My Oracle Support Banner

OUD Performance Troubleshooting - Examples for How to Setup and Enable Java Flight Recorder (JFR) (Doc ID 2097394.1)

Last updated on APRIL 07, 2025

Applies to:

Oracle Unified Directory - Version 11.1.2.2.2 and later
Information in this document applies to any platform.

Goal

Oracle recommends setting up Java Mission Control with Java Flight Recorder - JFR to monitor the systems on an ongoing basis while having the lowest possible impact on the running system. This is a best practice to supplement the OUD standard data collection of RDA data collection and logs. It provides constant monitoring of the java layer over a rolling period of time, at a lower level than that captured in logs or from jstack snapshots collected by RDA. Since it will cover a period of time (an hour or more) and at greater depth, it is much more likely to capture the java activity leading up to an issue which, in turn, will increase the possibility of identifying the root cause and solution.

Java Mission Control white paper
Java Flight Recorder Runtime Guide

Java Flight Recorder and Java Mission Control on Java SE Embedded 8

 

NOTE:  Java Flight Recorder is a commercial product included in Java SE Advanced and is only included in the Oracle JDK and not in OpenJDK.

For certification information regarding JDK and OUD, reference the below documents:

OUD - How to Verify OS Version / JDK Version is Certified with Specific Versions (Doc ID 2008449.1)

Supported Java SE and Java Component Downloads on MOS (Doc ID 1439822.2)

 

➜ Java Mission Control Is No Longer Bundled With the JDK

The latest versions of the JDK no longer includes Java Mission Control (JMC). The jmc launcher has been removed from the JDK bin directory, and the missioncontrol directory has been removed from the JDK lib directory. The .jfr file association is not registered by JDK installers. JMC is now available as a separate download. Please visit this website for more information.

 

NOTE: Customers need to be licensed for JAVA SE Advanced to use JFR and/or the Java Mission Control. Contact an Oracle java Sales representative to acquire a license if necessary. The exception to this licensing requirement is when Oracle Support asks for JFR to investigate an issue that requires JFR data to troubleshoot.

 

 

Solution

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Goal
Solution


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.