By wrapping the time series without labels into scalar() function: Apr 26, 2020 · I don't have a way to get the total tasks count, so that's all the data that I have, I want to calculate the percentage of the tasks by their status label and create a graph of this value using Grafana. labels(labels), collectors. PromQL uses three data types: scalars, range vectors, and instant vectors. 2. What are you trying to achieve? I’m collecting metrics about log files with filestat_exporter, and i would like to have graphic with the count of rotated logs per day based on values of the label path. #1. e. You can add any labels you need after the by section (that's helpful in altering for example). answered Jul 18, 2017 at 2:57. Sep 26, 2021 · PromQL allows querying historical data and combining / comparing it to the current data. If you need the expected results from the increase() function, then try VictoriaMetrics instead - this is Prometheus-like monitoring system I work on. io:9093". To start Prometheus with your newly created configuration file, change to the directory containing the Prometheus binary and run: # Start Prometheus. To workaround this, add an extra label to the "memory_usage_value" metric, using the "label_replace" function, like the following: Apr 8, 2020 · Check out my example on play. Count_values() gives the number of elements within a time series that have a specified value. Here's an example: - source_labels: [keep_label_1, keep_label_2 Mar 27, 2020 · Your goal is to simply replace the old label name “old_job_id” with a new label name “new_task_id”. The following prometheus. For instance, avg_over_time() is what you may use to compute a moving average of some metric. The without modifier groups aggregate function results by all the labels except those enumerated inside without(). tsdb. ConsumerEndpointFactoryBean. data="eth0" can have multiple value, use the following command: sum (rate (sum_over_time{data="eth0",direction="sum",job="eth0"}[20m])) by (data) answered Apr 27, 2019 at 6:38. Then to prevent the main() function from exiting, we can use a select statement that blocks until our goroutines are running. It is recommended to initialize the label values by calling the . on that endpoint, but for the scope of this article, we’ll focus on the top 10 series count by metric name. Here are my metrics. 5 for: 10m labels: severity: page annotations: summary: High request latency The optional for clause causes Prometheus to wait for a certain duration between first encountering a new expression output vector element and counting Mar 21, 2022 · Prometheus labels. 2 - The idea is to create another client to expose metrics for Prometheus, so we will interface with two implementations (datadog and prometheus) and save in both places at this first time, but as you said above the prometheus lib enforces to use always the same number of labels. Grafana lists these variables in dropdown select boxes at the top of the dashboard to help you change the data displayed in your dashboard. count(count by (a)(some_instant_vector)) Suppose the query result above looks something like this: In this case, I'd like to get Thu, 08 Feb 2024 00:12:11 GMT and Thu, 08 Feb 2024 01:09:46 GMT as the result. See example below. The join is usually performed via on Apr 20, 2022 · Note that the increase() function in Prometheus may return unexpected results when applied to slow-changing counters. Count() simply gives the total number of elements. Then Prometheus applies the / operation individually per each such pair. An Intro to PromQL: Basic Concepts & Examples. To change values of the labels you can use same function as to renaming labels: label_replace. Jan 27, 2020 · The following query should return the number of unique username label values encountered during the last 24 hours for the given labels app="my-app" and path="/login": count( group( last_over_time(app_request_count{app="my-app", path="/login"}[24h]) ) by (username) ) See full list on prometheus. , a time series in Prometheus is defined by a combination of a metric name and a particular set of key-value labels. The unless on (label_a) instructs returning series from step 1 Jun 15, 2017 · Is there a way to do a group by query on Prometheus database like there’s for Graphite databases? Replace http with your custom multiplexer. For example: - source_labels: [unwanted_label] action: drop. Jan 28, 2020 · 1. Begin by logging in to your Grafana Cloud organization and navigating to the Cloud Portal. Using the data sources dropdown, select the data source corresponding to your Cloud Prometheus metrics endpoint. expr: count(api_response_latency_ms{labelone="xyz", labeltwo="abc"} > 100) labels: reference_label: xyzabc123. In this case you need to add the following relabeling rules into metric_relabel_configs section at the corresponding scrape_config: metric_relabel_configs: - source_labels: [__name__, name] regex: "node_systemd_unit_state;(. /prometheus --config. Just filter for the values you want before applying count_values: count_values("bag_status", bag_status < 1) answered Feb 22, 2019 at 9:28. e. Aggregations. The issues mentioned above are solved in VictoriaMetrics - Prometheus-like monitoring system I work on. Feb 5, 2020 · Here, I have kube state metrics info in prometheus for kube_pod_info & kube_pod_labels. Prometheus is configured via command-line