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In 1.16 k8s deprecated the label kubernetes.io/role: worker I had previously been using as a filter to target graphs to specific node role using this in my grafana variables declaration label_values( Prometheus Metrics ¶ It allows you to specify any number of label/value filters on the fly. They are used to find the compressed log content, which is stored separately as chunks. Enter a Name for your variable. Now comes the fun stuff. Any existing conflicting labels will be overwritten. But without proper notification, we might spend too much time trying to understand what really is going on. vector/scalar, and vector/vector value pairs. The label values can be templated. 1) Push model. The label value must be unique across Prometheus instances, so time series could be filtered and grouped by this label. and the label value is the unique sample value. The following endpoint returns various cardinality statistics about the Prometheus TSDB: GET /api/v1/status/tsdb headStats: This provides the following data about the head block of the TSDB: . Returns the single most recent data . This query returns the overall number of orders created within the last 5 minutes, ignoring all the different label values. You add annotation queries . GitHub. You can use filters in the Monitoring API to do the following: Select the specific time series data that is returned from a list API request. I want to create a query variable in grafana using Loki that returns all the possible label values of the label baz such that they only include label values that exist where the label foo equals "bar" . gallery to LookUp the value from Company using the value from Label1 to get the CompanyName where i want to actually filter the Person table by . In the Type list, select Ad hoc filters. numSeries: The number of series. As described in the above examples, it is possible to filter a metric based on the value of one of the labels: If we write our query as http_requests_total we'll get all time series named http_requests_total along with the most recent value for each of them. As a result, Prometheus collects a lot of metrics that you don't necessarily need all of the time. For this case, all the devs alert marked with a special label: team_name="team1|team2|teamN". The value of each time series is the number of times that sample value was . Variable of the type Query allows you to query Prometheus for a list of metrics, labels, or label values. If you want to filter your dashboard data based on the instance name you need a Grafana variable. Hopefully this will help someone else. I noticed that if my pod has "service" label then the value of the pod is stored in InsightsMetrics.Tags.service field instead of the metric value and now I'm losing information about metric value. filters— Optional filters to use to filter the instance list. The Prometheus metrics jvm_threads_current and jvm_gc_collection_seconds_sum contains both job . The value of the label key2 is value2. label_dp_topic="GEN". Prometheus query to count unique label values. Side note 2: Values are always floating-point numbers; timestamps are integers storing the number of milliseconds since the Unix epoch. Just want to follow up with some more information.. For selecting dynamically {__name__=~".+"} will get all of your metrics. You can also store an optional set of key-value pairs called labels for that metric. New in v2.14. However, what if we try and game the system here. Prometheus console ‍ 11 Queries | Kubernetes Metric Data with PromQL. to Prometheus Developers, pgppro.@gmail.com. loc will have ~180 values (three-digit city alpha codes) shost will have hostnames up to ~3000 label values (six digit alphanumeric) region has ~8 values (global area, two digit alpha codes) origin-ip will have up to =>~700,000 label values which will be a CIDR notation network (i.e. Creates a row. All LogQL queries contain a log stream selector. Fabric; FAB-17525; Peer panic with "panic: inconsistent label cardinality: expected 2 label values but got 0 in prometheus.Labels{}" ; chunkCount: The number of chunks. round () round (v instant-vector, to_nearest=1 scalar) rounds the sample values of all elements in v to the nearest integer. And here's the main issue - I can't set a regexp rule for `match_re` like `team_name: '.*'`. Prometheus query to count unique label values. Now comes the fun stuff. Looking at the docs, I came up with the following query for the variable: label_values (rate ( {foo=~"bar"}, baz) However this returned all the . Devs teams count will grow without any control, so I can't define the static regexp rules for `match_re`. This functionality can be used for limiting the scope of time series visible to the . . A better option might be to tell Prometheus to respect selected labels when aggregating, e.g. Fork 2k. source_labels specifies the value of the labels that are checked by the label_matcher line. ; maxTime: The current maximum timestamp in milliseconds. count (count by (a) (hello_info)) First you want an aggregator with a result per value of a, and then you can count them. Ad hoc filters variable. You can run a variety of PromQL queries to pull interesting and actionable metrics from your Kubernetes cluster.These queries will give you insights into node health, Pod health, cluster resource utilization, etc. @return A Prometheus target to be added to panels. In order to simplify by filtering, we need to understand how to use metric labels. These filters are automatically applied to all your Prometheus queries. sum by (__name__) ( {__name__=~".+"}) will get just their names without extra label/redundancy cruft. 