AppDynamics End User Monitoring (EUM) gives you visibility on the performance of your application from the viewpoint of the end-user.
While Application Performance Monitoring (APM) measures user interaction starting at the web server or application server entry point, EUM extends that visibility all the way to the web browser, mobile, or IoT application. As a result, EUM reveals the impact the network and browser rendering time have on the user experience of your application.
The diagram below provides an overview of the different components, deployment models (SaaS/on-premises), and the Controller UI as seen by AppDynamics end users. The SaaS deployment uses services (Controller Service, Events Service, EUM Service, EUM Synthetic Monitoring Service) to collect, store, and process data. The on-premises deployment requires DevOps to install discrete components such as the Controller and servers (Events Server, EUM Server) to collect, store, and process data.
How EUM Works
Step Description Component(s)
The Browser, Mobile, and IoT Agents run in end-user applications, collect metrics, and then transmit that data to either a SaaS or an on-premises deployment of AppDynamics.
- Browser/Mobile/IoT Apps
- EUM Agents
The SaaS Cloud stores, processes, and analyzes data, and then delivers EUM metrics to the Controller UI.
- Controller Service: stores data and metadata, makes calls to the EUM Server for raw data and to the Events Service for analytics data
- Events Service: stores short-term EUM data (sessions, network requests, snapshots, etc.) for heavier analysis
- EUM Service: verifies, aggregates, and packages raw app metrics
- EUM Synthetic Monitoring Service: schedules and executes Browser Synthetic jobs and returns session data to the Controller
The on-premises deployment has most of the same components and data as the SaaS model. DevOps installs and administers their own Controller, Events Service, and EUM Server. The EUM Synthetic Monitoring Service and sessions data, however, are not available in the on-premises deployment.
- Events Server
- EUM Server
See the descriptions for each component above in step 2. The EUM Server performs the same functions as the EUM Service.
Users can go to the Controller UI to view and analyze EUM metrics as snapshots, pages, Ajax requests, sessions, network requests, or in the form of charts and graphs.
- Controller UI
Understand End User Activity
Using EUM, you can determine:
- Where geographically your heaviest application load is originated
- Where geographically your slowest End User response times occur
- How performance varies by
- client type, device, browser and browser version, and network connection for web requests
- application and application version, operating system version, device, and carrier for mobile requests
- What your slowest web/Ajax requests are, and where the problem may lie
- What your slowest mobile and IoT network requests are, and where the problem may lie
- How application server performance impacts the performance of your web and mobile traffic
- Whether your mobile or IoT applications are experiencing errors or crashes and the root cause of the issues. For example, for mobile applications, EUM provides stack traces and event trails for the crash or error, helping you troubleshoot and optimize mobile applications.
View EUM Data
The performance information generated by EUM is distinct from the application monitoring data generated by app server agents.
EUM data appears in various locations in the Controller UI, including in the User Experience dashboard, Metric Browser, and AppDynamics Analytics pages.
When linked to application business transactions, EUM data gives you a complete view of your end users' experience from the client request, through the application environment, and back to the client as the user response.
You can view EUM performance data in the Controller UI in the User Experience tab. From there, you can access information specific to browser applications, mobile applications, or connected devices (IoT applications).
On-Premises EUM Deployments
By default, EUM is configured to use an AppDynamics-hosted component called the EUM Cloud. For a fully on-premises installation, the EUM Server provides the functionality of the EUM Cloud. For information, see EUM Server Deployment.
Some functionality for EUM depends on the AppDynamics Platform Events Service. In a SaaS environment, this is managed by AppDynamics, but it is also possible to use this functionality in an on-premises form.
To host the Events Service on-premises, see:
If you are adding EUM to an existing on-premises Controller installation, you should evaluate your current configuration's ability to handle the additional load imposed by EUM. For more information, see Additional Sizing Considerations.
Access the SaaS EUM Server
The SaaS EUM Server consists of the components listed below. Each component may have different endpoints depending on the region of your Controller.
- Events Service - The EUM Server sends analytics data to the Events Service. The Controller also queries the Events Service.
- Synthetic Services - The Synthetic Private Agent and Synthetic Hosted Agent send data to the Synthetic Services.
If your SaaS or on-premises deployment requires access to any of these components on the Internet, make sure the URLs given in SaaS Domains and IP Ranges are accessible from your network.
How EUM Works with other AppDynamics Products
This section describes how other App iQ Platform products work with EUM to provide complete, full visibility on application health and user experience.
EUM and Application Performance Monitoring
Using APM with EUM provides you with greater insight into how the performance of your business application affects the end-user experience. To integrate APM with EUM, you correlate business transactions with browser snapshots. This enables you to trace bad user experiences to issues with your backends such as an unresponsive web service, bad database query, or slow server response. To learn how to integrate APM with EUM, see Correlate Business Transactions for EUM.
You must assign unique names to EUM applications and business applications. For example, if you created the business application "E-Commerce", you cannot create a browser, mobile, or IoT application with that same name or vice versa.
EUM and Application Analytics
AppDynamics Application Analytics enables you to use the powerful AppDynamics Query Language (ADQL) to analyze different types of EUM data through complex queries. The Analytics components are based on the Events Service, which is also the source of data for Browser Analyze, Crash Analyze, Network Requests Analyze, and all IoT data. Analytics requires a license separate from the EUM licenses except for IoT Monitoring.
For more information on the type of user monitoring you interested in, see:
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