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Questions tagged [jmc]

Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis.

Java Flight Recorder is a profiling and event collection framework built into the Oracle JDK. It allows Java administrators and developers to gather detailed low level information about how the Java Virtual Machine (JVM) and the Java application are behaving. Java Mission Control is an advanced set of tools that enables efficient and detailed analysis of the extensive of data collected by Java Flight Recorder. The tool chain enables developers and administrators to collect and analyze data from Java applications running locally or deployed in production environments.

http://www.oracle.com/technetwork/java/javaseproducts/mission-control/index.html

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Connecting Java Mision Control to AWS EC2 instance

I have a java application running on AWS EC2 instance(Amazon Linux AMI:Fedora). I am doing performance testing for my application and I have tested it using JMC with my local and remote servers, where I would log in using basic authentication; but I…
Aksh
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Java Flight Control - Keep Last N Minutes record data

Can someone let me know in Java Flight Control started via Java Mission Control if it is possible to keep only last N minutes of data under continuous recording? I have gone through this discussion but I am not able to find where I have to pass the…
tuk
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how to execute JMX monitoring without restarting tomcat

i am wondering if there is a possibility to configure a JMX monitoring without restarting my TOMCAT server since it is still working i want to add the below commands in a setenv.sh…
bibou test
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Magnify Y axis in Java Mission Control charts

I recently recorded a Java Flight Recorder (JFR) dump of a java program. When I opened it using Java Mission Control (JMC), I could adjust the X axis but not Y (In many graphs). I tried flipping my screen (ctrl + alt + arrow key) and it worked ;-)…
Eranga Heshan
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Export Java Mission Control recording (jfr) in html report

Is it possible to export JFR recording in html report format ? scenario - I have to start jfr recording on the JVM for the duration of my performance testing. Once the testing is finished, I want to publish the JFR recording in HTML format.
UmeshPathak
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JMC parser for Java JFR dumps using Jrockit

I got to know that parsing JFR into Java can be done by unsupported parsers like JMC parser using jrockit from this. Also I figured during the flight recording there will be lot of events captured. If I want to retrieve data values from various…
Vithulan
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Java mission control - failed to start recorder

java.lang.RuntimeException: Access denied! Invalid access level for requested MBeanServer operation. at com.jrockit.mc.flightrecorder.controlpanel.ui.FlightRecorderProvider.refresh(FlightRecorderProvider.java:110) at…
user12384512
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Java Mission Control - record mbean values

Is it possible to record mbeans values using Flight recorder? When I am monitoring my server in mbean mode I plot java.lang.management.OperatingSystemMXBean.getSystemLoadAverage() which works great. I would also like to get this value in flight…
user3364192
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Where does Oracle Java Mission Control store settings on Windows?

I am using v5.5 on Windows from JDK v1.8.0_60. Where are connections and settings stored? I cannot find on my disk nor registry. (Yes, I am aware of File -> Export... to save settings to file.) Update I tried to find the source code online, but I…
kevinarpe
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local address in java mission control

I'm using Java Mission Control to analyse a Java Flight Recorder recording. I'm particularly focusing on the socket activity. I'm able to see the remote address from which my application read data, or to which it writes data. But I don't manage to…
Guillaume Delafosse
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Java Flight Recoder cmd args to enable collection of object statistics

I am using this list of command line arguments to the jvm -XX:+UnlockCommercialFeatures -XX:+FlightRecorder -XX:StartFlightRecording=delay=2m,duration=30m,filename=member.jfr,settings=profile to start a flight recording. however when I open the…
dmc
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java flight recorder how to dump on exception, FlightRecordingDumpOnUnhandledException

java version 1.7.0_79 Java(TM) SE Runtime Environment (build 1.7.0_79-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode) args i use -XX:+UnlockCommercialFeatures -XX:+FlightRecorder -XX:+FlightRecordingDumpOnUnhandledException…
dmc
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Java Flight Recorder: Does it need JMX readwrite access or is readonly enough?

The JMX lets you set access rights for users in a file called jmxremote.access (you can find the template in /jre/lib/management). In there you can specify for each user if the user has.. "readonly" grants access to read attributes…
fgysin
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How to intercept FlightRecording events ( java )?

Is there a way to intercept FlightRecorder events in order to send them not only into FlightRecording during recording but to another consumer also. Thanks!
SergeZ
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Method Profiling of Java Mission Control

In the method profiling area of JMC, I could observe some methods are annotated with JIT_COMPILED and some methods are annotated with INLINED. For those methods annotated with INLINED, could I also say they are JIT_COMPILED too?
Bostonian
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