Prometheus labels example

Prometheus labels example. Gauge. Grafana lists these variables in dropdown select boxes at the top of the dashboard to help you change the data displayed in your dashboard. g. Explaining the problem with an example: ALERTS{alertname="CPUThrottlingHigh",pod="sendsms-dbed"} 10. For example, metric{job="aa"} will be converted to metric{job="aa",foo="bar"}. Configure Prometheus or PrometheusAgent to select ScrapeConfigs #. Both the Prometheus and PrometheusAgent CRD have a scrapeConfigSelector field. There is a label in common between the two metrics “node_meta” and “node_disk_bytes_read”: instance. Since its inception in 2012, many companies and organizations have adopted Prometheus, and the project has a very active developer and user community. 4:5670 Jul 22, 2016 · Go to the "Queries" tab: Enter the name (here db2_prometheus_adapter_info) of the metric. 1. in hostname label name: - action: replace_all. Grafana refers to such variables as template variables. Here's an example: - source_labels: [keep_label_1, keep_label_2 Feb 6, 2020 · 15. If the descriptor has one variable label, the expvar value must be an expvar map. +' TLS based scraping If you have a Prometheus instance served with TLS and you want to scrape metrics from it, you need to set scheme to https and set the TLS settings in your configmap or respective CRD. This field needs to be set to a list of labels to match ScrapeConfigs: spec: scrapeConfigSelector: matchLabels: prometheus: system-monitoring-prometheus. instance 1: 1. The name of that label is given by the aggregation parameter, and the label value is the unique sample value. Oct 25, 2018 · Prometheus simply scrapes the metrics from KSM - this way Prometheus doesn't need to scrape the individual pods. For it to change value of the label you need to pass same name into destination and target labels. 12, and 1000000. 0 is expected to enforce normalization of these label values. That means your service always returns to Prometheus the current value of whatever it is you’re measuring. source_labels: [hostname] target_label: hostname. How can I join kube_pod_info & kube_pod_labels to apply label filter Jan 28, 2019 · Introduction. // Remember, there are default values for each item if it's missing. Package prometheus is the core instrumentation package. Example of Scrape Configuration: scrape_configs: - job_name: 'prometheus'. it executes label_copy(metric_1{instance="abc"}, "host", "domain"). The sample value is set to 1 as long as the alert is in the indicated active (pending or firing) state, and the series is marked stale when this is no longer the case. Instead of hard-coding details such as server, application, and sensor names in metric queries, you can use variables. As the title suggests, a subquery is a part of a query, and allows you to do a range query within a query, which was not possible before. Prometheus's main features are: Examples at hotexamples. For example, a label method="GET" could be attached to the http_requests_total metric to track the number of GET requests specifically. Mar 8, 2018 · Micrometer's tags are the same as Prometheus' keys/labels. By using the `labels` method, multiple instances of the same You signed in with another tab or window. Channel. expr: <string>. Some example methods are like CurryWith(). Gauge is a metric type in Prometheus that represents a single numerical value that can arbitrarily go up or down. Using a standard prometheus config to scrape two targets: ip-192-168-64-29. . Prometheus collects and stores its metrics as time series data, i. springframework. evaluation_interval: 15s # Evaluate rules every 15 seconds. For example, an API server job with four replicated instances: job: api-server. Determining what and when you should be alerted can be a practiced combination of understanding your systems’ KPIs and relying on your own experience and instinct. Mar 22, 2021 · VictoriaMetrics starts from the right part of the a and b query, e. Throughout this blog series, we will be learning the basics of Prometheus and how Prometheus fits within a service-oriented architecture. Joins in PromQL 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. #1. Keeping only selected labels: Sometimes, you may have multiple labels on a metric, but only a subset of those labels is required for analysis. 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. Note on the "Instant" setting: This setting switches from a May 30, 2022 · This is a quick demonstration on how to use prometheus relabel configs, when you have scenarios for when example, you want to use a part of your hostname and assign it to a prometheus label. +)" Prometheus is configured via command-line flags and a configuration file. register(registry); 4. 