JVM Heap size settings

[kalyanmiddleware]

Hi All,

If i want to define JVM settings where environment is having 3 server groups each server group consists of 3 servers  what is the best method to define JVM heap size.

And iam using standalonefull-ha profile i need to define heapsize in standalone.conf ?

or any method is there?

With Regards,

kalyan.

[mnovak]

It seems that you want to start servers in domain mode. Where you will define 3 server groups with 3 server each.

This can be configured in domain.xml for each server group in:

<server-groups>
        <server-group name="main-server-group" profile="full">
            <jvm name="default">
                <heap size="1000m" max-size="1000m"/>
            </jvm>
            <socket-binding-group ref="full-sockets"/>
        </server-group>
       

Or in host.xml if you need to set it up for each server in server group.

[wdfink]

As Miroslav mentioned you are able to define jvm settings in different places.

The are inherited; domain-default - host-default - server-group - server.

So for each you can add or modify the settings. I recommend to use the server group if you cluster servers. Because each server should be able to perform similar otherwise it will be complicated to adjust load-balancing.

For the standalone mode you need to modify standalone.conf as these settings are needed for the JVM startup, so the xml config will be too late