[Unit]<\/p>
Description=Node Exporter<\/p>
After=network.target<\/p>
[Service]<\/p>
User=node_exporter<\/p>
Group=node_exporter<\/p>
Type=simple<\/p>
ExecStart=\/usr\/local\/bin\/node_exporter<\/p>
[Install]<\/p>
WantedBy=multi-user.target<\/p><\/blockquote>\n\n\n\n
Step 4:<\/strong> Reload the system daemon and start the node exporter service.<\/p>\n\n\n\nsystemctl daemon-reload<\/p>
systemctl start node_exporter<\/p><\/blockquote>\n\n\n\n
Step 5:<\/strong> Check the node exporter status to make sure it is running in the active state.<\/p>\n\n\n\nsystemctl status node_exporter<\/p><\/blockquote>\n\n\n\n
Step 6:<\/strong> Enable the node exporter service to the system startup.<\/p>\n\n\n\nsystemctl enable node_exporter<\/p><\/blockquote>\n\n\n\n
Now, node exporter would be exporting metrics on port 9100. <\/strong><\/p>\n\n\n\nYou can see all the server metrics by visiting your server URL on \/metrics as shown below.<\/p>\n\n\n\n
https:\/\/<server-IP>:9100\/metrics<\/p><\/blockquote>\n\n\n\n
Something like this:<\/strong><\/p>\n\n\n\n<\/span>Configure the Server as Target on Prometheus Server<\/strong><\/span><\/h2>\n\n\n\nIf everything is working upto this point, Congratulations! You have configured a node exporter, it is up and running on the server, we have to add this server a target on the Prometheus server configuration.<\/p>\n\n\n\n
Note: This configuration should be done on the Prometheus server. If you have followed along the previous tutorial it should be that machine, if not please configure it before moving ahead.<\/p>\n\n\n\n
Step 1:<\/strong> Login to the Prometheus server and open the prometheus.yml file.<\/p>\n\n\n\nvi \/etc\/prometheus\/prometheus.yml<\/p><\/blockquote>\n\n\n\n
Step 2:<\/strong> Inside the scrape config change the scrape config section add the node exporter target as shown below. Change 10.1.213.2 with your server IP where you have setup node exporter. Job name can be your server hostname or IP for identification purposes.<\/p>\n\n\n\n – job_name: \u2018node_test\u2019<\/p>
scrape_interval: 5s<\/p>
static_configs:<\/p>
– targets: [‘10.1.213.2:9100’]<\/p><\/blockquote>\n\n\n\n
Step 3:<\/strong> Restart the prometheus service for the configuration changes to take place.<\/p>\n\n\n\nsystemctl restart prometheus<\/p><\/blockquote>\n\n\n\n
Now, if you check the target in prometheus web UI (http:\/\/<prometheus-IP>:9090\/targets) , you will be able to see the status as shown below.<\/p>\n\n\n\nAlso, you can use the Prometheus expression browser to query for node related metrics. Following are the few key node metrics you can use to find its statistics.<\/p>\n\n\n\n
node_memory_MemFree_bytes<\/p>
node_cpu_seconds_total<\/p>
node_filesystem_avail_bytes<\/p>
rate(node_cpu_seconds_total{mode=”system”}[1m])<\/p>
rate(node_network_receive_bytes_total[1m])<\/p><\/blockquote>\n\n\n\nI have used “node_filesystem_avail_bytes” as an example to showcase the results.<\/p>\n\n\n\n
If everything is working until now, Cheers! See you in the next one!<\/p>\n","protected":false},"excerpt":{"rendered":"
There are multiple exporters that can be used to collect all the Linux server related metrics and statistics for monitoring. However, Node is the best way to monitor Linux Servers Using Prometheus In this article we will learn how to setup Prometheus node exporter. This will be used to export<\/p>\n","protected":false},"author":4,"featured_media":1777,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5,3],"tags":[73,69,71,70,72,74],"class_list":["post-1766","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledgebase","category-tutorial-how-to","tag-node-centos","tag-prometheus","tag-prometheus-centos","tag-prometheus-linux","tag-prometheus-node-exporter","tag-prometheus-node-exporter-centos"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.virtono.com\/community\/wp-content\/uploads\/2020\/07\/prometheus-node-exporter-status.png?fit=2002%2C788&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7ISfL-su","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":1774,"url":"https:\/\/www.virtono.com\/community\/tutorial-how-to\/how-to-integrate-and-visualize-prometheus-metrics-in-grafana\/","url_meta":{"origin":1766,"position":0},"title":"How To Integrate and Visualize Prometheus Metrics In Grafana","author":"Shreyash Sharma","date":"July 29, 2020","format":false,"excerpt":"Generally speaking, Prometheus is good, after all he was a titan, created humanity, gave us fire. 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