flags and a configuration file. From there, click Log In on your Grafana instance. Please ensure all examples are submitted in the same format, we'd like to keep this nice and easy to read and maintain. Scalar : The expressions resulting in a single constant numeric floating number is scalar. Aug 15, 2018 · avg_over_time (metrics [interval]) = averages value per label. The naming makes the purpose of these functions quite obvious. Mar 15, 2019 · And Prometheus assumes that items in a bucket spread evenly in a linear pattern. jksdjkfs-2f16-11e7-3454-005056bf2fbf. It is currently unused in Prometheus. For example, the following query would filter out time series with Select the data source. For example, we could count the number of binaries running each build version with the query: Dec 22, 2017 · In this first post, we went through the main building blocks of Prometheus: metrics, labels and basic operators to query these metrics. Spin up the first goroutine for the main server and the second one for the prometheus metrics endpoint. My use case was to see the current running pods in some namespace and below is my solution: Oct 23, 2020 · This can be done with label_value () function from MetricsQL: count by (deployTime, foo) (. (starting with a small letter). ALERTS{alertname="CPUThrottlingHigh",pod="sendsms-ebed"} 20. without removes the listed labels from the result vector, while all other labels are preserved the output. Via PromQL query: If you’re more fond of PromQL to get things done, the above result can also be achieved by running the PromQL query : MetricsQL removes all the NaN values from the output, so some queries like (-1)^0. label_replace: This function allows you to replace or modify labels of a time series. With count by (no, type) it doesn't show the correct value, and I have some other metrics that I don't want to goup by but I want to monitor. Prometheus label_replace will really “add” the new label name. yml. While the command-line flags configure immutable system parameters (such as storage locations, amount of data to keep on disk and in memory, etc. They track the number of observations and the sum of the observed values, allowing you to calculate the average of the observed values. If the metric can have either 0 or 1 values, then the sum_over_time(metric[d]) calculates the number of 1 values on the specified lookbehind window d. Jun 13, 2021 · For example, when I needed to match multiple metrics using the common labels, I quickly found myself reading the code implementing binary operations on vectors. For example, an API server job with four replicated instances: job: api-server. Other Prometheus-like systems may provide additional functionality for /api/v1/status/tsdb Nov 7, 2018 · count(up{job="prometheus"} offset 1h) by (project) unless count(up{job="prometheus"} ) by (project) If the metric is missing in the last 1 hour, it will trigger an alert. For example, you can combine metrics from different instances into a single representation. For example, suppose process_resident_memory_bytes metric exists with job, instance and datacenter labels: Oct 5, 2018 · I would like to know the number of created jobs in Kubernetes based on a specific label. /data (flag --storage. For example, the following query extracts the project. See these docs for details. To filter the pod CPU usage further based on a specific pod label like application=my-app, you need to use the kube_pod_labels metric to filter by the desired label. Managing High Cardinality. Grafana refers to such variables as template variables. ) MetricsQL also supports now () function, which can simplify calculations for timestamp relative to the current time. yml example configuration file will tell the Prometheus instance to scrape, and how frequently, from the Node Exporter via localhost:9100: global: scrape_interval: 15s scrape_configs: - job_name: node Jun 25, 2022 · Sometimes sends the Reason tag and sometimes not. 4. The examples may contain some metric names and labels that aren't present on your system, if you're looking to re-use these then make sure validate the labels and metric names match your system. This can be useful in Prometheus rule evaluations, since it lets you generate a new metric for a series by appending labels from another info metric. labels() method alone: from prometheus_client import Counter. Let’s understand one by one with examples. Labels are sets of key-value pairs that allow us to characterize and organize what’s actually being measured in a Prometheus metric. Histograms and summaries both sample observations, typically request durations or response sizes. Relabeling can help aggregate or summarize metrics from multiple sources into one metric. PromQL, short for Prometheus Querying Language, is the main way to query metrics within Prometheus. Aug 4, 2021 · For example: groups: - name: slo_metric. 03. PromQL has two operators for counting up elements in a time series. +"} That will give you everything where group starts with "misc group". In such cases, you can keep only the necessary labels and drop the rest. it executes label_copy(metric_1{instance="abc"}, "host", "domain"). This is because of extrapolation - see this issue for details. I wonder if there is a way to craft a Prometheus query to refine this global search. You could also aggregate the metric in the May 10, 2023 · The example is very simple, Prometheus query to count unique labels over a timeframe. Like summary metrics, histogram metrics are used to track the size of events, usually how long they take, via their observe method. 