This page is deprecated. Refer to the Host anomaly detection page. All updates and new information will be added there.
Dynatrace infrastructure monitoring is based on numerous built-in, predefined static thresholds. These thresholds relate to resource contentions like CPU spikes, memory, and disk usage. You can change these default thresholds in Settings > Anomaly Detection > Infrastructure.
For applications and services, you can disable automated baselining-based reference-value detection anytime and switch to user-defined static thresholds. If you set a static threshold for response time and error rate on an application or service level, events will be raised if the static threshold is breached. A slowdown event is raised if the static thresholds for either the median or the 90th percentile response times are breached.
| Hosts | Default static threshold |
|---|---|
CPU saturation | Alert if CPU usage is higher than 95% in 18 of 30 10-second intervals. |
Memory event usage |
|
GC activity |
|
Java out of memory | Alert if the number of Java out-of-memory exceptions is 1 per minute or higher. |
AIX High System Load | OneAgent version 1.261+ Alert if the System Load is higher than the defined threshold for the defined amount of samples. This alert is specific to AIX hosts. |
| Network | Default static threshold |
|---|---|
Number of dropped packets |
|
Network utilization | Alert if sent/received traffic utilization is higher than 90% in 18 of 30 10-second intervals. |
TCP connectivity for process |
|
Retransmission rate |
|
| Disk | Default static threshold |
|---|---|
Low disk space | Alert if free disk space is less than 3% in 18 of 30 10-second intervals. |
Slow running disks | Alert if disk read time or write time is higher than 200 ms in 18 of 30 10-second intervals. |
Inodes number available | Alert if percent of available inodes is less than 5% in 18 of 30 10-second intervals. |
As static thresholds don't adapt to changing environments and require too much manual effort, Dynatrace also offers intelligent, automated multi-dimensional baselining, which works out of the box, without manual configuration of thresholds. Most importantly, it adapts automatically to changes in traffic patterns.