Chronograf: Difference between revisions
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(Created page with "https://influxdata.com/time-series-platform/chronograf/") |
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[[Image:chronograf-graph.png|300px|right|thumb|Définition d'un graphique dans Chronograf]] |
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[[Image:chronograf-dashboard.png|300px|right|thumb|Affichage d'un dashboard dans Chronograf]] |
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Interface de visualisation de séries temporelles stockées dans une base de données [[InfluxDB]]. Permet de créer des dashboards à partir des graphiques définis. |
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https://influxdata.com/time-series-platform/chronograf/ |
https://influxdata.com/time-series-platform/chronograf/ |
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=Installation= |
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Il faut préalablement installer [[InfluxDB]]. |
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<pre> |
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wget https://s3.amazonaws.com/get.influxdb.org/chronograf/chronograf_0.10.0-rc2_amd64.deb |
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sudo dpkg -i chronograf_0.10.0-rc2_amd64.deb |
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</pre> |
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Si besoin, Configurer Chronograf en éditant le fichier /opt/etc/chronograf.toml |
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Démarrer Chronograf |
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<pre> |
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sudo service chronograf start |
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ps wwwax | grep chronograf |
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</pre> |
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Remarque: Chronograf stocke ses informations dans ~/chronograf.db |
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==Utilisation== |
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Naviguer sur https://localhost:10000/ |
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# Ajoutant des entrées à la série cluster depuis le shell d’influx |
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<pre> |
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CREATE DATABASE mycluster |
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SHOW DATABASES |
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USE mycluster |
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SHOW SERVERS |
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INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.67,disk=0.20 |
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INSERT cluster,host=serverB,region=us_west cpu=0.50,mem=0.99,disk=0.30 |
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INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.60,disk=0.20 |
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INSERT cluster,host=serverB,region=us_west cpu=0.53,mem=0.97,disk=0.29 |
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INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.70,disk=0.21 |
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INSERT cluster,host=serverB,region=us_west cpu=0.50,mem=0.80,disk=0.22 |
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SELECT * FROM cluster |
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SELECT * FROM cluster WHERE host='serverA' |
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</pre> |
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# Ajouter un graphique avec la requête SELECT * FROM cluster WHERE host='serverA' |
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# Ajouter un graphique avec la requête SELECT cpu FROM cluster WHERE host='serverA' |
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# Ajouter un graphique avec la requête SELECT cpu FROM cluster WHERE host='serverB' |
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# Ajouter un dashboard |
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# Ajouter les graphiques existants au dashboard |
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# Tester l’affichage dynamique des graphiques en ajoutant des entrées à la série cluster depuis le shell d’influx |
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<pre> |
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INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.30,disk=0.10 |
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INSERT cluster,host=serverB,region=us_west cpu=0.50,mem=0.95,disk=0.50 |
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INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.60,disk=0.20 |
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INSERT cluster,host=serverB,region=us_west cpu=0.53,mem=0.97,disk=0.19 |
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INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.60,disk=0.21 |
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INSERT cluster,host=serverB,region=us_west cpu=0.40,mem=0.80,disk=0.4 |
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</pre> |
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==Utilisation en continu== |
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Exécuter les 2 scripts Node.js suivants dans 2 terminaux. |
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<pre> |
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npm install mqtt |
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npm install influxdb |
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</pre> |
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<pre> |
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node mqtt2influxdb.js |
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</pre> |
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<pre> |
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node mqttpub.js |
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</pre> |
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mqtt2influxdb.js |
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<pre> |
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// MQTT to InfluxDB bridge |
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// (c) Didier DONSEZ, 2015-2016 |
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// Tested with InfluxDB v0.9 |
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var mqtt = require('mqtt') |
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var influx = require('influx'); |
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var mqtt_url = 'mqtt://test.mosquitto.org'; |
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var topic = 'test/influxdb'; |
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var dbhost = 'localhost'; |
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var database = 'xnet'; |
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var username = 'root'; |
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var password = 'root'; |
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var seriesName = 'cluster'; |
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var tags = { "host":"serverA","region":"us_west"}; |
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var dbInflux = influx( { |
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// single-host configuration |
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host : dbhost, |
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port : 8086, // optional, default 8086 |
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protocol : 'http', // optional, default 'http' |
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username : username, |
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password : password, |
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database : database |
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}) |
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client = mqtt.connect(mqtt_url); |
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client.on('connect', function () { |
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console.log("Connected to " + mqtt_url); |
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client.subscribe(topic).on('message', function (topic, message) { |
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var date=new Date(); |
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console.log(date.toISOString()+" <-- "+ message); |
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var values = JSON.parse(message); |
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values.time = date; |
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dbInflux.writePoint(seriesName, values, tags, function(err, response) { if(err) throw err; }) |
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}); |
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// TODO add other event handlers here |
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}); |
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console.log("MQTT to InfluxDB bridge is started"); |
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</pre> |
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mqttpub.js |
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<pre> |
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var mqtt = require('mqtt') |
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var mqtt_url = 'mqtt://test.mosquitto.org'; |
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var topic = 'test/influxdb'; |
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var publishing_period = 1000; // in ms |
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client = mqtt.connect(mqtt_url); |
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//client.subscribe(topic); |
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var mem = Math.random(); |
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var disk = Math.random(); |
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var cpu; |
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function publish() { |
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mem = mem+(Math.random()/10)-0.05; |
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if(mem<0) { mem=0 }; |
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if(mem>1) { mem=1 }; |
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disk = disk+(Math.random()/20)-0.025; |
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if(disk<0) { disk=0 }; |
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if(disk>1) { disk=1 }; |
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cpu = Math.random(); |
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var message= { |
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cpu: cpu, |
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mem: mem, |
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disk: disk, |
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}; |
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client.publish(topic, JSON.stringify(message)); |
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console.log(new Date().toISOString()+" --> "+ JSON.stringify(message)); |
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setTimeout(publish, publishing_period); |
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} |
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publish(); |
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console.log("MQTT publishing is started"); |
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</pre> |
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=Utilisation avancée avec [[Telegraf]]= |
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TODO |
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=Arret de Chronograf= |
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<pre> |
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sudo service chronograf stop |
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</pre> |
Latest revision as of 10:48, 4 February 2016
Interface de visualisation de séries temporelles stockées dans une base de données InfluxDB. Permet de créer des dashboards à partir des graphiques définis.
