This discussion has been locked. The information referenced herein may be inaccurate due to age, software updates, or external references.

You can no longer post new replies to this discussion. If you have a similar question you can start a new discussion in this forum.

JMX Errors when trying to browse some JBoss mbeans

brn5336 over 12 years ago

Getting following errors when trying to open these folders for JBoss using the Mbeans browser for JMX. I can open up the other Mbean folders without issue.

jboss.system
Error occurred during communication with JMX server. The server returned the following error:
error unmarshalling return; nested exception is: java.io.IOException: unknown protocol: resource

jboss.web
Error occurred during communication with JMX server. The server returned the following error:
error unmarshalling return; nested exception is: java.lang.ClassNotFoundException: org.jboss.mx.util.MBeanProxyInstance (no security manager: RMI class loader disabled)

I have this configured in the run.sh:

JAVA_OPTS="$JAVA_OPTS -Djavax.management.builder.initial=org.jboss.system.server.jmx.MBeanServerBuilderImpl"
JAVA_OPTS="$JAVA_OPTS -Djboss.platform.mbeanserver"
JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.port=8686"
JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.ssl=false"
JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.authenticate=false"

0 Bronx over 12 years ago

Hey, I did a brief search and found some blogs that talk about this error. Hopefully this will be a good place to start and may give you some insight. Good luck!
http://www.cisco.com/en/US/products/sw/custcosw/ps1846/products_tech_note09186a0080555d7f.shtml
http://www.coderanch.com/t/183163/java-developer-SCJD/certification/error-unmarshalling-return
https://forums.oracle.com/forums/thread.jspa?threadID=1686442
Cancel
Vote Up 0 Vote Down

Cancel
0 brn5336 over 12 years ago in reply to Bronx

Hi for some reason the jboss.web is now working via Orion APM JMX MBean browser so that issue is solved. I didn’t change anything in my configuration on the JBoss server or how I was connecting to it via Orion APM JMX, so not sure how it suddenly started working.
But I still cannot browse the jboss.system MBean folder. I am still getting the error: Error occurred during communication with JMX server. The server returned the following error:
error unmarshalling return; nested exception is: java.io.IOException: unknown protocol: resource
I was able to install the JDK and run JConsole on my Windows XP PC. I am able to browse the jboss.system MBean folder with no errors via JConsole (see attached screenshot). In JConsole I am connecting to the server using the same port as with Orion APM JMX and authentication fields blank since I used “-Dcom.sun.management.jmxremote.authenticate=false”.
I would like to be able to see the jboss.system:type=ServerInfoMBean as per the attached screenshot since it shows me the ActiveThreadCount, FreeMemory,MaxMemory,TotalMemory.
Cancel
Vote Up 0 Vote Down

Cancel
0 tomb over 12 years ago in reply to brn5336

Hi brn5336,
I see that you are using J2SE 5.0. JMX monitoring in APM runs on JRE6. Could you please try the same with JConsole from JDK6?
Cancel
Vote Up 0 Vote Down

Cancel
0 brn5336 over 12 years ago in reply to tomb

Hi I installed JDK6 and was able to browse the jboss.system MBean with no errors. See screenshot below.
Cancel
Vote Up 0 Vote Down

Cancel