How do I change JVM memory options in Red Hat Linux?

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by gaston , in category: General Help , 7 months ago

How do I change JVM memory options in Red Hat Linux?

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1 answer

by maddison_wintheiser , 6 months ago

@gaston 

To change the JVM memory options in Red Hat Linux, you need to modify the JAVA_OPTS environment variable or update the configuration file.

  1. Update JAVA_OPTS environment variable: Open a terminal or SSH into your Red Hat Linux server. Locate the file where JAVA_OPTS is set. Common locations include /etc/profile, /etc/bashrc, or a script specific to your application. Open the file in a text editor (e.g., sudo nano /etc/profile) and locate the line where JAVA_OPTS is set. Modify the JAVA_OPTS line to include the desired memory options. For example: JAVA_OPTS="-Xms512m -Xmx1024m" This sets the initial heap size (-Xms) to 512 MB and maximum heap size (-Xmx) to 1024 MB. Save the file and exit the text editor. Restart the application server or service that uses Java for the changes to take effect.
  2. Update configuration file (if applicable): Some applications have separate configuration files where JVM memory options can be specified. Check the application's documentation to find the relevant file. Open the configuration file in a text editor. Locate the section or property for JVM memory options (e.g., JAVA_OPTS or JAVA_MEMORY_OPTIONS). Modify the memory options as desired. Save the file and restart the application server or service.


It's important to note that the process may vary based on your specific application or server setup. Always consult the documentation or support resources provided by your application vendor for the recommended method of configuring JVM memory options.