Issue

OutOfMemory error makes the respective JAVA application unavailable.

Root Cause

This issue occurs when a JAVA application runs out of HEAP memory.

Resolution

Locate and open the JBoss logs in a text editor program. If you are experiencing this issue, you should be able to find the following error:

Caught unexpected Throwable: java.lang.OutOfMemoryError: Java heap space

Follow the steps below if you see the error:

1. Locate standalone.conf file. Path: <JBoss Installation Directory> > standalone > bin > standalone.conf
2. Open it in a text editor.
3. Modify the specific line allocation configuration to the following:

   -Xms1024M -Xmx2048M -MaxPermSize=512M

4. Restart JBoss to apply the new configuration.
5. Monitor the application for a while and see if the issue persists.
6. If the issue persists, please collect heap and thread dump while the issue occurs.
7. Contact our support team and attach the collected heap and thread dump into the support ticket.