25.5. Troubleshooting

25.5.1. About Troubleshooting Amazon EC2

EC2 provides an Alarm Status for each instance, indicating severe instance malfunction but the absence of such an alarm is no guarantee that the instance has started correctly and services are running properly. It is possible to use Amazon CloudWatch with its custom metric functionality to monitor instance services' health but use of an enterprise management solution is recommended.
To simplify troubleshooting, Red Hat recommends managing the EC2 instance using JBoss Operations Network (JON) which can automatically discover, monitor and manage many services on an EC2 instance with the JON agent installed, including: JBoss EAP 6, Tomcat, Apache HTTP Server, and PostgreSQL. For details of monitoring JBoss EAP with JON, see Section 25.3.1, “About AMI Monitoring”.