Out-of-memory (OOM) and out-of-threads (OOT) events and alerting

To set up out-of-memory (OOM) and out-of-threads (OOT) events for standalone/PaaS scenarios and cloud-native Full-Stack injections, follow the instructions below.

Enable the OneAgent feature

Create metric events for alerting

Enable the OneAgent feature

To enable out-of-memory (OOM) and out-of-threads (OOT) detection

1. In the Dynatrace menu, go to Settings and select Preferences > OneAgent features.
2. Find and turn on Enable Out-Of-Memory and Out-Of-Thread Detection for Kubernetes and PaaS installations [Opt-In].
3. Select Save changes.

Create metric events for alerting

After you enable detection, create two metric events for alerting in case of high GC activity.

Use the following values:

• Metric event for high GC suspension time:

  • Metric key: builtin:tech.jvm.memory.gc.suspensionTime
  • Threshold: > 25%

• Metric event for high GC total collection time:

  • Metric key: builtin:tech.jvm.memory.gc.collectionTime
  • Threshold: > 40%