{"id":13616,"date":"2025-10-16T17:11:20","date_gmt":"2025-10-16T15:11:20","guid":{"rendered":"https:\/\/www.canopsis.fr\/prometheus-open-source-for-monitoring-and-alerting\/"},"modified":"2025-10-21T10:18:14","modified_gmt":"2025-10-21T08:18:14","slug":"prometheus-open-source-for-monitoring-and-alerting","status":"publish","type":"post","link":"https:\/\/www.canopsis.fr\/en\/prometheus-open-source-for-monitoring-and-alerting\/","title":{"rendered":"Prometheus: Open Source for monitoring and alerting!"},"content":{"rendered":"\n<p>In an IT context where the volume of information is exploding, a powerful metrics tool is essential. But traditional monitoring <a href=\"https:\/\/www.canopsis.fr\/en\/it-supervision-focus-on-open-source-solutions-part-1\/\">methods<\/a> sometimes struggle to provide sufficiently granular and responsive visibility. It is in this context that Prometheus stands out as a cornerstone of modern observability.<\/p>\n\n\n\n<p>In this article, we take a technical look at Prometheus, its strengths and uses. We&#8217;ll also look at the advantages of combining it with our open-source hypervisor solution, Canopsis. <\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-solution-overview\"><strong>Solution overview<\/strong><\/h2>\n\n\n\n<p>Prometheus is an <a href=\"https:\/\/prometheus.io\/\">open source monitoring solution<\/a> focused on time-series metrics. Initiated in 2012 at <a href=\"https:\/\/soundcloud.com\/\">SoundCloud<\/a>, it subsequently became a key component of the Cloud Native ecosystem. In 2016, this initiative joined the <a href=\"https:\/\/www.cncf.io\/\">Cloud Native Computing Foundation<\/a> (CNCF).  <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-its-main-architectural-principles-are\">Its main architectural principles are :<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Time series database<\/strong>: The tool stores metrics associated with timestamps, often enriched with tags.<\/li>\n\n\n\n<li><strong>Pull&#8221; collection model<\/strong>: Prometheus periodically polls HTTP exposure points (\/metrics) on applications or exporters. This ensures precise collection control and consistent data. <\/li>\n\n\n\n<li><strong>PromQL<\/strong>: This rich language lets you formulate complex queries to aggregate, filter and correlate metrics.<\/li>\n\n\n\n<li><strong>Integrated Alerting<\/strong>: Prometheus integrates an alarm system, <a href=\"https:\/\/prometheus.io\/docs\/alerting\/latest\/alertmanager\/\">Alertmanager<\/a>, capable of :\n<ul class=\"wp-block-list\">\n<li>Manage suppression of redundant alerts,  <\/li>\n\n\n\n<li>Define conditions,  <\/li>\n\n\n\n<li>Send notifications according to rules,<\/li>\n\n\n\n<li>And to regroup.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-prometheus-relies-on-a-multitude-of-exporters-to-capture-and-monitore-metrics-from-each-layer\">Prometheus relies on a multitude of exporters to capture and monitore metrics from each layer:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>infrastructure (servers, OS)<\/li>\n\n\n\n<li>application services,  <\/li>\n\n\n\n<li>databases,  <\/li>\n\n\n\n<li>network&#8230;<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>In most cases, it also integrates with <a href=\"https:\/\/grafana.com\/\">Grafana<\/a> to visualize and build interactive dashboards for IT monitoring:<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:5%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:90%\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"790\" data-id=\"13601\" src=\"https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Exemple-de-dashboards-Grafana-x-Prometheus-1024x790.png\" alt=\"Example of Grafana x Prometheus dashboards\nImage rights: Prometheus.io\" class=\"wp-image-13601\" srcset=\"https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Exemple-de-dashboards-Grafana-x-Prometheus-1024x790.png 1024w, https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Exemple-de-dashboards-Grafana-x-Prometheus-300x232.png 300w, https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Exemple-de-dashboards-Grafana-x-Prometheus-768x593.png 768w, https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Exemple-de-dashboards-Grafana-x-Prometheus.png 1184w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:5%\"><\/div>\n<\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-prometheus-technical-and-functional-benefits\"><strong>Prometheus technical and functional benefits<\/strong><\/h2>\n\n\n\n<p>Here&#8217;s what Prometheus brings to the table, over and above its core capabilities of monitoring.