0 allows you to specify multiple SRV records to be queried in a single scrape configuration, and also provides service-discovery-specific meta information that is helpful during the relabeling phase. For example, # multiple alerts coming in for cluster=A and alertname=LatencyHigh would # be batched into a single group. Feb 15, 2024 · labels: It includes additional metadata attached to the alert, such as severity, service, or instance. Activate the "instant" option. help(helpMsg). Labels Every series MAY include a "job" and/or "instance" label, as these are typically added by service discovery in the Sender. Here, I want to include filter based on labels as well. Aug 28, 2020 · then you will only have label_foo available. - job_name: "prometheus" static_configs: - targets: ["localhost:9090"] # Create a job for Docker daemon. Code. Sub-packages allow to expose the registered metrics via HTTP (package promhttp) or push them to a Pushgateway (package push). handler. Feb 23, 2023 · The same principle can be applied to any Prometheus metrics, any labels! Next steps. # # To aggregate by all possible labels use '' as the sole label name. You switched accounts on another tab or window. Thanks! Apr 13, 2021 · From Prometheus side, metrics can be distinguished by their label and saved separately, although the more you get the worse scrape performance you will have if that matters for you. GaugeVec Initialized bool } func newCustomMetrics () (m *customMetrics) { m = &customMetrics { customMetricsOne Relabel Prometheus metrics to reduce usage. Default is every 1 minute. The keys in the expvar map become the various values of the one Prometheus This works for single API server deployments as # well as HA API server deployments. (starting with a small letter). Topics. QUESTION? How to query prometheus to have sum of “disk bytes read” by instance/node/server Assuming that the http_requests_total time series all have the labels job (fanout by job name) and instance (fanout by instance of the job), we might want to sum over the rate of all instances, so we get fewer output time series, but still preserve the job dimension: #1. Annotations help provide more context to the alerting system and facilitate better Jan 16, 2018 · Histogram and labels working example:-import io. With this example, all ScrapeConfig having the Prometheus Configuration. Prometheus supports templating in the annotations and labels of alerts, as well as in served console pages. ) and you'll see the labels available. Labels are what make Prometheus data a multi-dimensional time series data model. 👉. annotations: It contains descriptive information about the alert, such as a summary or description. ConsumerEndpointFactoryBean. kube_pod_info{namespace="test"}---> Filters pods by namespace test. Prometheus Relabling. replacement: ". Enter the label name as the legend using the {{[LABEL]}} notation (here {{app_state}} ). Each float sample must have a label le where the label value denotes the inclusive upper bound of the bucket. my_metric{label="a"} 1 my_metric{label="b"} 6 my_metric{label="total"} 7. For example, consul_service_tags metric exposes a set of tags, which can be joined to metrics via (service_name, node) labels. Use cases: Drop unnecessary Jun 27, 2017 · This post explains how you can use Prometheus relabeling configuration to manipulate metrics to keep your storage clean and not pollute it with unnecessary data. This will cut your active series count in half. # This effectively disables aggregation entirely, passing through all # alerts as-is. 7. I have a label called "label_source=“k8s" in kube_pod_labels. 9. Existing label can be updated with the relabeling rule mentioned above: The behavior of this function when dealing with native histograms may change in future versions of Prometheus. You could also aggregate the metric in the Feb 5, 2020 · Here, I have kube state metrics info in prometheus for kube_pod_info & kube_pod_labels. 2. Compared to Prometheus' requirement to register the metric as a static variable, Micrometer allows avoiding that. 3. While the command-line flags configure immutable system parameters (such as storage locations, amount of data to keep on disk and in memory, etc. Fix references to integer le, quantile label values, but otherwise do nothing and accept that some queries that span the transition time will produce inaccurate or unexpected results. label_value can be any sequence of UTF-8 characters, but the backslash (\), double-quote ("), and line feed () characters have to be escaped as \\, \", and , respectively. In this example, we displayed label values quite simply in a table. scrape_timeout: 10s. # Name of the alert to be tested. . To scrape the metrics with a Prometheus server, download the latest Prometheus server release, and configure the prometheus. These are not mandatory. Feb 8, 2024 · Relabelling allows users to modify or filter labels associated with scraped metrics before they are stored in the time-series database. 2. Problem might be related to that English is not my native language, and I don't understand curry from the function name. We can add some tags (as they are called in Micrometer) or labels (the same concept in Prometheus) to our counter and set the appropriate attribute values every time we increase it. regex: "-". register(registry); 2. You signed in with another tab or window. Example scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. We previously looked at group_left in the context of machine roles. GaugeVec customMetricsTwo *prometheus. You signed out in another tab or window. You can then process the 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:. Much of the content here also Dec 22, 2017 · When it comes to monitoring tools in the last while, Prometheus is definitely hard to miss. A collection of instances with the same purpose, a process replicated for scalability or reliability for example, is called a job. Feb 5, 2021 · February 5, 2021 · Tom Gregory. label_replace(. The most fundamental data type of Prometheus is the scalar — which represents a floating point