TCP port 8086 is used for client-server communication over InfluxDB\u2019s HTTP API You can view the current configuation with:<\/p>\n The configuration file can be found in:\u00a0\/etc\/influxdb\/influxdb.conf<\/span><\/p>\n Let’s create a database and make it secure. Create an admin user with all the rights and a user used by Telegraf.<\/p>\n After that set auth-enabled = true in influxdb.conf and restart influxd The configuration can be found in:\u00a0\/etc\/grafana\/grafana.ini<\/span><\/p>\n Now you should be able to login to Grafana with a web browser. Create a datasource after changing the default password. Database: MONITORDB Next thing we need to do is to install and configure a Telegraf agent on a server we would like to monitor.<\/p>\n The configuration file can be found in: \/etc\/telegraf\/telegraf.conf After that restart influxdb Next thing is to make all of this visible in Grafana. https:\/\/docs.influxdata.com\/influxdb\/v1.7\/<\/a> Introduction In order to gain some knowledge about Grafana, InfluxDB and Telegraf I did a basic installation. Grafana and InfluxDB were installed on a CentOS 7 server. The Telegraf agent was installed on a separate CentOS 7 server (which also hosts petersplanet.nl by the way). Versions: InfluxDB: 1.7.1 Grafana: 5.3.4-1 Telegraf: 1.8.3-1<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-372","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/posts\/372","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/comments?post=372"}],"version-history":[{"count":23,"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/posts\/372\/revisions"}],"predecessor-version":[{"id":400,"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/posts\/372\/revisions\/400"}],"wp:attachment":[{"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/media?parent=372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/categories?post=372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.petersplanet.nl\/index.php\/wp-json\/wp\/v2\/tags?post=372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n<\/span>TCP port 8088 is used for the RPC service for backup and restore<\/span><\/p>\ninfluxd config<\/span><\/pre>\ninflux -precision rfc3339<\/span>\r\n> CREATE DATABASE \"MONITORDB\"\r\n> SHOW DATABASES\r\n> CREATE USER \"admin\" WITH PASSWORD 'secret' WITH ALL PRIVILEGES\r\n> CREATE USER \"monitor\" WITH PASSWORD 'secret'\r\n> GRANT ALL ON \"MONITORDB\" to \"monitor\"\r\n> SHOW GRANTS FOR \"monitor\"\r\n> SHOW USERS\r\n<\/pre>\n
\nFor this demo we will skip the retention policy but usually you will need to set that as well.<\/p>\nGrafana<\/h3>\n
# Get the software\r\nwget https:\/\/s3-us-west-2.amazonaws.com\/grafana-releases\/release\/grafana-5.3.4-1.x86_64.rpm\r\n\r\n# and install\r\nsudo yum localinstall grafana-5.3.4-1.x86_64.rpm\r\nsystemctl enable grafana-server\r\nsystemctl start grafana-server\r\nsystemctl status grafana-server\r\n<\/pre>\n
\nURL: http:\/\/<your-server>:3000\/
\nusername: admin
\npassword: admin<\/p>\n
\nName: monitords
\nType: InfluxDB<\/p>\n
\nusername: secret
\npassword: secret<\/p>\nTelegraf<\/h3>\n
# Get the software\r\nwget https:\/\/dl.influxdata.com\/telegraf\/releases\/telegraf-1.8.3-1.x86_64.rpm\r\n\r\n# and install\r\nsudo yum localinstall telegraf-1.8.3-1.x86_64.rpm\r\nsystemctl enable telegraf\r\nsystemctl start telegraf\r\n<\/pre>\n
\nWe will need to change some settings to be able to communicate with the InfluxDB database.
\nChange in telegraf.conf:<\/p>\n[[outputs.influxdb]]\r\n\r\nurls = [\"http:\/\/<your-influxdb-server>:8086\"]\r\ndatabase = \"MONITORDB\"\r\nusername = \"monitor\"\r\npassword = \"secret\"<\/pre>\n
\nNow some basic inputs will be send to the Influx database. You can check this in InfluxDB.<\/p>\ninflux -precision rfc3339\r\n> auth\r\n> use MONITORDB\r\n> show MEASUREMENTS\r\n> select * from CPU\r\n> select * from system\r\n> show series<\/pre>\n
Result<\/h3>\n
\nCreate a new dashboard, add Panels to it and click on the title of a Panel to edit the settings.<\/p>\n![\"\"](\"https:\/\/www.petersplanet.nl\/wp-content\/uploads\/2018\/11\/grafana-memory-1024x569.jpg\")
\nTo get more information you can check the URLs below.<\/p>\nReferences:<\/h3>\n
\nhttps:\/\/docs.influxdata.com\/telegraf\/v1.8\/<\/a>
\nhttp:\/\/docs.grafana.org\/guides\/getting_started\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"