4. Note that Grafana doesn’t draw any lines or dots for NaN values, so the end result looks the same for both VictoriaMetrics and Prometheus. This library allows you to instrument your code with custom metrics and provides some built-in metric collection integrations for ASP. In this example, Prometheus will receive values of 1, 3, and 7 for my_metric_total with the same time stamp and will drop 2 of the data points. For example, sum_over_time(up[1h]) returns the number of up samples with 1 value during the last hour. Test these options and tell if they solve your issue. Explaining the problem with an example: ALERTS{alertname="CPUThrottlingHigh",pod="sendsms-dbed"} 10. label_value(my_metric{foo=~""}, "deployTime") > 1603284799. Dec 4, 2018 · If you want to see only the number of "deployed" pods in some namespace, you can use the solutions in previous answers. observe() etc. Instead of hard-coding details such as server, application, and sensor names in metric queries, you can use variables. Nov 8, 2021 · The count(is_active) by (label_b) counts is_active series grouped by label_b. In the example above, I would like to get the version “21. For example, the following query returns the exact number of samples with the value 10 over the last hour for time series m: count_eq_over_time(m[1h], 10) Include any label sets from the left side that are not present in the right side: node_network_mtu_bytes unless (node_network_address_assign_type == 1) Aug 4, 2021 · Joins in PromQL. However, your labels aren’t the same, therefore you need to decide which labels are going to be considered. Then it finds unique domain label values for the returned time series and passes an additional label filter on the domain label to the left part of the a and b query. The usual . g, 11. Nov 8, 2018 · 4. For example, count(my_metric) by (app) will return unique app label names for time series with my_metric name. *):. Corollary: measurements that are discrete values (and I think code is a smell here) should be label values. Range vectors have a time dimension, while instant vectors represent the Nov 11, 2020 · I am looking for a way to count the unique label values and show each unique label count for each customer name. I need to get the count as apple=1, orange=1. How can I group these by value and return a count. dec() / . In December 2023, prometheus v2. Oct 11, 2017 · P. This is roughly equivalent to the following SQL with DISTINCT clause: Here are the main label functions in Prometheus: 1. Since there are gaps between certain intervals I would like to do a count over time. Oliver. Apr 27, 2019 · If you want to sum it based on a field uniquely e. By mastering the basics covered in this cheat sheet, you'll be well-equipped to explore and analyze your monitoring data effectively. io This example will return timeseries with the values a:c at label service and a at label foo: label_replace(up{job="api-server",service="a:c"}, "foo", "$1", "service", "(. Note that the number of observations (showing up in Prometheus as a time series Nov 15, 2022 · To get the count of unique labels / values for each label technically you can use this metric (Prometheus creates a different time-series for every metric-label-value combination): # HELP prometheus_tsdb_head_series_created_total Total number of series created in the head # TYPE prometheus_tsdb_head_series_created_total counter prometheus_tsdb Aug 10, 2020 · That is first you aggregate away any other labels that don't matter with the inner aggregation (here just the mode label), and then count the resulting series with the outer aggregation. The few examples of metrics represented different types of data, such as counting the number of requests served or the amount of memory used at a given time. You could go about it the other way around. Alin Sînpălean. How can I join kube_pod_info & kube_pod_labels to apply label filter Mar 16, 2021 · Count those metrics. robustperception. For your example query will look like this. Here are just a few examples of these types of debug queries, sorted by largest count first: Number of series per metric name: Jul 24, 2021 · I. Mar 2, 2023 · In the /tsdb-status page of prometheus server there is the "Top 10 series count by label value pairs" table which I find very helpful to track useless label/value tuples present at large scale. Source: Prometheus Alert for missing metrics and labels Jan 7, 2020 · This is the expected behavior when using a binary operator: both side must have a matching label set to be taken into account. Remember, this blog post only scratches the surface. instance 1: 1. Jun 12, 2020 · How do I configure prometheus (currently using the coreos operator if that matters), to keep only app=foo and drop the label baz, so that I end up with: some_metric{app="foo"} For what it's worth, here's what I currently have and the labels are showing up as is: - action: keep sourceLabels: ["app"] regex: "foo" - action: labeldrop regex: "baz" Sep 30, 2019 · A histogram is a combination of various counters. Every such time series is stored separately on the Prometheus node in the form of an Jan 9, 2022 · If you still need this