Introduction

Glowroot, an open-source Java Application Performance Management (APM) tool, provides support for monitoring Java applications.

Key aspects of Glowroot and Java compatibility

• Agent Compatibility:

  The Glowroot agent, which is attached to your Java application's JVM, is designed to work with various Java versions, including Java 21. Recent releases of Glowroot have specifically addressed and improved support for Java 21 features and performance optimizations.

• Monitoring Capabilities:

  When running on Java 21, Glowroot can monitor and provide insights into various aspects of your application's performance, such as:

  • Trace capture for slow requests and errors.
  • Continuous profiling.
  • Response time breakdown and percentile charts.
  • SQL and service call capture and aggregation.
  • JVM metrics and MBean attribute capture.

• Installation and Usage:

  The process for integrating Glowroot with a Java 21 application remains largely the same as with other Java versions. This typically involves downloading the Glowroot agent and adding it as a -javaagent argument to your application's JVM startup parameters.

Conclusion

In essence, Glowroot can be effectively used to monitor and optimize Java applications running on the Java 21 platform, leveraging its features to gain visibility into application performance and identify potential bottlenecks.