Transactions and services

Web and mobile applications are built upon services that process requests like web requests, web service calls, and messaging. Such "server-side services" can take the form of web services, web containers, database requests, custom services, and more. Services may in turn call other services.

Processes are essentially containers that host services. When you look at processes, you're seeing topology information, whereas services give you code-level insight. For example, you might have a Tomcat process that hosts a web application in the form of a server-side service. While processes are host-centric, associated with a single machine in your environment, services are request-centric and therefore typically span multiple machines in a data center.

Monitoring begins automatically as soon as OneAgent starts operation and you restart all of your application's server processes. OneAgent captures performance and event-related information in your application environment and forwards it to Dynatrace. The information is then displayed on the Service health dashboard tile.

Database calls that are made through monitored Java processes are monitored automatically, so there's no need to perform any configuration steps (including deep monitoring setup) on dedicated database server machines in your environment. Just make sure that OneAgent is installed on the host that runs your application server and Dynatrace will take care of the rest.

Dynatrace provides you with deep visibility into the performance of all the services that comprise your web application: web services, web containers, database requests, custom services, and more. You can even track service performance over time, with both historical and up-to-the-moment data.

During initial monitoring setup, once you've restarted all server processes that are eligible for deep monitoring, you don't need to perform any extra configuration. Dynatrace automatically discovers all the services, methods, and database statements that run on the servers that you've set up for monitoring (servers that have been discovered and are fully monitored are displayed during monitoring setup with the status Monitored). OneAgent, on a transactional level, sees and reports all requests that are sent to the software component that you're monitoring. As a result, Dynatrace is able to capture accurate response times and failures rates and associate these metrics with the processes, hosts, real users, and other called services.

If any processes of supported technologies, such as Java, are started following OneAgent installation, those processes are monitored automatically.