https://influxdata.com/time-series-platform/chronograf/
Installation
Il faut préalablement installer InfluxDB.
wget https://s3.amazonaws.com/get.influxdb.org/chronograf/chronograf_0.10.0-rc2_amd64.deb sudo dpkg -i chronograf_0.10.0-rc2_amd64.deb
Si besoin, Configurer Chronograf en éditant le fichier /opt/etc/chronograf.toml
Démarrer Chronograf
sudo service chronograf start ps wwwax | grep chronograf
Remarque: Chronograf stocke ses informations dans ~/chronograf.db
Utilisation
Naviguer sur https://localhost:10000/
- Ajoutant des entrées à la série cluster depuis le shell d’influx
CREATE DATABASE mycluster SHOW DATABASES USE mycluster SHOW SERVERS INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.67,disk=0.20 INSERT cluster,host=serverB,region=us_west cpu=0.50,mem=0.99,disk=0.30 INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.60,disk=0.20 INSERT cluster,host=serverB,region=us_west cpu=0.53,mem=0.97,disk=0.29 INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.70,disk=0.21 INSERT cluster,host=serverB,region=us_west cpu=0.50,mem=0.80,disk=0.22 SELECT * FROM cluster SELECT * FROM cluster WHERE host='serverA'
- Ajouter un graphique avec la requête SELECT * FROM cluster WHERE host='serverA'
- Ajouter un graphique avec la requête SELECT cpu FROM cluster WHERE host='serverA'
- Ajouter un graphique avec la requête SELECT cpu FROM cluster WHERE host='serverB'
- Ajouter un dashboard
- Ajouter les graphiques existants au dashboard
- Tester l’affichage dynamique des graphiques en ajoutant des entrées à la série cluster depuis le shell d’influx
INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.30,disk=0.10 INSERT cluster,host=serverB,region=us_west cpu=0.50,mem=0.95,disk=0.50 INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.60,disk=0.20 INSERT cluster,host=serverB,region=us_west cpu=0.53,mem=0.97,disk=0.19 INSERT cluster,host=serverA,region=us_west cpu=0.64,mem=0.60,disk=0.21 INSERT cluster,host=serverB,region=us_west cpu=0.40,mem=0.80,disk=0.4
Utilisation en continu
Exécuter les 2 scripts Node.js suivants dans 2 terminaux.
npm install mqtt npm install influxdb
node mqtt2influxdb.js
node mqttpub.js
mqtt2influxdb.js
// MQTT to InfluxDB bridge // (c) Didier DONSEZ, 2015-2016 // Tested with InfluxDB v0.9 var mqtt = require('mqtt') var influx = require('influx'); var mqtt_url = 'mqtt://test.mosquitto.org'; var topic = 'test/influxdb'; var dbhost = 'localhost'; var database = 'xnet'; var username = 'root'; var password = 'root'; var seriesName = 'cluster'; var tags = { "host":"serverA","region":"us_west"}; var dbInflux = influx( { // single-host configuration host : dbhost, port : 8086, // optional, default 8086 protocol : 'http', // optional, default 'http' username : username, password : password, database : database }) client = mqtt.connect(mqtt_url); client.on('connect', function () { console.log("Connected to " + mqtt_url); client.subscribe(topic).on('message', function (topic, message) { var date=new Date(); console.log(date.toISOString()+" <-- "+ message); var values = JSON.parse(message); values.time = date; dbInflux.writePoint(seriesName, values, tags, function(err, response) { if(err) throw err; }) }); // TODO add other event handlers here }); console.log("MQTT to InfluxDB bridge is started");
mqttpub.js
var mqtt = require('mqtt') var mqtt_url = 'mqtt://test.mosquitto.org'; var topic = 'test/influxdb'; var publishing_period = 1000; // in ms client = mqtt.connect(mqtt_url); //client.subscribe(topic); var mem = Math.random(); var disk = Math.random(); var cpu; function publish() { mem = mem+(Math.random()/10)-0.05; if(mem<0) { mem=0 }; if(mem>1) { mem=1 }; disk = disk+(Math.random()/20)-0.025; if(disk<0) { disk=0 }; if(disk>1) { disk=1 }; cpu = Math.random(); var message= { cpu: cpu, mem: mem, disk: disk, }; client.publish(topic, JSON.stringify(message)); console.log(new Date().toISOString()+" --> "+ JSON.stringify(message)); setTimeout(publish, publishing_period); } publish(); console.log("MQTT publishing is started");
Utilisation avancée avec Telegraf
TODO
Arret de Chronograf
sudo service chronograf stop