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Step by Step Guide to enable JMX in tomcat in windows

May 31, 2023 Leave a Comment

To enable JMX (Java Management Extensions) in Apache Tomcat on a Windows system, you can follow these step-by-step instructions:

  1. Open the Tomcat installation directory in Windows Explorer.
  2. Navigate to the bin directory.
  3. Locate the catalina.bat file and open it in a text editor.
  4. Search for the set JAVA_OPTS line in the catalina.bat file. It may look like this:bashCopy codeset JAVA_OPTS=%JAVA_OPTS% <some_other_options>
  5. Add the following options to the JAVA_OPTS line to enable JMX:bashCopy codeset JAVA_OPTS=%JAVA_OPTS% -Dcom.sun.management.jmxremote ^ -Dcom.sun.management.jmxremote.port=9999 ^ -Dcom.sun.management.jmxremote.ssl=false ^ -Dcom.sun.management.jmxremote.authenticate=false The above configuration sets JMX to listen on port 9999, disables SSL, and disables authentication. Adjust these values as needed for your specific setup. Note the ^ symbol at the end of each line, which indicates a line continuation in the Windows batch file.
  6. Save the changes to the catalina.bat file.
  7. Open a command prompt as an administrator.
  8. Navigate to the bin directory within the Tomcat installation directory.
  9. Execute the following command to start Tomcat:bashCopy codecatalina.bat run
  10. Tomcat will start with JMX enabled on the specified port. You should see log messages indicating the JMX configuration.

Sample

set "JAVA_OPTS=%JAVA_OPTS% %JSSE_OPTS% -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9012 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false"

Rajesh Kumar
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