value. topk and bottomk are different from other aggregators in that a subset of the input samples, including the original labels, are returned in the result Oct 29, 2020 · In other words, with this configuration above we always apply a label with the key: label_example_com_ci_monitoring and the value of this key is either the original value of key label_example_com_ci_monitoring if it’s there and if that label does not exist, we generate a value based on namespace and cluster using a pattern: NS-${1}-[% ci In Prometheus terms, an endpoint you can scrape is called an instance, usually corresponding to a single process. For example, the following relabeling rule May 16, 2020 · Instead, we can use a static Recording Rule so availability target can be just set in one place. # time series with the metric name as given by 'record'. stereotype The example shows a counter metric named payments_total with two labels: status and type. It also offers a registry for metrics. So you could avoid the first 'empty' metric declaration if you like and just keep the second Metrics. Gauge` class in Python is used to assign custom labels to a specific metric of type Gauge. yml config is below. 14. channel. # The time elapsed from time=0s when the alerts have to be checked. counter call. For example, rather than http_responses_500_total and http_responses_403_total, create a single metric called http_responses_total with a code label for the HTTP response code. labels() method alone: from prometheus_client import Counter. Example: Set up Java/JMX sample workloads for Prometheus metric testing. It provides metrics primitives to instrument code for monitoring. For example: - record: job:availability:999 expr: |. Monitoring tools are only as good as the range and visibility they offer admins into applications’ performance. It is recommended to initialize the label values by calling the . // explained in examples. If you do: metric_name. But when i want to do this for over 10 minutes data, it cannot work as label_replace only works on instant vector. Some client libraries, for example Go, will actively try to stop you doing Mar 21, 2020 · I am able to do use label_replace () to do this on the instant vector. For your example query will look like this. scrape_configs: # Make Prometheus scrape itself for metrics. When you've broken a metric out into labels a common need is to tell what proportion each label represents of the total. The data section of the query result consists of a list of objects that contain metric metadata and the target label set. This Jan 17, 2019 · Prometheus allows renaming labels in the following places: During metric scrape. 4 days ago · The number is then directly exported as the Prometheus sample value. Is that possible? Seems a little counterintuitive that labels don't make unique metrics. or this: my_metric{label="a"} 1 my_metric{label="b"} 6 my_metric{} 7. The features that distinguish Prometheus from other metrics and Jul 13, 2020 · In Prometheus, there's label currying. 8) and an instance name (node2). Before applying these techniques, ensure that you’re deduplicating any samples sent from high-availability Prometheus clusters. This guide will show you how to deploy the Prometheus operator, set up a Prometheus instance, and configure metrics collection for a sample application. The value of each time series is the number of times that sample value was present. For pending and firing alerts, Prometheus also stores synthetic time series of the form ALERTS{alertname="<alert name>", alertstate="<pending or firing>", <additional alert labels>}. To go even further with your data, you might use another data transform to turn, for example, a string label value into an integer or floating point value. Template examples. multipass:9100; ip-192-168-64-30. build(). Prometheus sample alert rules: A list of examples of commonly-used Prometheus alert rules. Using group_left to calculate label proportions. Sep 20, 2023 · 0. # A example scrape configuration for running Prometheus with Docker. (sum by (pod_name) (rate (container_cpu_usage_seconds_total [5m]))) This query calculates the Feb 21, 2020 · You can notice that here we have labels allowing us to have a match between an instance IP address (10. The purpose of this post is to explain the value of Prometheus’ relabel_config block, the different places where it can be found, and its usefulness in taming Prometheus metrics. Limitations of Prometheus: Inability to suppress alerts and increasing complexity at scale may pose some challenges. name(name). multipass:9100 Jun 28, 2017 · use prometheus feature flages --enable-feature=expand-external-labels. (starting with capital). Push-based Prometheus Applications pushing metrics to Prometheus Remote Write compatible receivers was not a design goal of this system, and should be explored in a separate doc. # my global config global: scrape_interval: 15s # Set the scrape interval to every 15 seconds. scheme: https # This TLS & authorization config is used to connect to the actual Finally, assuming the same alert as the previous example, we customize our receiver to range over all of the alerts received from the Alertmanager, printing their respective annotation summaries and descriptions on new lines. yml and restart your Prometheus instance: Aug 4, 2021 · For some example scripts that can be used to generate files containing metrics meant to be collected by the textfile collector, see the Prometheus community scripts repository. When pods are deployed, their deployment has certain pod-related labels as shown below. eval_time: <duration>. The following example returns all metadata entries for the go_goroutines metric from the first two targets with label job="prometheus". Mar 18, 2021 · Prometheus is an open source monitoring and alerting tool that helps us to collect and expose these metrics from our application in an easy and reliable way. Friendly Tips：the $ (POD_NAME) valiable has been defined in helm chart resource file (kube-prometheus-stack). Hence in this unit testing, you have to list the union of all the firing alerts for the alertname under a single <alert_test_case>. For example: - source_labels: [unwanted_label] action: drop. 