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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 exports in different file format?

The user interface of Java Mission Control jmc allows me to generate Flight Recorder recordings. In the Start Flight Recording dialog, I can enter the name of a recording file to generate, like test.jfr: I realized that the generated file doesn't…
Hbf
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How to add enable flag for Flight Recorder in Maven project?

I'm just about start using Java Mission Control 5.3.0. I have added -XX:+UnlockCommercialFeatures -XX:+FlightRecorder into my web-app's jetty.template. Then I start the web-app with mvn jetty:run. But while I was starting Flight Recorder I got the…
phantipa
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Java Mission Control with windows services: disabled functionality

I am trying to use the "Log historical data" functionality provided by Java Mission Control to record information about: - Used Java Heap Memory - Commited Java Heap - Maximum Java Heap of a local tomcat instance running as a Windows…
Jose R.
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JMC maxage/maxsize doesn't work

According to JAVA cmd Reference I can set maxage and/or maxsize of JFR recording but it doesn't work. I've shared Intellij IDEA recording and compilation of scala using ant: Stats For idea I had the following settings: -XX:+FlightRecorder…
ichaki5748
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JDK Mission Control

When opening the tab of memory in jdk mission control with jfr file, it's getting nothing. İs there any parameters to setting the process which is I get jfr file. I've just added that parameter to enable flight recorder. java…
Emrahall
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Can't see flame graph from jfr file with JMC or FlameViewer

I've generated a .jfr file with mvn test -Dtest=DataRunnerIT -DargLine="XX:StartFlightRecording,filename=flight.jfr" I can confirm that the .jfr file is ok because I've opened it with the Profiler of IntelliJ IDEA Ultimate and the graph is properly…
ThCollignon
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JVM heap dump without trace information: "Unresolved Name"

There is a memory issue on our production environment. We're running under OpenJDK 14.0.1+7 with -XX:+HeapDumpOnOutOfMemoryError I've loaded created hprof file into Eclipse Memory Analyzer it shows some problems but without class names information…
Artem Zyuzko
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How can I get the composite field column in Java mission control's event browser?

I am able to see the primitive data type used in java class in the event browser's table of Java Mission Control. But it is not showing the composite data types. My code is: package com.foo.bar; public class AB { @Name("com.foo.bar.Author") …
Niwedita Rani
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Is there a way to get the designer view in the JMC 8 to visualize the event?

In the older version of JMC (I guess till JMC 5) we had the designer view to visualize the events. How can I achieve the same functionality in JMC 8? Thanks.
Niwedita Rani
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Mission Control apps fail for Java 17.0.1 - why?

Azul Mission Control 8.1.0.42 and Oracle's Java Mission Control apps 8.1.0 fail to work with Oracle's Java 17.0.1 jdk on MacOs Monterey 12.0.1 with M1 chip... And since I cannot file this issue in GitHub, maybe someone can give me a clue here.
Hristo Stoyanov
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Why JFR skips event fields

I have a simple event: @Name("trace.dbquery") public class QueryJfrEvent extends Event{ @Label("Event Name") public String eventName; @Label("Event Name2") public String eventName2; @Label("Event Name3") public…
srg321
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JDK Mission Control: Modifying Stack data from jfr files

Like this question - I'm trying to load in an existing jfr file that has been recorded on another machine external to our organisation. I now want to deobfuscate the information, either as a plugin for JDK Mission Control, or as a utility for…
Rafe
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How to enable JMX in wildfly running in windows server 2016

I'm running wildfly in windows server. Need to setup JMX to monitor remotely I have tried adding JMX settings in standalone.conf.bat file and opened firewall port, but still not able to monitor using jconsole Environment: Wildfly 23 Redhat…
Hari Prassad Kannan
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How to enable Object Types + Allocation Stack Traces + Path to GC Root in Java Mission Control

I'm trying to analyse memory leak using java mission control, I wanted to find the reference to the classes from which the object are getting created, looks like I have to enable the below properties to get that details from Live Object details, but…
Vignesh
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Does it exist a Weblogic plug-in for Java Mission Control 7.1.2?

The previous version of JDK Mission Control 5.5.2 bundled with Oracle JDK 7 had the possibility to add a WebLogic plug-in, which allows viewing the SQL queries, servlets between other components as seen in this image. Then the new JDK Mission…
Mario.Cadiz
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