how to monitor java heap memory usage in jboss eap production server

Question

I need to monitor java heap memory usage in my production server JBOSS EAP and web server nginx in order to avoid OutofMemory Error. Please suggest

Answer 1

You can use Jboss CLI to check JVM memory details,

• Connect to the JBoss using CLI:

./jboss-cli.sh -c --controller=localhost:9999

• Getting the JVM Memory details:

/core-service=platform-mbean/type=memory/:read-resource(recursive=true,proxies=true,include-runtime=true,include-defaults=true)

Or you can use JBoss management console,

• Go to Runtime tab
• Select JVM from Sytem status

Or you can use JConsole

Answer 2

For instructions on how to monitor EAP servers with VisualVM or JConsole, you can see the EAP Performance Tuning Guide: https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.1/html-single/performance_tuning_guide/#monitoring_performance

It also has sections on troubleshooting performance issues, including memory settings.