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. Templates have the ability to run queries against the local database, iterate over data, use conditionals, format data, etc. 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. com: 49. Nov 5, 2020 · New label can be added with the following relabeling rule: - target_label: "foo" replacement: "bar" This relabeling rule adds {foo="bar"} label to all the incoming metrics. For more elaborate overviews of Prometheus, see the resources linked from the media section. Examples of scalars include 0, 18. Prometheus, a Cloud Native Computing Foundation project, is a systems and service monitoring system. Use cases: Drop unnecessary Feb 4, 2020 · Prometheus uses three data types for metrics: the scalar, the instant vector, and the range vector. Updating existing label. Features. CollectorRegistry; import io. scrape_interval: 15s. It is now a standalone open source project and maintained independently of any company. All calculations in Prometheus are floating point operations. value is a float represented as required by Go's ParseFloat Nov 5, 2018 · 0. In this example, we will add the group="production" label to the first group of targets, while adding group="canary" to the second. The float samples in b are considered the counts of observations in each bucket of one or more classic histograms. io/scrape: true in the service's annotation. In such cases, you can keep only the necessary labels and drop the rest. labelNames(label=someLabel). Step 2: Scrape Prometheus sources and import metrics. In this article, you will learn the basics of Prometheus including what metrics are, the different types of metrics and when they are used. value is a float represented as required by Go's ParseFloat Push-based Prometheus Applications pushing metrics to Prometheus Remote Write compatible receivers was not a design goal of this system, and should be explored in a separate doc. Cannot retrieve latest commit at this time. Go to the "Visualization" tab: Choose the value "Name" under "Value - Stat". yml. What's the meaning of it? Sorry I didn't find any documentation for this. Must be a valid metric name. Share. The syntax for recording rules is: # The name of the time series to output to. scrape_configs: - job_name: "kubernetes-apiservers" kubernetes_sd_configs: - role: endpoints # Default to scraping over https. The former breaks for people who do a sum() over your metric, and the latter breaks sum and is quite difficult to work with. Metric Labels: These are key-value pairs that provide more context and dimensionality to the metric. e. Apr 17, 2023 · Prometheus has a number of required and optional fields for generating rules. In return you can declare the keys/labels at the same time. When you have multiple metrics that you want to add/average/sum, they should usually be one metric with labels rather than multiple metrics. Prometheus target missing with warmup time Allow a job time to start up (10 minutes) before alerting that it's down. yml file as follows: scrape_interval: 10s # short interval for manual testing scrape_configs: - job_name: "java-example" static_configs: - targets: ["localhost:9400"] This tutorial shows the Jun 4, 2020 · Ok, i kept looking the node label on the wrong location. Every evaluation cycle this is. i've jsut looked on all the metrics exposed by this rabbitmq exporter, and i've found a lot of metrics which includes 2 node labels, such : In the sample syntax: metric_name and label_name carry the usual Prometheus expression language restrictions. // which means the user added prometheus. Aug 28, 2019 · Prometheus relabel configs are notoriously badly documented, so here’s how to do something simple that I couldn’t find documented anywhere: How to add a label to all metrics coming from a specific scrape target. metrics information is stored with the timestamp at which it was recorded, alongside optional key-value pairs called labels. – Aug 1, 2022 · Prometheus Query Tutorial with examples. May 20, 2019 · Fortunately, Micrometer/Prometheus provides a better way to handle this. Taurai. metrics_path: '/metrics'. 