Accessing JMX for Oracle WebLogic 11g

In Oracle Utilities Application Framework V4, we use the latest Oracle WebLogic release (11g). The instructions below illustrate a way of allowing a console like jconsole to remotely monitor and manage Oracle WebLogic using the JMX Mbeans.

Typically management of Oracle WebLogic is done from Oracle Enterprise Manager or the Oracle Weblogic console application but you can also use JMX.

To access the JMX capability for Oracle WebLogic 11g, for an Oracle Utilities Application Framework based product, using a JMX console (such as jconsole) the following process needs to be performed:


  • Enable the JMX Management Server in the Oracle WebLogic console at splapp -> Configuration -> General -> Advanced Settings option. Enable both Compatibility Mbean Server Enabled and Management EJB Enabled (this enables the legacy and new JMX interface). Save the changes This change will require a restart.

  • In the startup of the Oracle WebLogic server in the $SPLSYSTEMLOGS/myserver.log (or %SPLESYSTEMLOGS%\myserver.log on Windows) you will see the BEA-149512 message indicating the Mbean servers have been started. The message will indicate the JMX URL that can be used to access the JMX Mbeans. The URL is in the format:


service:jmx:iiop://host:port/jndi/mbeanserver
where:
host - Oracle WebLogic host name
port - Oracle WebLogic port number
mbeanserver - Mbean Server to access. Valid Values:
weblogic.management.mbeanservers.runtime
weblogic.management.mbeanservers.edit
weblogic.management.mbeanservers.domainruntime

For illustrative purposes we will use the domainruntime Mbean.


  • Ensure that you execute the splenviron[.sh] utility to set the appropriate environment variables for the desired environment.

  • Execute the following jconsole command to initiate the connection to the JMX Mbean server


Windows:
jconsole -J-Djava.class.path=%JAVA_HOME%\lib\jconsole.jar;%WL_HOME%\server\lib\wljmxclient.jar -J-Djmx.remote.protocol.provider.pkgs=weblogic.management.remote

 

Linux/Unix
jconsole -J-Djava.class.path=$JAVA_HOME/lib/jconsole.jar:$WL_HOME/server/lib/wljmxclient.jar -J-Djmx.remote.protocol.provider.pkgs=weblogic.management.remote



  • You will see a New Connection Dialog. Specify the URL from the previous steps into the Remote process (i.,e. service:jmx:iiop...). The credentials are the credentials specified for the Oracle WebLogic console.

  • You are now able to view the JMX classes available.


Here is an example from my demonstration machine:

 

 

Sample WebLogic Statistics

 

Refer to the Oracle WebLogic Mbean documentation to understand the output.

Comments:

Thanks Anthony. It's good to see this type of information being advertised for OUAF as JAVA monitoring (but not just jConsole) is really mandatory as OUAF implements more JAVA. From past experience, root cause analysis through monitoring tools like Wily Introscope or Oracle AD4J are a saviour in the production world. Note - With the current version of JAVA, Oracle advised that OD4J is not supported. Any recommendations on tools you have come across in use with CC&B for RCA style monitoring (i.e. not just reactive monitoring like what jconsole is used for)? Keep up the great work, Matt ps. Note - I'm not an OUAF expert, but your blogs are great to get an understanding of how things should work.

Posted by Matt Harding on May 17, 2010 at 05:05 AM EST #

Matt thanks for the comments. AD4J should be updated soon so that is always an avenue. I have been playing with jvisualvm which is now part of Java 6. The local monitoring seems to work fine though I have been having a little inconsotency with the JMX addon connecting to anything but the basic JVM statistics. I hope to play with it a bit more in the coming weeks and may post a blog entry on how to use it.

Posted by Anthony Shorten on May 19, 2010 at 12:19 AM EST #

Thanks for the response Anthony. Note - I didn't realise you posted a reply till now (I was googling AD4J and Weblogic and this came up) but just a point that I thought I would get emailed when an update was made to this discussion. Maybe a feature to highlight to the Oracle community owner? Cheers, Matt

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About

Anthony Shorten
Hi, I am Anthony Shorten, I am the Principal Product Manager for the Oracle Utilities Application Framework. I have been working for over 20+ years in the IT Business and am the author of many a technical whitepaper, manual and training material. I am one of the product managers working on strategy and designs for the next generation of the technology used for the Utilities and Tax markets. This blog is provided to announce new features, document tips and techniques and also outline features of the Oracle Utilities Application Framework based products. These products include Oracle Utilities Customer Care and Billing, Oracle Utilities Meter Data Management, Oracle Utilities Mobile Workforce Management and Oracle Enterprise Taxation and Policy Management. I am the product manager for the Management Pack for these products.

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