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-technical-advantages\">Technical advantages<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Flexibility and multi-dimensionality<\/strong><\/li>\n<\/ul>\n\n\n\n<p>The use of labels enables metrics to be sorted, aggregated and broken down along various axes (instance, version, region, service type). Very useful for distributed infrastructures! <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Scalability and modularity<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Prometheus is lightweight by nature. However, it can be scaled up via federated architectures, clusters, remote write or third-party ingestion components. Analysts, operators and engineers can therefore distribute loads according to geographical zones or functions.  <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Alert accuracy<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Thanks to the combination of fast local storage, fine-tuned alert rules and low collection latency, Prometheus provides early, reliable alerts.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Interoperability and integrations<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Many platforms integrate with Prometheus to ingest or export metrics. For example, <a href=\"https:\/\/www.elastic.co\/fr\/\">Elastic<\/a> offers a Prometheus integration that enables metrics to be collected via exporters, Remote-Write or PromQL queries. <\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-functional-advantages\">Functional advantages<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Near real-time visibility<\/strong><\/li>\n<\/ul>\n\n\n\n<p>For mission-critical operations, being able to observe CPU load, latency and application or infrastructure errors in near-real time is a strategic advantage!<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Versatile use cases<\/strong>\n<ul class=\"wp-block-list\">\n<li>Monitoring of physical or virtual infrastructures<\/li>\n\n\n\n<li>Container \/ <a href=\"https:\/\/kubernetes.io\/\">Kubernetes<\/a> monitoring<\/li>\n\n\n\n<li>Business application monitoring (response times, errors)<\/li>\n\n\n\n<li>IoT and embedded devices (with certain limits depending on frequency and cardinality)<\/li>\n\n\n\n<li>Proactive incident prevention<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Visualizing and exploring trends<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Dashboards (Grafana or others) can also be used to analyze trends, forecast peak loads, detect anomalies, manage capacity or model performance for SLAs.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cost reduction<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Open source = no license fees. The cost is in sizing (storage, instances), but the flexibility enables optimized use. <\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-prometheus-can-do-in-combination-with-canopsis\"><strong>What Prometheus can do in combination with Canopsis<\/strong><\/h2>\n\n\n\n<p>Now that we&#8217;ve seen what Prometheus is and its strengths, let&#8217;s look at what we can achieve by combining it with our open-source hypervisor solution like <a href=\"https:\/\/www.canopsis.fr\/en\/canopsis-features\/\">Canopsis<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-synergy-between-events-and-metrics\">Synergy between events and metrics<\/h3>\n\n\n\n<p>Canopsis aggregates events from supervisors, repositories, logs, CMDB&#8230; Prometheus provides continuous metrics: latency, error rates and resource utilization. <\/p>\n\n\n\n<p>By combining the two, we can not only detect alerts via Canopsis, but also have access to the metric context that generated them, enabling faster diagnosis.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-prometheus-connector-for-canopsis\">Prometheus connector for Canopsis<\/h3>\n\n\n\n<p>Prometheus, coupled with Alertmanager, generates alarms that are received by the dedicated Canopsis connector. It takes the form of an <a href=\"https:\/\/prometheus.io\/docs\/operating\/integrations\/#alertmanager-webhook-receiver\">Alertmanager webhook receiver<\/a>. Received webhooks are transformed into Canopsis events.  <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-real-life-use-cases\">Real-life use cases<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Accelerated incident diagnosis<\/strong>: an alert triggered in Canopsis can display, in its panel, associated metrics thanks to Prometheus &#8211; input latency, CPU\/memory on relevant services, intermittent errors.<\/li>\n\n\n\n<li><strong>KPIs \/ business trends<\/strong>: collection of business metrics exposed via Prometheus and integration into Canopsis for reporting, dashboards, service environments, impact maps.<\/li>\n\n\n\n<li><strong>Noise reduction \/ false alarms<\/strong>: metrics to check whether an alarm is due to a temporary spike\/bottleneck or whether it&#8217;s really a stable problem, and Canopsis can filter according to these metrics.