Adjust the sensitivity of anomaly detection for infrastructure
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- How-to guide
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Dynatrace detects multiple infrastructure-related performance anomalies that might lead to problems with your infrastructure (the particular list depends on the type of your infrastructure). Each anomaly type is detected independently and triggers related problems and alerts.
To adjust the global configuration of anomaly detection for infrastructure
- Go to Settings > Analyze and alert > Alerts.
- In the Infrastructure section, select the infrastructure type for which you want to configure anomaly detection.
Anomaly detection can be configured for all hosts monitored by Dynatrace regardless of their type (physical or virtual). Dynatrace also detects network and disk problems of your hosts.
For each anomaly type, you can either select automatic detection to rely on Dynatrace Intelligence to alert you about problems, or you can provide a fixed threshold. Just select the required option from the respective list.
By default, Dynatrace alerts only about unexpected outages.
- During a graceful shutdown, the host outage is expected and the operating system has sent a shutdown signal notifying OneAgent that an operator is intentionally shutting down the host.
- If OneAgent receives no shutdown signal, the shutdown is classified as unexpected.
You can opt-in to receive notifications about graceful shutdowns as well.
Thresholds for a specific host group
To configure the disk rules for a specific host group
- Go to Deployment Status.
- Filter the table by Host group and select the name of the host group for which you want to configure custom disk-detection rules.
- For one of the listed hosts, select the host group.
- Expand Anomaly detection and select Custom disk-detection rules.
- Select Add item.
- Select the metric to be monitored and provide a meaningful name for the rule.
- Specify the threshold for the metric and the number of samples that must violate the threshold to trigger an alert.
- Optional Specify the name pattern of the disk.
- Optional To further narrow down the disk usage, list the tags that the host must have.
- Select Save changes.
Thresholds for a specific host
As an alternative to defining thresholds globally across your entire environment, you can provide fine-tuned thresholds for individual hosts. Host-level thresholds override global thresholds for the host, while global settings still apply to other hosts. You can revert to globally defined thresholds at any time.
To change threshold settings for a specific host
- Go to
Hosts Classic. - Select the host you want to configure.
- In the upper-right corner of the page, select More (…) > Settings.
- Go to Anomaly detection > Infrastructure to customize the configuration.