Questions tagged [jmx]
Java Management eXtensions is a standard Java API that enables the instrumentation and monitoring of a running Java program.
2,450
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How to activate JMX on my JVM for access with jconsole?
How to activate JMX on a JVM for access with jconsole?
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12
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How do you Force Garbage Collection from the Shell?
So I am looking at a heap with jmap on a remote box and I want to force garbage collection on it. How do you do this without popping into jvisualvm or jconsole and friends?
I know you shouldn't be in ...
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Has anyone ever got a remote JMX JConsole to work?
It seems that I've never got this to work in the past. Currently, I KNOW it doesn't work.
But we start up our Java process:
-Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=6002
-...
- 117k
112
votes
10
answers
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Calling JMX MBean method from a shell script
Are there any libraries that would allow me to call a JMX MBean method from a shell script. We expose some operations/admin commands through JMX, and we could have our admins use JConsole, or VisualVM,...
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votes
7
answers
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How do I attach VisualVM to a simple Java process running in a Docker container
Actually I wanted a solution working for JEE containers, specifically for Glassfish, but after I tried many combinations of settings and did not succeed, I reduced the setup to the simplest possible ...
- 2,452
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votes
12
answers
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Remote JMX connection
I'm trying to open a JMX connection to java application running on a remote machine.
The application JVM is configured with the following options:
com.sun.management.jmxremote
com.sun.management....
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90
votes
3
answers
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Explain JMX URL
I am trying to understand a JMX service URL.
service:jmx:rmi://192.168.30.10:1234/jndi/rmi://192.168.30.10:2344/jmxrmi
It would be great, if someone can help me understand this.
Thanks
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Why Java opens 3 ports when JMX is configured?
I run my Java program with JDK7 on Centos6. I enable JMX using the following options:
JAVA_OPTS="${JAVA_OPTS} -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9123 -Dcom.sun....
- 10.2k
71
votes
4
answers
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JConsole over ssh local port forwarding
I'd like to be able to remotely connect to a Java service that has JMX exposed, however it is blocked by a firewall. I have tried to use ssh local port forwarding, however the connection fails. ...
- 2,154
66
votes
11
answers
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Unable to remotely connect to JMX?
For some weird reason I am not able to connect using VisualVM or jconsole to a JMX.
The parameters used to start the VM to be monitored:
-Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote....
- 166k
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1
answer
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How to find the default JMX port number?
I am running a Java application on Java 6 VM on a remote Windows XP, on which I can run jvisualvm.exe to connect to the running application automatically.
Now I need to connect that application from ...
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votes
12
answers
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Connecting remote tomcat JMX instance using jConsole
I am trying to connect to a remote tomcat JMX instance using jConsole. But can't connect successfully. Any Idea?
I included the following option in remote tomcat catalina.sh:
JAVA_OPTS="$JAVA_OPTS -...
- 3,986
54
votes
4
answers
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Difference between MBean and MXBean
I have the following questions regarding MBean and MXBean:
What is the difference between MBean and MXBean?
What are the use cases for MBean and MXBean?
- 3,776
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votes
7
answers
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How to access JMX interface in docker from outside?
I am trying to remotely monitor a JVM running in docker. The configuration looks like this:
machine 1: runs a JVM (in my case, running kafka) in docker on an ubuntu machine; the IP of this machine ...
- 6,941
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6
answers
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What is the best or most commonly used JMX Console / Client [closed]
I have a server application that has been instrumented using JMX so that it can be monitored in test and production environments. I wish to show the current value of some JMX exposed attributes as ...
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5
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How to connect to a java program on localhost jvm using JMX?
I should connect to a java program on localhost jvm using JMX. In other words I want to develop a JMX client to config a java program on localhost.
Don't recommend using JConsole! JConsole is not ...
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4
answers
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jmeter pass command line variables into a jmx
I'm trying to automate some perf testing. I'd to pass server locations into a generic jmx from a Jenkins job. I'd like to be able to do something like:
jmeter -n -t foo.jmx -JtestingIP=IP
and ...
