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LearningMilestone by Anuradha Agarwal is a one-stop place for coding classes for kids and workshops for teachers and parents and self-paced courses, a blog for everyone to learn python programming with a personalized approach by an experienced instructor with a decade of experience in the software industry.

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Real Time Monitoring using Gatling with InfluxDB

In this post, I will be taking you through end to end steps to set up real time monitoring solution for Gatling open source using InfluxDB & Grafana.

To visit more such posts, follow: #RealTimeMonitoring #PerformanceTesting

This post assumes that you have InfluxDB & Grafana instance setup.

To learn from scratch, visit posts:

Also, it assumes you have Gatling development environment in place with sample script.Else visit below post:

By default, gatling open source gives report at the end of test run.To facilitate, real time monitoring gatling needs to be configured to send data to influxDB and influxDB needs to be configured to receive data from gatling.This is what we will be doing in our steps.Here in this demo, InfluxDB and Gatling are on same window machine .


Step1 - Configure gatling.conf

Step 2 - Configure influxdb.conf

Step 3 - Restart InfluxDB

Step 4 - Run Gatling test

Step 5 - Verify Measurements in InfluxDB

Step 6 - Configure datasource & view graph in Grafana

Gatling comes with inbuilt Graphite data writer that helps to write data to carbon database which comes with graphite and also to Influxdatabase which uses graphite plugin to recieve data.

By default, graphite configuration is diasbled in gatling.conf and needs to be enabled to send metrics to the time-series database.

  • We have already created gatling project & copied sample script from gatling site in this post.

  • So we have:

  • Configuring gatling.conf for the purpose is a two step process:

  1. Update list of data writers.Default writers are console & file.Uncomment writers in conf and append graphite to the list

  2. Uncomment graphite configuration in gatling.conf and give InfluxDB ip address.It is localhost in our case

  • InfluxDB comes up with Graphite plugin which is by default disabled in influxdb.conf.

  • Update graphite section in influxdb with following entries

  • As also specified in post, influx db needs to be restarted with below command.

influxd -config influxdb.conf 2><location of logfile>\logfile.log 
  • In this command, I have redirected output to logfile.log so that I can easily verify that graphite service is started

Below should be there in the logfile to indicate same:

  • Here we will simply be running test from ide itself:

  • Connect to Influx CLI

  • Perform command to show databases

  • You should see gatlingdb created

  • Connect to gatlingdb with use <dbname>

  • Perform show measurement command to see measurements added

You will find data points when select query is run:

  • As shown the steps in this post , configure data source in grafana and view graphs:

Below is the view, its not much data but just a representation to show.Customizations can be done in grafana:


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