Chapter 3. Automatic starting of a dynamic JFR recording

When the Cryostat agent is enabled to start JFR recordings and the custom trigger condition for a dynamic recording is met, the Cryostat agent automatically starts the recording from within the target application.

The Cryostat agent automatically assigns a name to the JFR recording, which is always in a cryostat-smart-trigger-X format, where X represents the recording ID. The JVM automatically generates the recording ID, which is an incremental numeric value that is unique for each JFR recording that is started within the JVM.

When the Cryostat agent starts a dynamic JFR recording, you can subsequently view this recording in the Active Recordings tab in the Cryostat web console. For more information about using the Active Recordings tab, see Creating a JFR recording with Cryostat.