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Java Melody

The goal of JavaMelody is to monitor Java applications in production environments. It is a tool to measure and calculate statistics on real operation of an application depending on the usage of the application by users.

This post go through the configuration needed in a Grails application, we are going to use Grails 3.3.5 version, so let’s create a new fresh Grails project:

grails create-app grails-java-melody

NOTE: If you want to know what tools you need to have installed in yout computer in order to create a Grails basic project, please refer my previous post: Grails Hello World

Installation

To install the plugin, just add Grails dependency in your build.gradle file:

dependencies {
  compile 'org.grails.plugins:grails-melody-plugin:1.72.0'
}

Then you will be able to monitor the application at http://localhost:8080/monitoring.

Result

More configuration

If you need to disable JavaMelody monitoring add this lines to your grails-app/conf/application.yml:

javamelody:
  disabled: true

Also all parameters described in the JavaMelody User’s guide can be configured in your grails-app/conf/application.yml file. You can also add rules in your grails-app/conf/application.groovy for the spring security plugin, if installed:

grails.plugin.springsecurity.controllerAnnotations.staticRules = [ [pattern: '/monitoring', access: ['ROLE_ADMIN']] ]

To download the project:

git clone https://github.com/josdem/grails-java-melody.git

To run the project:

grails run-app

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