functionality, then take a look at count_eq_over_time() function provided by VictoriaMetrics - this is Prometheus-like monitoring solution I work on. I suspect that your metric is an anti-pattern and, rather than try to force Prometheus into this somewhat unnatural behavior, you should reconsider the metric (if possible). From the Grafana UI, click Explore in the left-side menu. handler. kube_pod_info{namespace="test"}---> Filters pods by namespace test. label_join: With this function, you can concatenate label Jun 9, 2017 · It is a good practice in Prometheus ecosystem to expose additional labels, which can be joined to multiple metrics, via a separate info -like metric as explained in this article. Prometheus ships with the Kubernetes auto-discover plugin named kubernetes_sd_configs that we use in the second job definition. The example shows a counter metric named payments_total with two labels: status and type. But when i want to do this for over 10 minutes data, it cannot work as label_replace only works on instant vector. The reason for the recording rule above is that the customer wanted to add the reference_label to the aggregated version of the metric. Jan 17, 2019 · Prometheus allows renaming labels in the following places: During metric scrape. For example, consul_service_tags metric exposes a set of tags, which can be joined to metrics via (service_name, node) labels. 99. Apr 14, 2023 · Using the following prom query. Just add offset to the query. 4:5670 Metrics with labels are not initialized when declared, because the client can’t know what values the label can have. 49 finally added sort_by_label() and sort_by_label_desc() groups: - name: example rules: - alert: HighRequestLatency expr: job:request_latency_seconds:mean5m{job="myjob"} > 0. channel. S. Jun 9, 2022 · Prometheus will list only the elements of the "memory_usage_value" metric which do not have matching label sets in the "cpu_usage_value" one. May 7, 2020 · 5. c = Counter('my_requests_total', 'HTTP Failures', ['method', 'endpoint']) Feb 22, 2019 · 3. You can drop specific labels using relabeling to reduce clutter and simplify metric sets. For example, the following MetricsQL query returns the exact number of raw samples with values greater than 0 over the last 5 minutes: count_gt_over_time(metric[5m], 0) Nov 8, 2018 · It will return unique label values for the given label alongside the number of unique time series per each label value. It takes four arguments: the input vector, the target label name, a regular expression to match the source label value, and a replacement string. . It will preserve the my_metric{label="a"} 1 my_metric{label="b"} 6 my_metric{label="total"} 7. String: The expressions whose output is a string literal is a part of this category. Rate will be per second, so if you sum up all rate per seconds data points over a given interval you will get the increase over a given time range: sum by (label) (rate (my_metrics {label="label1"} [time range])) Edit: (delta and some concrete time slot) It seems as if the delta function is an easier way to achieve this Aug 25, 2021 · Is there a shorter/neater way for replacing labels? in my example, I have 4 cases where I would like to "skip" the ending, when the end of the label value is:. Mar 22, 2021 · VictoriaMetrics starts from the right part of the a and b query, e. Step 1 : Used following query to get all metric names, query succeeded with all metric names. methods can then be called on the Child. avg ( avg_over_time (metric [scrape interval]) ) won't be same as (when the data is not continuous and denominator value is different) avg (metric) !!!! Given a scenario, what will be the possible way to find the overall average over a time period. Jan 4, 2022 · PromQL uses four data types. The metric value for the 200th item in bucket=500ms is 400ms = 300+(500-300)*(200/400) That is, 95% is 400ms. NET Core. Sep 20, 2023 · 0. Feb 17, 2019 · Fortunately, Prometheus auto-discover features can address this problem. If you want to be able to aggregate both side and get the single one, you first must get the union of different metrics using the __name__ label: Mar 6, 2018 · A portion from a query listing all metrics for an app (i. 3. Here, I want to include filter based on labels as well. PromQL is a versatile and powerful query language that empowers users to extract valuable insights from Prometheus metrics. May 20, 2022 · Combine sum with rate. 5 return empty results in VictoriaMetrics, while returning a series of NaN values in Prometheus. g. sample-y. In my case it works, because I’ve used labels that are exactly same job="alertmanager", instance="demo. The former breaks for people who do a sum() over your metric, and the latter breaks sum and is quite difficult to work with. Some client libraries, for example Go, will actively try to stop you doing Oct 16, 2020 · According to this Issue, Grafana supports sorting by value when displaying legend. The label_replace() copies the label_a value to label_b for all the series returned at step 2. 