JConsole and AS7.

[whitingjr]

Hi,

I want to use JConsole with AS7. When I attempted to run AS7 with the properties and setup I see this error when the server starts.

=========================================================================
  JBoss Bootstrap Environment
  JBOSS_HOME: /home/whitingjr/java/jboss/as7.1
  JAVA: /home/whitingjr/java-home/bin/java
  JAVA_OPTS:  -server -XX:+UseCompressedOops -XX:+TieredCompilation -Xms64m -Xmx768m -XX:MaxPermSize=168m -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver
.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headles
s=true -Djboss.server.default.config=standalone.xml -Dhibernate.enable_specj_proprietary_syntax=true -Dcom.sun.management.jmxremote.port=12345  -Dcom.sun.mana
gement.jmxremote.password.file=/home/whitingjr/jmxremote.password  -Djava.util.logging.manager=org.jboss.logmanager.LogManager  -Xrunjdwp:transport=dt_socket,
address=8000,server=y,suspend=n
=========================================================================
Listening for transport dt_socket at address: 8000
Could not load Logmanager "org.jboss.logmanager.LogManager"
java.lang.ClassNotFoundException: org.jboss.logmanager.LogManager
        at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
        at java.util.logging.LogManager$1.run(LogManager.java:186)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.util.logging.LogManager.<clinit>(LogManager.java:176)
        at java.util.logging.Logger.getLogger(Logger.java:307)
        at com.sun.jmx.remote.util.ClassLogger.<init>(ClassLogger.java:55)
        at sun.management.jmxremote.ConnectorBootstrap.<clinit>(ConnectorBootstrap.java:739)
        at sun.management.Agent.startAgent(Agent.java:147)
        at sun.management.Agent.startAgent(Agent.java:289)
No module specified
Usage: java [-jvmoptions...] -jar jboss-modules.jar [-options...] <module-spec> [args...]
       java [-jvmoptions...] -jar jboss-modules.jar [-options...] -jar <jar-name> [args...]
       java [-jvmoptions...] -jar jboss-modules.jar [-options...] -cp <class-path> <class-name> [args...]
       java [-jvmoptions...] -jar jboss-modules.jar [-options...] -class <class-name> [args...]
where <module-spec> is a valid module specification string

The instructions I followed to setup JConsole are here

http://docs.oracle.com/javase/6/docs/technotes/guides/management/agent.html#gdenl

This involved coping a template password file and adding some properties to the JAVA_OPTS in standalone.conf.

Additionally to the jconsole setup instructions I

1. set the "java.util.logging.manager" property. Without it as7 failed to start and recommended I set the property.
2. Added the -logmodule flag. This was suggested in another forum discussion which is related but I am using the command line to start the server. https://community.jboss.org/message/715578#715578

My standalone.sh looks like this

....
         -jaxpmodule "javax.xml.jaxp-provider" \ 
         -logmodule "org.jboss.logmanager" \
         org.jboss.as.standalone \
....

Now I see the exception above.

Is there something else I should be doing ?

Regards,

Jeremy

OpenJDK 6, AS7.1.1

[dlofthouse]

There is no need for the properties you are setting, jconsole can connect to AS7 either locally out of the box or by using Remoting if you are remote from the server.

Have a look at the following article: -

Using jconsole to connect to JMX on AS7