Setting JVM Options

Remarks#

-bundle.zip         //--> bundle file which will be uploaded
|--.ebextensions     //--> the file name must be exactly ".ebextensions"
   |--jvm.config    //--> config file that will set the JVM options on deployment (upload)
|--java_app.jar     //Here, I am using Spring Boot

option_settings:                                  //--> must have line
  aws:elasticbeanstalk:application:environment:   //--> namespace used to set JVM values
    XX:MaxPermSize: 256m                          //--> set XX:MaxPermSize to 256m
    Xmx: 1024m                                    //--> set Xmx to 1024m
    Xms: 512m                                     //--> set Xms to 512m

Setting JVM Options Via Ebextensions Config

To setup JVM options inside elastic beanstalk, your bundle file must be like this:

-bundle.zip 
|--.ebextensions //do not forget the dot at the beginning of the name
   |--jvm.config
|--java_app.jar

And, the jvm.config file must be set like this:

option_settings:                                  
  aws:elasticbeanstalk:application:environment:   
    XX:MaxPermSize: 256m                          
    Xmx: 1024m                                    
    Xms: 512m

When you upload your bundle, first those settings will be read and applied to the server’s (Ec2 instance’s) JVM and you must see the health as “OK”.

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