A common issue with Low heap size is an out-of-memory error. If you are deploying a very large application using the administrative console, it can fail with out-of-memory error. In this case, you need to increase the maximum Java heap size value of the Deployment Manager and the Node Agent.
How do you change the Java heap size settings?
The JVM heap size settings can be changed from the administrative console using these steps:
Expand Servers > Server Types > WebSphere application servers and click your server name.
Click Java and process management > Process definition > Java virtual machine.
The JVM Heap size can be adjusted by using the Xms: Initial Java Heap Size and Xmx: Maximum Java Heap Size command-line parameters.
We also can add -Xss512m parameter to java args
How do you change the Java heap size settings?
The JVM heap size settings can be changed from the administrative console using these steps:
Expand Servers > Server Types > WebSphere application servers and click your server name.
Click Java and process management > Process definition > Java virtual machine.
The JVM Heap size can be adjusted by using the Xms: Initial Java Heap Size and Xmx: Maximum Java Heap Size command-line parameters.
We also can add -Xss512m parameter to java args
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