1. How the percentage should be calculated? What I've tried so far: Get the percentage of all successful tasks: In this guide, you created two sample Go applications that expose metrics to Prometheus---one that exposes only the default Go metrics and one that also exposes a custom Prometheus counter---and configured a Prometheus instance to scrape metrics from those applications. It provides count_gt_over_time() function, which ideally fits this case. {app="bar"}) : I have also tried to use wildcard in the metric name, prometheus is complaining about that. I have a label called "label_source=“k8s" in kube_pod_labels. Prometheus should start up. 4k 2 36 43. Channel. Where they differ is their handling of quantiles. +)" Dec 10, 2021 · We want to get all metric names from Prometheus server filtered by a particular label. With count and sum I can't see those metrics. *") This second example has the same effect than the first example, and illustrates use of named capturing groups: label_replace(up{job="api-server",service="a:c"}, "foo Nov 6, 2023 · Filtering & Dropping. For example, when measuring HTTP latency, we might use labels to record the HTTP method and status returned, which endpoint was called, and which server was responsible for the request. ), the configuration file defines everything related to scraping jobs and their instances, as well as which rule files to load For example, this expression returns the unused memory in MiB for every instance (on a fictional cluster scheduler exposing these metrics about the instances it runs): (instance_memory_limit_bytes - instance_memory_usage_bytes) / 1024 / 1024. Best practices and usage. Metric should be COUNTER in nature for histogram metric type; Series for quantile calculation should always get label le Prometheus template variables. errorCounter. PromQL uses two types of arguments - range and instant vectors. The avg_over_time function expects a range vector, which means that you could (if I understood correctly) use subquery like: avg_over_time(K_utilization[1h:5m]) This will look at the K_utilization metric for the last 1h at a 5m resolution, the result should contain all labels from the metric. grafana (probably not the best example, but you get the point) . It also exposes other useful stats, which may help determining the source of high cardinality: P. (e. Mar 28, 2023 · What Grafana version and what operating system are you using? Grafana v9. However, there is always a caveat. . Similarly, stddev_over_time() can be used to produce a moving standard deviation. Measurements (counters, gauges) etc. The documentation here is only a minimal quick start. 9,134 1 27 29. Mar 21, 2020 · I am able to do use label_replace () to do this on the instant vector. Dec 17, 2020 · To get a feeling where "all those series" are coming from, you can write PromQL queries to count how many series there are for a given job, instance (target), metric name, or other type of dimensional grouping. Jan 24, 2024 · 1. For it to change value of the label you need to pass same name into destination and target labels. or this: my_metric{label="a"} 1 my_metric{label="b"} 6 my_metric{} 7. Oct 20, 2022 · However, in the second example, you can see how dropping the ip label will create duplicate time series, which Prometheus will drop. 2018. You can display an expression’s return either as a graph or export it using the HTTP API. (This is from Prometheus Blackbox Exporter). file=prometheus. DevScript. I can output the result in a grafana table and using Override “Field with name → Standard options > unit → From now”, I have in the table, each raw have the resource name and when it was created (4 months ago, 3 months ago,2 months ago Aug 31, 2022 · I have a metric that returns a few unique values for each timeseries. There's usually also the exact utilities to make it easy to time things as there are for summarys. The thing is though that the inner aggregation doesn't have to be count . Prometheus target missing with warmup time Allow a job time to start up (10 minutes) before alerting that it's down. It's commonly used for monitoring trends, such as server request rates and CPU usage. The same expression, but summed by application, could be written like this: Mar 19, 2019 · A Prometheus metric can be as simple as: http_requests 2 Code language: Perl (perl) Or, including all the mentioned components: http_requests_total{method= "post" ,code= "400" } 3 1395066363000 Code language: Perl (perl) Metric output is typically preceded with # HELP and # TYPE metadata lines. Prometheus provides /api/v1/status/tsdb endpoint, which exposes metric names with the highest number of labels inside seriesCountByMetricName stats. The number of 0 values then can be calculates as count_over_time(up[1h]) - sum_over_time Feb 6, 2020 · 14. The following is what I came up with. Under query options, I have set Format to Table, and Type to Instant. sample-y from project. How can rate() function average request duration? 5. See Unwrap examples for query examples that use the unwrap expression. Maybe you want "count by (no, type)" or just "count by (type)". Looking at the metrics, I can see that some of them have dynamic names, most probably delivered by dropwizard metrics. 3” to display it in a Grafana Dashboard. You can try like this if it works: sum(. This will match all that is misc group. 12. 6. A collection of instances with the same purpose, a process replicated for scalability or reliability for example, is called a job. collectors. should be continuous. For detailed guidance on using Prometheus in your solutions, refer to the prometheus-users discussion group. (starting with capital). me ny lb al gf ig hg pu dq ge