Jboss EAP 6.2 (Jboss 7.1.1) - how/where can be set -XX:-UseGCOverheadLimit ?

[vladislav.rames]

Hello,

I try to solve "java.lang.OutOfMemoryError: GC overhead limit exceeded" error using "-XX:-UseGCOverheadLimit" option

in JAVA_OPTS. I have this java version:

[jboss@jboss-test jboss-as-7.1.1.Final]$ java -version

java version "1.6.0_28"

OpenJDK Runtime Environment (IcedTea6 1.13.0pre) (rhel-1.66.1.13.0.el6-i386)

OpenJDK Client VM (build 23.25-b01, mixed mode)

I've tried to add this option to JAVA_OPTS in domain.conf:

...

#

# Specify options to pass to the Java VM.

#

JAVA_OPTS="$JAVA_OPTS -XX:-UseGCOverheadLimit"

...

Then I have restarted jboss, I can see this in logfile:

=========================================================================

  JBoss Bootstrap Environment

  JBOSS_HOME: /opt/jboss/jboss-as-7.1.1.Final

  JAVA: java

  JAVA_OPTS: -Xms128m -Xmx256m -XX:MaxPermSize=64m -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -Djboss.domain.default.config=domain.xml -Djboss.host.default.config=host.xml -XX:-UseGCOverheadLimit

=========================================================================

But when I try to grep java processes, It hasn't had those option. Where I did a mistake, please?

Thanks in advance.

[wdfink]

I suppose you want to set the Java option for the server processes.

In this case you need to add it to the <jvm ...> configuration inside the domain.xml or host.xml.

See for example this doc Domain Setup - JBoss AS 7.1

The domain.conf is used for the start process i.e. domain/host/process controller, not for the server JVM

[vladislav.rames]

Thank you for your post. You are right, I need to set Java option for server JVM.

I've found only settings "heap size" (~Xms), "heap max size" (~Xmx), "permgen size"

(~-XX:PermSize) and "max permgen size" (~-XX:MaxPermSize) in documentation

noticed above. How can I set generic JAVA_OPTS settings for JVM server, please?

----------------------------------------------------------

Update:

I've found it just now - it's jvm-options tag in host.xml or domain.xml,

it's described nicely for example in https://docs.newrelic.com/docs/java/jboss-installation-for-java#above-v6-domain.

So, in my case, I've used this in host.xml:

...

    <servers>

        <server name="server-be" group="server-group-be" auto-start="true">

            <jvm name="jvm-be">

                <heap size="1024m" max-size="1024m"/>

                <permgen size="256m" max-size="384m"/>

                    <jvm-options>

                        <option value="-XX:-UseGCOverheadLimit"/>

                    </jvm-options>

            </jvm>

        </server>

...

It seems it wors properly. Hopefully it can be usefull for somebody.