Categories of Davis events
Dynatrace supports different categories of Davis events, where each Davis event comes with an event type and a severity (significance) level.
- Resulting problems aggregate all included Davis event severities and are evaluated with the highest severity level of the constituent Davis events.
- During its lifespan, a problem might raise its severity level. For example, a problem might begin in slowdown level and then be raised automatically to availability level when an outage is detected.
In order from most to least severe, the Davis event categories supported in Dynatrace are as follows:
Monitoring unavailable
Monitoring unavailable events indicate a widespread monitoring interruption, where the majority of your installed OneAgents lose their connection with the Dynatrace server. This usually manifests itself as a lack of visibility in terms of both availability and performance monitoring.
Availability
Availability events indicate high-severity incidents within your environment, such as a complete outage or unavailability of servers or processes.
Error
Error events inform you of increased error rates or other error-related incidents that interfere with the regular operation of your environment.
Slowdown
Slowdown events indicate a decrease of performance in one of your operational services or applications.
- While slowdown events are less severe than error or availability Davis events, they inform you of potential issues with the performance of your services.
Resource
Resource events indicate resource contention. Typical examples:
- CPU saturation
- Memory saturation
Custom
Custom alerts are used to enable alerting on any user-defined thresholds.
- Custom alerts for user-defined thresholds can be set for any Dynatrace metric.
- Like other events, custom alerts can be controlled by Davis and are automatically alerted on.
Info events indicate manually triggered Davis events that don't result in the creation of a new problem, such as:
- Important deployments or configuration changes
- Administrative Davis events (for example, automatic migration of a virtual machine)
Informational Davis events aren't sent out as alerts and no problems are opened, as this category of Davis events doesn't indicate an abnormal situation.