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. For more information, refer to the Mozilla guide on Regular expressions. Play. varnish_main_client_req); One or more labels, which are simply key-value pairs that distinguish each metric with the same name (e.g. Additionally, to enable the filtering the original poster seems to . . Typically in your app you could use 2 kinds of metrics: 2) Monitoring that allows to add metrics into your app, mostly business or performance metrics. . Optionally, the log stream selector can be followed by a log pipeline. The easiest example that I have in mind would be to filter "up" query to only retrieve down instances. . This blog post will give you an overview of common caveats of using labels in Prometheus alerts and demonstrate some technics how to get concise and easy to understand notifications. Note, with label dropping you need to ensure that the final metrics after label drop are still uniquely labeled and not resulting in duplicate time-series with different values. Pull requests 67. label_dp_language="eng-USA". Here is my scenario : 1. I would very much like to see this feature implemented. To bulk drop or keep labels, use the labelkeep and labeldrop actions. 9 lux4rd0, pnowy, nhuray, pgassmann, luddskunk, rxacevedo, Doome161, E7David, and joemiller reacted with thumbs up emoji Imagine if you had two different Prometheus servers configured to remote write to Prometheus Remote Write. Join the values of two labels with a -separator into a new endpoint label: label_join (rate (demo_api_request . Prometheus adds labels to the values of each time series. In the next few lessons, we will look at how to create and use dashboard variables. Have a question about this project? A better option might be to tell Prometheus to respect selected labels when aggregating, e.g. PromLabs - Products and services around the Prometheus monitoring system to make Prometheus work for you . There is a label in common between the two metrics "node_meta" and "node_disk_bytes_read": instance. Click the Totals & Filters tab Under Filters, add a check mark to 'Allow multiple filters per field.'. This page shows how to use regex to filter/modify values in the variable dropdown. Every interval (for example 30s) app sends metrics to some endpoint in predefined format. // Labels are fixed - calculate it once up-front and remember the value. Filtering based on labels. To return one record that matches your condition (always the first record encountered), use this formula: If you want to return a sepcific record from the results of a Filter, then use the following formula: Replace x above with the record number in the table you want to return. Tags are mapped to Prometheus labels format as-is. It allows us to ask Prometheus for a point in time value of some time series. VictoriaMetrics starts from the right part of the a and b query, e.g. Star 16.1k. You can run a variety of PromQL queries to pull interesting and actionable metrics from your Kubernetes cluster.These queries will give you insights into node health, Pod health, cluster resource utilization, etc. A scalar value is a simple numeric value without any labels. This is what Prometheus designed for. Watch the steps in this short video, and the written instructions are below the video. / loki Public. To change the Pivot Table option to allow multiple filters: Right-click a cell in the pivot table, and click PivotTable Options. SingleStat -> Options -> Value Stat (name) Go back to SingleStat Metrics -> Legend format { {version}} You can pick any label of the nodejs_version_info query. A log pipeline is a set of stage expressions that are chained together and applied to the selected log streams. Amend label format . throw new ArgumentNullException ( "A label value cannot be null." ); } Values = values; Names = names; // Calculating the hash code is fast but we don't need to re-calculate it for each comparison. We can combine sum with some label expressions, e.g. For Loki to be efficient and cost-effective, we have to use labels responsibly. Manipulating labels. This means that all our labels are always listed but the query returns a different result depending on whether that label is the actual status of the pod. Annotations. count (count by (a) (hello_info)) First you want an aggregator with a result per value of a, and then you can count them. Their behavior can be modified by providing bool after the operator, . For highly loaded Prometheus instances (200k+ samples per second) the following tuning may be applied: . to get the number of all DE orders. Prometheus monitors Pod status via kube_pod_status_phase metric. Cool, 12 as expected. I've made this formula to only get the floor level; If(Len(TestLabel.Text) = 2; Right(TestLabel.Text; 1); Right(TestLabel.Text; 2)) 0. For more information and examples, see Retrieving time series data. . ; The value, which is a float64.When querying in the Prometheus console, the value . Project: django-prometheus Author: korfuri File: test_testutils.py License: Apache License 2.0. Navigate to the dashboard you want to make a variable for and then click the Dashboard settings (gear) icon at the top of the page. Field values are mapped to time series values. Instead of label_replace (up {job="api-server",service . Not being able to filter labels to specific hosts (or other attributes) means that I'm forced . Each expression can filter out, parse, or mutate log lines and their respective labels. @params. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Rows are logical dividers within a dashboard and used to group panels together. I need some guidance to do gallery filtering using a value on a Label text that comes from LookUp function from another table. Examples of filtering on the following list of options: Activate the "instant" option. You can use a relabel_config to filter through and relabel: Scrape targets; Samples and labels to ingest into Prometheus storage; Samples and labels to ship to remote storage Log queries. 10 votes. I am expecting output as "eng-USA-GEN" and others values in variable from below query. it executes label_copy(metric_1{instance="abc"}, "host", "domain"). The annotations clause specifies a set of informational labels that can be used to store longer additional information such as alert descriptions or runbook links . Panels in a . Hey there everyone, right now i have a S3 bucket which continuasly gets data from a outdoor sensor which i mounted in my backyard. Below configuration: POD yaml defintion: apiVersion . Use the label_values({job!="blackbox"},instance) query to return labels for instances that are not monitored by a blackbox exporter. Enter the label name as the legend using the { { [LABEL]}} notation (here { {app_state}} ). 2) Pull model. ; minTime: The current minimum timestamp in milliseconds. Now, the metrics for the EKS add-ons have the priority_class label with values of system-cluster-critical or system-node-critical whereas the prometheus pod metrics do not . This multiple may also be a fraction. 1 . You may also want to check out all available functions/classes of the module prometheus_client , or try the search function . Ties are resolved by rounding up. Lets say i have three table on SQL server . TSDB Stats. Code. For example {{hostname}} is replaced with the label value for the label hostname. label filters to the given <query>. The Problem: One Prometheus Instance per Kubernetes Cluster. PromLabs - Products and services around the Prometheus monitoring system to make Prometheus work for you. It has a few values like these for example, which are the floor levels; V1 V2 V3 V4.. V11 etc Now I can't filter the gallery based on that value since it isn't a number, because the V in front of it. We can combine sum with some label expressions, e.g. It has a phase label and if the Pod is in that given phase, the call returns a value of 1, otherwise it returns 0. Labels can be attached to objects at creation time and subsequently added and . Go to the "Visualization" tab: Choose the value "Name" under "Value - Stat". This query returns the overall number of orders created within the last 5 minutes, ignoring all the different label values. Filter prometheus results by metric value, not by label value Filtering is done with the comparison operators, for example x > 0 . Labels are the index to Loki's log data. By default they filter. I hope this is helpful for you. Using the Regex Query Option, you filter the list of options returned by the Variable query or modify the options returned. @vishiy Tags.service has value of pod label instead of value from prometheus metric. Example scrape_configs: # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. Using filters. In the above example, there are four different time series. For example, the following InfluxDB line: foo,tag1=value1,tag2=value2 field1=12,field2=40 . But only two metric names. You can notice that here we have labels allowing us to have a match between an instance IP address (10.0.0.8) and an instance name (node2). We can further customize the query and filter results by adding label matchers, like http_requests_total{status="500 The result of an expression can either be shown as a graph, viewed as tabular data in Prometheus's expression browser, or consumed by external systems via the HTTP API. Prometheus provides a functional query language called PromQL (Prometheus Query Language) that lets the user select and aggregate time series data in real time. Prometheus supports the special ad hoc filters variable type. 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. I've recently deployed the second Kubernetes cluster into the homelab environment, and realised that if I send alerts to the same Slack channel, I can't tell which environment the alert somes from. As developers, we hear a lot about the importance of monitoring and alerts. If you're confused by brian's answer: The result of filtering with a comparison operator is not a boolean, but the filtered series. *, so that character's length is very less in the query. Notifications. In my dashboard Add row -> SingleStat -> Metrics tab -> Query is : nodejs_version_info , now value displayed is 1. That allows you to filter those HTTP requests, enabling queries like "give me the requests with a 200 OK response for the handler /users ". collapse: (default false) The initial state of the row when opening the dashboard. Labels can be combined in a number of different ways using functions, in order to answer a wide range of questions from the all the data collected by Prometheus. : 10.3.2.0/24) Description. You can filter those extra metrics out using PromQL. The parts are: Metric_name (e.g. Returns a list of label values for the label in every metric. . This newly generated CSV-data is then being send via Kinesis to my telegraf agent where i preprocess the data and send it to my influxdb afterwards. Prometheus console ‍ 11 Queries | Kubernetes Metric Data with PromQL. Prometheus stores the instance or host name for every metric. This allows you to filter/scope metrics when using them, similar to setting an agent tag. Export current metric values in OpenMetrics format or Prometheus format, suitable for import into an external monitoring system. It allows you to specify any number of label/value filters on the fly. Every unique combination of label and values defines a stream, and logs for a stream are batched up, compressed, and stored as chunks. label_replace is a built-in function that will save our day. For example, the following query converts the number of processed bytes by a simulated last batch job run into MiB: We are going to customise Prometheus alerts by using external labels. Returns a list of label names. (optional) In Label, enter the display name of the variable dropdown. LogQL shares the same range vector concept from Prometheus, except the selected range of samples include a value of 1 for each log entry. Go to the "Queries" tab: Enter the name (here db2_prometheus_adapter_info) of