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Created September 27, 2024 00:46
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2024-jconf-java-flight-recorder.md

Troubleshooting, Monitoring, and Profiling with Java Flight Recorder, Mission Control, and Cryostat

Speaker: Jeremy Davis

Tools for Profiling Java Applications

  1. Mission Control

    • Available starting with Java 11.
    • Provides powerful tools for monitoring and profiling Java applications.

  2. Cryostat UI
    A user-friendly interface for managing and analyzing Java Flight Recorder (JFR) data:

    • Dashboard: Gives an overview of the system's performance metrics.
    • Automated Analysis: Helps diagnose performance issues.
    • Grafana: Integrates with Grafana for data visualization.
    • Automated Rules: Defines automatic actions and alerts based on system behavior.
    • Recordings: Facilitates the management of JFR recordings.
    • Archive: Allows storing recordings for later analysis.

Monitoring Java Applications

  • JMX (Java Management Extensions):
    You can expose application metrics and diagnostics by using JMX endpoints for monitoring.

  • Kubernetes (K8s):
    If running your Java applications on Kubernetes, you can install an agent to capture monitoring data more effectively.

Notes for myself

  • Look into OpenShift:
    Investigate how OpenShift can be used for managing and monitoring Java applications in containerized environments.
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