In terms of monitoring, an "event" is a change in application state in the managed environment that may require attention. AppDynamics reports all monitoring events for an application in the application Events List.
To access the Application Events list, select Events from the left navigation pane. Learn more about a specific event by selecting it from the list and viewing its details. The events that occurred within the period indicated by the time range dropdown menu appear in the Events List.
A large number of internal events are part of the normal data flow within AppDynamics and are not surfaced through the UI. (They can, however, be fetched via the REST API.) A subset of these events provide an indication that something has happened that may require your attention. The events of this subset are automatically surfaced in the UI and are what is meant by "events" as discussed in this section.
AppDynamics also summarizes events for business transactions, tiers, and nodes. You can view these events in the Events tab of the business transaction, tier or node dashboards.
You can use events in policies to link health rule violations, and other performance-based events, with appropriate actions. See Alert and Respond.
Normally events are purged after a configurable time - by default, this is two weeks. To save an event beyond the normal snapshot lifespan – for example, if you want to make sure an event associated with a particular problem is retained for future analysis – archive the event.
Customers with on-premise controllers can modify the default two-week period by configuring the events.retention.period property in the Controller Settings section of the Administration console.
To archive an event
- Display the Events list.
- Select one or more events.
- Right-click the event or use More Actions to see the Archive option.
To view archived events in the Events list
- Sort on the far right column. All archived events are displayed together.
- When you view your Events list, a small icon in the far right column indicates that an event has been archived.
You can create email digests to notify recipients when specific events occur. See Email Digests.
Start a Virtual War Room
You can start a Virtual War Room from the events list in two ways:
- Select an event and use the Start War Room option from the Actions dropdown list:
- Select an event and right-click to see the Start War Room option: