How to debug deployed Grails application

Question

Is there any way to debug Grails application deployed to production server in Intellij IDEA or any other IDE?

Answer 1

You need to start your server in debug mode by adding something like this to the java process start script:

-Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n

Then in IntelliJ open Run > Edit Configurations and select Defaults > Remote, where you can set the port you specified above to debug the remote JVM.

You can do the same in Eclipse.

Answer 2

Also you can use grails-debug run-app to debug Grails application. But I think it's not good choice for production

Answer 3

Also, starting from grails 2.3.0 the jvm is forked into the build vm and the application vm. Using --debug allow you to debug the build vm, and using --debug-fork allows you to debug the app vm. Grails 2.3 forked execution