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42
votes
2
answers
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JMX password read access issue
When I try to use JMX to monitor an application like this:
java -Dcom.sun.management.jmxremote.port=9999 \
-Dcom.sun.management.jmxremote.authenticate=false \
-Dcom.sun.management.jmxremote....
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41
votes
4
answers
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How to access Spring-boot JMX remotely
I know that spring automatically expose JMX beans. I was able to access it locally using VisualVM.
However on prod how I can connect to remotely to the app using it's JMX beans? Is there a default ...
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votes
3
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other open source alternatives to codahale's "metrics"? [closed]
I came across the metrics project from codahale, and I believe that it is used at Yammer. I like this solution, but want to know if there are other open source alternatives with similar capabilities.
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How to connect to Java instances running on EC2 using JMX
We are having problem connecting to our Java applications running in Amazon's EC2 cluster. We definitely have allowed both the "JMX port" (which is usually the RMI registry port) and the server port (...
- 116k
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1
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MBean persistence
I have a problem with persistence of my config MBean. My configuration:
<bean id="adminMBean" class="pl.mobileexperts.catchme.mbeans.AdminSettingsMBean"></bean>
<bean id="exporter" ...
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11
answers
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How to enable remote JMX on Kafka brokers (for JmxTool)?
I enabled JMX on Kafka brokers by adding
KAFKA_JMX_OPTS="-Dcom.sun.management.jmxremote=true
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management....
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32
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6
answers
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JMX Defined [closed]
I am looking for:
What JMX is.
Where I can find some good JMX
Tutorials.
What JMX can provide to me as a
Java EE programmer.
Anything else I should be aware
of.
- 13.9k
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votes
5
answers
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What do you monitor with JMX in your production Java application?
This question is not about how JMX works or what JMX does. This question is about applications of JMX in a standard application server environment in production. It is not for specific server either.
...
- 19.4k
30
votes
12
answers
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How do you enable JMX in Websphere?
I would like to use JConsole to monitor my Websphere application, but I am not sure how to enable JMX.
29
votes
7
answers
92k
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Does Java 6 open a default port for JMX remote connections?
My specific question has to do with JMX as used in JDK 1.6: if I am running a Java process using JRE 1.6 with
com.sun.management.jmxremote
in the command line, does Java pick a default port for ...
- 22.2k
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3
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Remote monitoring with visualvm and JMX
I would like to monitor a remotely running java (spring boot) application with jvisualvm (or jconsole). When running locally, I can see the managed beans in both jvisualvm and jconsole. When running ...
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29
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2
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Does enabling JMX agent have a performance overhead?
I would like to have a possibility to use jconsole in production, but am a bit concerned about performance. Is it ok to leave JMX agent running (via -Dcom.sun.management.jmxremote) or will it have a ...
- 1,272
28
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2
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How to get percentage of CPU usage of OS from java
I want to calculate percentage of CPU usage of OS from java code.
There are several ways to find it by unix command [e.g. using mpstat, /proc/stat etc...] and use it from Runtime.getRuntime().exec
...
- 10.6k
27
votes
9
answers
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Debugging JConsole Connection Failed
I have a web application deployed to a remote resin server, and it has JMX turned on.
I can telnet to the remote server i.e
franz@see:/tmp$ telnet <remote-ip> 5555
Trying <remote-ip>...
...
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26
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4
answers
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How to find the JMX port in a server?
I am sure I can figure it out if I can see the JAVA OPTS parameters. I want to monitor a hornetq server using Jconsole, so I need the port number.
I remember using some command like java grep etc ...
user244333
26
votes
5
answers
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Is a good idea to enable jmx (lambda probe) on a production server?
We are experiencing some slowdowns on our web-app deployed on a Tomcat 5.5.17 running on a Sun VM 1.5.0_06-b05 and our hosting company doesn't gives enough data to find the problem.
We are ...
26
votes
4
answers
31k
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Measuring Java execution time, memory usage and CPU load for a code segment
For a particular segment of Java code, I'd like to measure:
Execution time (most likely thread execution time)
Memory usage
CPU load (specifically attributable to the code segment)
I'm a relative ...
