DataDog and JMX

External

• http://docs.datadoghq.com/integrations/java/

Internal

• DataDog

Configuration

The JMX configuration is located in /etc/dd-agent/conf.d/jmx.yaml.example.

After modification and removal of the ".example" suffix, restart datadog as root:

service datadog-agent restart

JMX integration with JBoss

Server Preparation

JBoss instances have to be configured to allow JMX agent access. Details on how to configure JBoss various JBoss versions running in various modes are available here:

WildFly and JMX

Agent Classpath and Startup Options

The agent must include the following classpath:

-Djava.class.path=${JAVA_HOME}/lib/jconsole.jar:${JAVA_HOME}/lib/tools.jar:${JBOSS_HOME}/bin/client/jboss-cli-client.jar

The agent must also receive the following system property on command line:

-Dmodule.path=${JBOSS_HOME}/modules

The full command line is:

jconsole \
 -J-Djava.class.path=${JAVA_HOME}/lib/jconsole.jar:${JAVA_HOME}/lib/tools.jar:${JBOSS_HOME}/bin/client/jboss-cli-client.jar \
 -J-Dmodule.path=${JBOSS_HOME}/modules

Connect to the JBoss Instance

Use the following URLs:

• For Standalone EAP 6
• For EAP 6 Host Controller
• For EAP 6 Domain Mode Server Node
• For Standalone EAP 7
• For EAP 7 Host Controller
• For EAP 7 Domain Mode Server Node

Troubleshooting

Agent Process Signature

ps -ef | grep java | grep datadog

dd-agent 14889 14841  0 Oct15 ? 00:05:47 \
  /opt/jdk/bin/java -Xms50m -Xmx200m \
  -classpath /opt/jdk/lib/tools.jar:/opt/datadog-agent/agent/checks/libs/jmxfetch-0.11.0-jar-with-dependencies.jar org.datadog.jmxfetch.App \
  --check jmx.yaml --check_period 15000 --conf_directory /etc/dd-agent/conf.d --log_level INFO \
  --log_location /var/log/datadog/jmxfetch.log --reporter statsd:localhost:8125 
  --status_location /opt/datadog-agent/run/jmx_status.yaml collect

Agent Reinitialization

service datadog-agent restart