Configuring Heap Sizes and JVM Settings

This section describes how to configure heap sizes and JVM settings for IBM WebSphere Application Server using the Administrative Console.

Ensure the IBM WebSphere Application Server is started.
Enter the following URL in a browser to access the IBM WebSphere Application Server Administrative Console:
```
http://localhost:port/ibm/console/login.do
```
where:

localhost

Is the name the system that is hosting IBM WebSphere Application Server.

port

Is the configured port number where the IBM WebSphere Application Server is listening.
Configure the heap size for the server by performing the following steps:
1. From the Servers section on the left pane, expand Server Types, click WebSphere application servers, and then on the right pane, click the name of an available server (for example, server1) in the Application servers section.
2. In the Server Infrastructure section, expand Java and Process Management and click Process definition, as shown in the following image.
  
  The Process definition pane opens, as shown in the following image.
3. In the Additional Properties section, click Java Virtual Machine.
Set the following properties:
- Initial heap size: 512
- Maximum heap size: 1024 (or more if required)
Configure the JVM settings by performing the following steps:
1. From Application servers, click server, Java Process Management, select Process Definition, click Java Virtual Machine, and then set Generic JVM arguments to:
```
-Xverify:none
```
2. From Application servers, click server, Java Process Management, select Process Definition, click Java Virtual Machine, and then Custom Properties.
  Add the following custom property:
```
com.ibm.ws.classloader.getInputStream.enableIOException
```
  Set this custom property value to true.
3. From Application servers, click server, Select Web container, and then click Custom Properties.
  Add the following custom property:
```
com.ibm.ws.webcontainer.invokeFiltersCompatibility
```
  Set this custom property value to true.