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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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Java Flight Recorder - no Live Objects

I'm running JFR on JDK 1.8_261. I'm running my application using those VM options: -XX:+UseG1GC -XX:+UnlockCommercialFeatures…
Ori Popowski
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Is there any way to open the Java Mission Control with the JVM's websphere 8?

I have a Websphere instance running, it runs localy with its own JVM, that is bundle on it. The issue is when I try to profile the websphere process, The JMC can't view the process, I've tried of many ways: Downloading the JMC binaries Installing…
Cisco505
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Java Mission Control (JMC) unable to change MBean attribute

I am unable to change attribute of the registered MBean in JMC (v 7.1), jdk1.8.0_172 However, I am able to change it in jconsole MBean definitions and registration: public class ProfilingController implements ProfilingControllerMBean { private…
fg78nc
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Azul Zulu JDK 8 with Azul Mission Control doesn't profile methods

I'm using Azul Zulu JDK 8 (v1.8.0_202) with Azul ZMC 7.1.1 on Win10, and I'm creating a 20s Flight Recording of a running JVM. The resultant data displays various captured metrics (e.g. CPU Usage Heap Usage, Allocation etc) but no Method Profiling…
jon hanson
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Executing Java Mission Control from command line

I have copied the JMC 7.0 binaries in linux. Any idea on how to start the application from commandline or do we need GUI to be enabled in linux ? Thanks, Naveed
Naveed
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How to monitor a java application using JDK Mission Control and OpenJDK 1.8?

I installed JDK Mission control 8.0.0 from the Github repository or here. When I launch it I can only see the self JMC instance. My java application is not visible. I am using openjdk version 1.8.0_252 and I launched my application using the JVM…
Felipe
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How to take JMC output into a file?

I want to log the output of Java mission control console in a file (txt or xml) so that I can get the file for putting it into Splunk. . Referring to https://docs.oracle.com/javacomponents/jmc-5-5/jmc-user-guide/logging.htm#JMCCI129 I tried to made…
user3706921
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JMC Java Flight Recorder not enabled

I am using spring tool suite with the java mission control plugin to start an app which I would like to monitor using the JFR. I added -XX:+UnlockCommercialFeatures -XX:+FlightRecorder to the SpringToolSuite4.ini and additionally set JAVA_OPTS with…
Kavau
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can I use Java Mission Control to monitor older JVMs?

Can I use Java Mission Control to monitor an older JVM, like 1.7.0_u2? The program tells me that I can't use the Flight Recorder but is there a problem or limit with the rest of monitoring options?
jmann
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Java Profiler JMC UI Dashboard isn't displayed on Mac OS

Mac configuration macOS HighSierra 10.13.4 Java version 1.8.0_171, x86_64: "Java SE 8" I'm trying to launch jmc, but only 3 dots in UI are displayed. The window can't be resized. I launched the program with logs ./jmc -debug -consoleLog Start…
user2105282
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Capture a flight recording from JMC/JCMD vs WLDF image capture

I need a Java flight recording to diagnose a performance problem on production Weblogic servers. I'd like to also get the Weblogic events. Is there any difference between starting the flight recording from either Java Mission Control (or in my…
public wireless
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Getting Error while opening jfr file in JMC console

I'm getting too large recording error while trying to open my 60 MB jfr file in JMC console. Please help me on this. Thank you
Mani
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Unable to run Continuous Flight Recorder for Java app running as a service on Windows10

I'm trying to profile a Java application, which is running as a Service in Windows 10(64 bit) using Java flight recorder dumponexit option. During the execution, Windows does create a temporary directory and temporary .jfr file. However, the final…
Amrit
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Java Mission Control - Access Denied Connecting to Remote

I cannot connect to a remote VM using Java Mission Control. I can connect using VisualVM with relative ease. The reason I want to use Mission Control is due to a long-standing bug with VisualVM having to be restarted whenever the remote VM is…
Coder Guy
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Long Pause During Sweep Switch in Jrockit Old Collection

I am facing issue with long pauses during sweep switch of old collection in Jrockit, which is making my application unresponsive for seconds Jrockit Version: R28.3.12-8 Configuration: JAVA_OPTS="-Xms10G -Xmx10G -Xns:2g -Xgc:pausetime…
Nishant Modi
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