- 17k
24
votes
5
answers
40k
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Not able to Connect a Remote Host to the VisualVM
I am new to Java and I'm facing a problem in connecting a Remote Host to the JVisualVM.
I've searched the Internet and followed all the steps mentioned there but still am not able to resolve the ...
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7
answers
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How to have JMX bind to a specific interface?
I am currently starting my Java VM with the com.sun.management.jmxremote.* properties so that I can connect to it via JConsole for management and monitoring. Unfortunately, it listens on all ...
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23
votes
3
answers
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Bypassing JConsole requirement for username/password - when using a Jaas custom login module with JMX to handle authorization and authentication
I'm using JConsole to access an MBean that is running.
The MBean uses a custom Jaas login module and is run with the following command:
java -classpath UserLGUGroupHandlingApplication.jar;...
- 521
22
votes
5
answers
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List of JMX objects and attributes?
I am trying to implement a nagios plugin, and doing so requires that I know specifically what object and attribute I want to monitor. The thing is, I haven't been able to find a listing anywhere of ...
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votes
3
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Difference between JMX and RMI
What is the purpose of JMX and what is it used for? I have been scanning through some of the tutorials on JMX and all they do is register some Mbeans and invoke those Mbeans from jconsole. If that is ...
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How do I give a name to a VisualVM "<Unknown Application>"?
JDK 1.6 comes bundled with a handy tool called VisualVM that lets you inspect and interact with running Java processes. One feature is that it auto-detects running JVMs on the local machine. Most ...
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Have you used Perf4J to collect and analyze performance metrics in Java app? [closed]
Did you use Perf4J in your Java application to collect and analyze performance stats?
What was the typical pattern (using log files, utilities, UI, JMX, etc.)?
Did you use annotations and AOP-...
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votes
2
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Meaning of Spring @ManagerResource: persistPolicy, persistPeriod, persistLocation and currencyTimeLimit
What does the following fields mean in Spring @ManagedResource used for JMX? There is no Javadoc or related description in Spring documentation.
1. String persistPolicy() default "";
2. int ...
- 3,522
21
votes
4
answers
45k
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JBoss AS 7 JMX Console
I spent some time checking out JBoss AS7 today. I am impressed with what I have seen so far but I noticed that good ol' JMX-Console no longer exist.
Does anyone know why it was left out?
I ...
- 2,683
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votes
6
answers
31k
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Unable to use JConsole with Tomcat running as windows service
I am running tomcat 6.0.18 as a windows service. In the service applet the jvm is configured default, i.e. it is using jvm.dll of the JRE.
I am trying to monitor this application with JConsole but ...
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5
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Is there any JMX - REST bridge available?
Hi I would like to monitor a Java application using the browser but at the same time utilising the existing JMX infrastructure.
I know that JMX provides a HTTP interface but I think it provides a ...
20
votes
4
answers
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How do I access memory usage programmatically via JMX?
I'm looking for sample Java JMX code to access the values of JMX attributes from another VM.
With JConsole, I have no problem looking at java.lang/Memory/Attributes/HeapMemory
How would I get the ...
- 1,239
19
votes
4
answers
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Disabling JMX in a spring application
I'm trying to disable jmx so that i don't get:
org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'mbeanExporter'anymore.
I've found a partial answer saying that ...
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votes
4
answers
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Failed to Unregister DataSource JMX MBean While Shutting Down a Spring Boot Application
I have a simple Spring Boot application using org.apache.commons.dbcp2.BasicDataSource as dataSource bean.
The data source is exposed as MBean automatically by Spring boot.
The bean declaration:
@...
- 949
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votes
4
answers
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Package accessible from more than one module: <unnamed>
When trying to register an MBean in JMX Console I'm getting the following error message:
The package javax.management is accessible from more than one module: <unnamed>, java.management
I'm ...
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17
votes
5
answers
34k
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JMX agent throws java.net.MalformedURLException when host name is set to all numeric value
We are using tomcat 7.0.27 in our application. We are below setting jmx properties on tomcat startup.
-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=8666 -Dcom.sun.management....
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