the metric. Labels can be used to organize and to select subsets of objects. The filter can select time series based on the data's project, group, monitored resource properties, and metric properties. Although this is not necessarily a feature most of our users would need (especially since Grafana effectively provides this with their label_values() function), I've hit a wall with a specific project using Prometheus as the backend data store. Annotations allow you to overlay rich event information on top of graphs. Labels can be used in queries to filter or group the results. To drop a specific label, select it using source_labels and use a replacement value of "". You can also add filters to the query. The Prometheus data source plugin provides the following functions you can use in the Query input field. From the documentation it is clear that function is intended to be used to replace some existing labels with the new values which are derivative of the existing labels. Other example: If you want to count the number of apps deployed in a kubernetes cluster based on different values of a label ( ex:app): count (count (kube_pod_labels {app . Here's my Alertmanager config . Prometheus's query language supports basic logical and arithmetic operators. Solution. . namespace="section-b4a199920b24b").Each metric will have at least a job label, which corresponds to the scrape config in the prometheus config. calculate the sums by country. This works partially because label_values doesn't accept a full-featured query, only a label matcher, meaning that it will only work for the labels available before using the json or logfmt parsers. 1. But there might be a lot of different values for labels and a lot of different descriptions. We will create the variables using the Data sources set up in all the previous lessons. If you don't enter a display name . Labels are key/value pairs that are attached to objects, such as pods. Prometheus is an open-source tool for collecting metrics and sending alerts. to get the number of all DE orders. It is a good idea to add some limit for them, for example, only the first 10 descriptions: 5. QUESTION? For example, it can store time-stamped values of the total number of HTTP requests received. The optional to_nearest argument allows specifying the nearest multiple to which the sample values should be rounded. Labels are a fundamental element for the Prometheus data-model as, with PromQL, you can filter and aggregate based on not only metrics, but also labels. Of course there are many types of queries you can write, and other useful queries are . Labels must be prefixed when used in queries: . This example filters based on EC2 instance IDs. Querying Prometheus. Labels are intended to be used to specify identifying attributes of objects that are meaningful and relevant to users, but do not directly imply semantics to the core system. Example 1. To make this more useful, Prometheus allows you to apply common arithmetic operators (+, -, *, /, %) to entire time series vectors. Depending how many labels you use to filter down the log streams will affect the relative performance of the query's execution. Some of the key features of Prometheus metrics monitoring are: Multi-dimensional data model Prometheus stores data as time-series. A label is a key-value attribute associated with a metric data point. The issue is same label_values doesnt work with query_result, can someone suggest me how can I append two labels and . It was developed by SoundCloud. Use it only for metrics with small cardinality. It has the following primary components: The core Prometheus app - This is responsible for scraping and storing metrics in an internal time series database, or sending data to a remote storage backend. Categories . Of course there are many types of queries you can write, and other useful queries are . row.new. You can specify custom label/value pairs to be sent along with each time series, using the external_labels block within the global section. Filter already allow us to select a set of metrics according to labels, but in some case, it would be useful to filter on the metric value. 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.. Use cases: Drop unnecessary . An aggregation can be applied over the selected range to transform it into . Other example: If you want to count the number of apps deployed in a kubernetes cluster based on different values of a label ( ex:app): count (count (kube_pod_labels {app . On the Variables tab, click New. Query = label_values(prometheus), here it means I want all the label values names prometheus(bad choice for federation though) Multi-value= Enabled, because it let the users select more than one value of the vars like "dev" + "qa" + "stg" + "prod" Custom all value= . For example, the following query would filter out time series with . I need to get the custom label => label_dp_language + "-" + label_dp_topic. Issues 300. It's just doesn't work. Starting using Prometheus I'm looking for a way to filter some of my queries on the metric value. calculate the sums by country. How to query prometheus to have sum of "disk bytes read" by instance/node/server . To do this effectively, you need to know every . Note on the "Instant" setting: This setting switches . I.e., a time series in Prometheus is defined by a combination of a metric name and a particular set of key-value labels. The labels clause allows specifying a set of additional labels to be attached to the alert. This can be done with label_value () function from MetricsQL: count by (deployTime, foo) ( label_value (my_metric {foo=~"."}, "deployTime") > 1603284799 ) MetricsQL also supports now () function, which can simplify calculations for timestamp relative to the current time. --prom-filter-label-value - the regular expression to filter the label value.

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