<\/li>\n\n\n\n<li><strong>Automation \/ <a href=\"https:\/\/www.canopsis.fr\/en\/remediation-guidelines\/\">remediation<\/a><\/strong>: Prometheus alerts \u2192 Canopsis \u2192 triggering automatic or semi-automatic actions or workflows, tickets, escalations according to indicators.<\/li>\n\n\n\n<li><strong>Correlation:<\/strong> Prometheus alerts are aggregated in the unique Canopsis console, enabling alarms received to be confirmed or denied by applying <a href=\"https:\/\/www.canopsis.fr\/en\/alarm-correlation\/\">correlation<\/a> rules.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Benefits for Canopsis users<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Complete IS vision<\/strong>: metrics + alarms + logs + repositories in a single management layer.<\/li>\n\n\n\n<li><strong>Reduce false positives\/false alarms<\/strong>: by combining metrics (e.g. load or error rate) and events, we can avoid alerting you to temporary or insignificant incidents.<\/li>\n\n\n\n<li><strong>Improved responsiveness<\/strong>: the operation has a centralized alarm database (Canopsis) enriched with real-time metrics, facilitating rapid decision-making.<\/li>\n\n\n\n<li><strong>History, reporting, powerful KPIs<\/strong>: with Prometheus as a reliable metric source, Canopsis can offer more robust reports, comparisons over time, capacity analyses&#8230;<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-to-conclude-on-prometheus-monitoring-and-canopsis\"><strong>To conclude on Prometheus monitoring&#8230; and Canopsis!<\/strong><\/h2>\n\n\n\n<p>Prometheus is therefore an extremely powerful monitoring tool for collecting, storing and querying high-frequency metrics, via exporters. With Alertmanager, its alarms can be transmitted to a hypervision tool like Canopsis, which will reduce the &#8220;noise&#8221;, thus avoiding drowning users in irrelevant alarms.<\/p>\n\n\n\n<p>From Prometheus metrics to Canopsis <a href=\"https:\/\/www.canopsis.fr\/en\/service-weather\/\">service weather<\/a>: the Prometheus connector helps to calculate service weather business indicators, by combining the metrics received with other sources of information.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:5%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:90%\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"498\" data-id=\"13607\" src=\"https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Meteo-des-services-Article-Prometheus-1024x498.png\" alt=\"Service weather - Prometheus article\" class=\"wp-image-13607\" srcset=\"https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Meteo-des-services-Article-Prometheus-1024x498.png 1024w, https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Meteo-des-services-Article-Prometheus-300x146.png 300w, https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Meteo-des-services-Article-Prometheus-768x374.png 768w, https:\/\/www.canopsis.fr\/wp-content\/uploads\/2025\/10\/Meteo-des-services-Article-Prometheus.png 1379w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:5%\"><\/div>\n<\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>If you use Canopsis, Prometheus integration is a natural step for :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>gain<\/strong> granular <strong>visibility<\/strong>,<\/li>\n\n\n\n<li><strong>diagnose faster<\/strong>,<\/li>\n\n\n\n<li><strong>reduce downtime<\/strong>,<\/li>\n\n\n\n<li><strong>improve<\/strong> internal\/external user <strong>satisfaction<\/strong>.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Want to find out more about what Prometheus and Canopsis can do for your IS?  <a href=\"https:\/\/www.canopsis.fr\/en\/contacts\/\">Come and talk to our Open Source experts!<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In an IT context where the volume of information is exploding, a powerful metrics tool is essential. But traditional monitoring methods sometimes struggle to provide sufficiently granular and responsive visibility. It is in this context that Prometheus stands out as a cornerstone of modern observability. In this article, we take a technical look at Prometheus, [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":13620,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[65],"tags":[143,144,146],"class_list":["post-13616","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-hypervision-en","tag-supervision-en","tag-observability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Monitoring: Discovers Prometheus, the metrics tool<\/title>\n<meta name=\"description\" content=\"In an IT context where the volume of information is exploding, having a powerful monitoring 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