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Questions tagged [java-mission-control]

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.

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.

See http://www.oracle.com/technetwork/java/javaseproducts/mission-control/java-mission-control-1998576.html

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Profiling Apache Hive CLI

This link Profling Hive CLI provides an instruction on how to profile the Hive CLI using Java mission control. And the steps are Create a directory to save profiler outputs:mkdir $HOME/profiles Create an alias so that it would be easier to…
Lawan subba
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Java App Profiling to find out the Culprit Classes

We have a java web app running in a server. It is hosted with tomcat. I have enabled Flight recorder and i am able to connect to connect with JMC and recording Flight... Now, i am not sure how i can find the classes which is making my app slow.Let…
Fahad Ahammed
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What are the colours for in Java Mission Control's MBean Browser?

I cannot seem to find any details on what these colours are supposed to indicate or be related to. As far as I can tell they don't appear to correlate to anything, and multiple instances of the same MBean interface have different colours assigned…
OrangeDog
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Are exceptions counted for JVM lifetime in Java Flight Recorder?

I have run a Java Flight Recorder recording for 2 minutes on a JBoss EAP 6.1 app server under load. I enabled exception counting (Java Application => Java Exception => Enabled=true) and I'm surprised by the number of reported exceptions. When I look…
ola
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How can I get the last recordings from Java Flight Recorder?

I'm starting Java Flight Recorder with the following command. jcmd $PID JFR.start duration=2h filename=my_record.jfr dumponexit=true settings=profile It's recording the first 2 hours after started. For example, if it started at 1:00, it records…
hbelmiro
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Blocking Locks appearing in code

I am investigating an ongoing CPU usage issue where it goes high after sometime of usage. I got an alert on one of the nodes that the load was high and I opened Java Mission Control and took a quick Flight Record. I am attaching the output of what I…
user4889345
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Cannot connect Java Mission Control to remote machine

I am trying to connect JMC to my remote server. Added the following flags to the the JVM: -Dcom.sun.management.jmxremote.port=7000 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false Opened port 7000 in my…
Ran
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How to use Java Mission Control

Hello I am a beginner in Java and had finally downloaded Java Mission Control. However I am not familiar with it and have trouble creating a basic setting for me to practice coding. I have started programming with Python 3.4 and used Pycharm but…
신도현
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Java Flight Recorder / Java Mission Control custom events for Tomcat

Are there Java Flight Recorder / Java Mission Control custom events for Tomcat? If so, where are they documented?
XDR
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Flight Recorder "native" files

If I set up a continuous or long-lived timed recording on a JVM, do I ever have to worry about the dump files on the target machine getting too big? Where are these files stored? Thx.
joe7pak
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Custom events for GlassFish in Java Flight Recorder / Java Mission Control

I've read that GlassFish provides custom events for Java Flight Recorder (JFR) / Java Mission Control (JMC). I tried viewing in JMC 5.4 a JFR 5.3 recording obtained from GlassFish 4.1 running in Java 7u67. The recording was setup from the command…
XDR
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Exception Access Violation in JRE

I am getting following exception sometimes while running a simple java application which doesnt uses JNI. I have used different versions like 1.6, 1.7.0_47 and 1.7.0_67 to check if it works fine with them. But it doesnt work. I am experiencing this…
Amit Verma
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Java Flight Recording for JDK 8

I just read about Java Flight Recording and figured out that it's a commercial feature. Since it's enabled by -XX:+UnlockCommercialFeatures -XX:+FlightRecorder. so the question is if it's possible for me to use it in our production environment for…
Some Name
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What are the use cases of using Java GC logging feature instead of JMC?

Java Mission Control has been open sourced lately. It's a full-fledged profiler which can provide a lot information about a running application. Not only it can show how much memory the particular application is using or how often Java GC is kicking…
user1140313
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