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I have an issue about continuously running Java Flight Recorder to monitor memory usage and other performance statistics of ActiveMQ.

  • Wrapper configuration file (wrapper.conf) is under this directory with nearside (wrapper, activemq, libwrapper.so) files;

    ../apache-activemq-5.12.1/bin/linux-x86-64/wrapper.conf

  • I added the lines below to run JFR;

     wrapper.java.additional.13=-XX:+UnlockCommercialFeatures                                            
 wrapper.java.additional.14=-XX:+FlightRecorder
 wrapper.java.additional.15=-XX:FlightRecorderOptions=defaultrecording=true,disk=true,repository=../jfr/jfrs_%WRAPPER_PID%,settings=profile
 wrapper.java.additional.16=-XX:StartFlightRecording=filename=../jfr/jfrs_%WRAPPER_PID%/myrecording.jfr,dumponexit=true,compress=true

  • When I run wrapper file, expected output 'myrecording.jfr' is generated under specified path in wrapper.conf. But the problem is, I also want it to be happen automatically (without running wrapper file by hand).

What might be the possible solution for that?

ercument.ekentok
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    I don't know about ActiveMQ, but the command line parameters you use will start two recordings. If you are using a JDK prior to JDK 8u40, remove -XX:StartFlightRecording. If you are using later versions, I would use -XX:StartFlightRecording=settings=profile,dumponexit=true,filename=... and remove -XX:+FlightRecorder and only use -XX:FlightRecorderOption for setting the repository location. – Kire Haglin Oct 22 '17 at 22:03
  • Unfortunately,it didn't work either. – ercument.ekentok Nov 01 '17 at 11:06

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