001. Metrics with labels are not initialized when declared, because the client can’t know what values the label can have. After that, you will expose metrics of a Golang Jun 17, 2019 · HI @Asier Gomez -- So different "job" value is the only label that can make these metrics unique? I have a scenario that I have two tags/labels that are my "unique" strings, so I would like to use two labels to make a unique metric. record: <string>. Above will create a Recording Rule job:availability:999 which will have no labels and will always yield 0. Then you'll get all the labels that are available on metric_name metric. This guide describes several techniques you can use to reduce your Prometheus metrics usage on Grafana Cloud. The `labels` method in the `prometheus_client. " action: labelmap_all replaces all the regex occurrences in all the label names with the replacement. Share Follow prometheus. If required, just disable this or change to # `http`. Prometheus is regularly scraping your service for metrics though, and when your gauge’s current value is returned Prometheus stores In the sample syntax: metric_name and label_name carry the usual Prometheus expression language restrictions. When querying the DNS-SRV records, a label named __meta_dns_name is attached to each target. Sep 1, 2022 · For example, the following relabeling rule replaces all the - chars with . 4. type customMetrics struct { customMetricsOne *prometheus. Please ensure all examples are submitted in the same format, we'd like to keep this nice and easy to read and maintain. Histogram; import org. Labels provide contextual information about the alert. Here the use case is different as there's only one metric Prometheus allows you to have same alertname for different alerting rules. Reload to refresh your session. The Prometheus templating language is based on the Go templating system. Learn more about bidirectional Unicode characters. The group_left modifier of Prometheus is the key. 29 lines (24 loc) · 934 Bytes. The egress rules of the security group for the CloudWatch agent must allow the CloudWatch agent to connect to the Prometheus workloads' port by private IP. 0. the helm chart's value. Expvar values that are not numbers or bools are silently ignored. You can use a function like this to initialise and return GaugeVec just once and then use it to assign dynamic label values to it. 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. labelNames("label"="someLabel"). It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts when specified conditions are observed. A Prometheus gauge is a specific type of metric used for measurements. ALERTS{alertname="CPUThrottlingHigh",pod="sendsms-ebed"} 20. This is the recommended solution, to get consistently normalized label values. Mar 19, 2024 · # Keep metrics only if `example_label` exists as a label metric_relabel_configs: - source_labels: [example_label_1] action: keep regex: '. Mar 21, 2022 · Relabeling is a powerful tool that allows you to classify and filter Prometheus targets and metrics by rewriting their label set. Step 1: Install the CloudWatch agent. Once the data is collected and stored, you can use Prometheus Jun 1, 2015 · Prometheus 0. The pull request for subquery support was recently merged into Prometheus and will be available in Prometheus 2. prometheus. It has been a long-standing feature request: prometheus/prometheus/1227. externalLabels: prometheus_replica: $(POD_NAME) enableFeatures: - expand-external-labels. Dec 11, 2020 · Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. Alert Expression Syntax: YAML is the format used to build rules. They have two important labels: APP and TEAM: apiVersion: apps/v1 kind: Deployment metadata: labels: APP: AppABC TEAM: TeamABC Getting Started. So, when you’ll decide to cover a multitude of availabilities, you’ll end prometheus-docker. Apr 1, 2021 · Thankfully, Prometheus makes it really easy for you to define alerting rules using PromQL, so you know when things are going north, south, or in no direction at all. To achieve this, add the following job definition to the scrape_configs section in your prometheus. It has quickly risen to be top of the class, with overwhelming adoption from the community and integrations with all the major pieces of the Cloud Native puzzle. The Prometheus Operator’s goal is to make running Prometheus on top of Kubernetes as easy as possible, while preserving Kubernetes-native configuration options. To keep the implementation of our sample app as simple as possible, but have some variation 4 days ago · Overview. # evaluated at the current time, and the result recorded as a new set of. To change values of the labels you can use same function as to renaming labels: label_replace. c = Counter('my_requests_total', 'HTTP Failures', ['method', 'endpoint']) 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 is a metrics monitoring tool that provides a pull-based system to collect and monitor time-series samples. (Float Jun 27, 2017 · This post explains how you can use Prometheus relabeling configuration to manipulate metrics to keep your storage clean and not pollute it with unnecessary data. Just execute your alerting query directly in prometheus (making sure query does return something - remove any threshold etc. client. History. 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;(. Also Prometheus 3. Mar 10, 2023 · How to use label_replace: Lets take a look at a naive example query just to understand the concept. What is the syntax to add a label to my Metrics? I tried the following: 1. The join is usually performed via on Prometheus template variables. # The PromQL expression to evaluate. (For a bool, 'false' translates to 0 and 'true' to 1). ), the configuration file defines everything related to scraping jobs and their instances, as well as which rule files to load Jun 15, 2021 · I'm new to Prometheus and I have a very basic question. 99. aj re ot xy bk ic uw ek rl sj