WildFly JVM Settings: Difference between revisions

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==Standalone Mode==
==Standalone Mode==
Modify <tt>standalone.conf</tt> as follows:


<pre>
<pre>
<server ...>
     ...
     ...
     <jvm java-home="..."
     JAVA_OPTS="-Xms1000m -Xmx2000m -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=512m ..."
            type="SUN|IBM"
            env-classpath-ignored="true"
            debug-enabled="false"
            debug-options="...">
 
        <heap size="" max-size=""/>
        <permgen>...</permgen>
        <stack>...</stack>
        <agent-lib>...</agent-lib>
        <agent-path>...</agent-path>
        <java-agent>...</java-agent>
        <jvm-options>
            <option name="...">....</option>
            ...
        </jvm-options>
        <environment-variables>...</environment-variables>
        <launch-command>...</launch-command>
    </jvm>
     ...
     ...
</server>
</pre>
Example:
<pre>
<jvm>
    <heap size="6000m" max-size="12000m"/>
    <jvm-options>
        <option value="-server"/>
        <option value="-XX:MetaspaceSize=256m"/>
        <option value="-XX:MaxMetaspaceSize=512m"/>
    </jvm-options>
</jvm>
</pre>
</pre>


Revision as of 17:44, 27 March 2017

Internal

Overview

JVM settings can be declared in the server's configuration files, as shown below, and are propagated to the server JVMs.

Configuration

Standalone Mode

Modify standalone.conf as follows: 

    ...
    JAVA_OPTS="-Xms1000m -Xmx2000m -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=512m ..."
    ...

Domain Mode

domain.xml

host.xml

host.xml allows "named" <jvm> declarations. 

<host ..>
    ...
    <jvms>
        <jvm name="jvm-a" ...>
        </jvm name="jvm-b" ...>
        ...
    </jvms>
    ...
</host>
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