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Blog Arnaud Berbier UKOUG 2012: Middleware

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Posted by on in Middleware

UKOUG 2012: Middleware

I had the opportunity to spend two days in England (Birmingham) to participate in the UKOUG 2012. My first day was the Middleware sunday. This event is related to technical content and feedback for WebLogic administrators. It was an interesting day with useful feedback related to Oracle WebLogic.

MiddlewareSunday

This Sunday middleware agenda event was as follows:

  • WebLogic Sctripting Tool - Taking WLST to the Next Level (Simon Haslam, Veriton Limited)
  • Node Manager under the Covers (Jacco Landlust, iDBA)
  • WebLogic JMX Overview: Tool and Development (Frank Munz, munz & more)
  • JVM Tuning and Performance diagnostics for WebLogic (René van Wijk, Axis into ICT)

The aim of this blog is to let you know what I have learned and have been able to test since the UKOUG2012 conference was held using the collected information.

WLST

In this session, Simon Haslam talked about easeSyntax usage. He provided some usage examples and showed how it can help to be more comfortable with WLST command like UNIX command line environment.

I tested the usage of easeSyntax command. It is very useful to browse MBean properties as if you are in a Unix command line. After typing easeSyntax we can use ls, cd, pwd and wlst command without parenthesis.


UKOUG2012_001



Bye Bye parenthesis!

I also tested the execfile instruction which enables the execution of an external jython file.

Another thing that I would like to write about in this blog posting is the ability to parse parameter values in a WLST script with sys.argv[n]. You need to import sys to use it in the script. With that, you can add parameter as follow to use them in the script


wlst.sh /tmp/testParseParameter.py -param1 'myParam' -param2 'myParam2'


Useful information about WLST

Nodemanager

The session was about the usage of Java based nodemanager and the script based nodemanager. Jacco Landlust advised us to use java based nodemanager rather than the script based version which is not supported anymore and will disappear.

JMX Overview

In this session, there was a quick overview of JMX. After that, the presenter, Mr Frank Munz, focused on the RESTful integration to easily request MBeans property via http protocol.  All MBeans properties are not yet available via RESTFul capability but will come in further version.

Just think to the multiple possiblities with only one browser and AJAX. I tested it. This is very simple, portable and can be integrated in any web application. No Java needed ;) 

JVM Tuning

For JVM tuning, the two best of bread JVM (Sun and Oracle) are merging their capacity. JRockit in version 7 will not be released. It would be merged into one Oracle Java jdk including all features of JRockit. This change has been done from Java version 7 available on Oracle web site. Of course, some commercial features need to be licensed...

We must follow the evolutions to see the changes that this merger will bring ;)

To conclude this middleware sunday, Oracle WebLogic 12c has made a big Jump, massive changes (200 new features) from the older version that have to be tested to see possible practical advantages.

My second and last day was interesting too, it was a session on WebLogic Performance Tunning: Tales and techniques from the Field. This session covered jvm analysis for performance tuning. Steve Millidge showed us interesting command line utilities such as jcmd (sun Hotspot) and jrcmd (Jrockit). I tested their usage and, indeed, these tools are very usefull to monitor the JVM.

Steve also presented some graphical tools such as jconsole, visualVm and Jrockit mission control. 

I had the possibility to learn lots of interesting and useful stuff during these UKOUG 2012 sessions, so I hope I will have the opportunity to be present the next year!

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Arnaud Berbier is Consultant at dbi services. He has more than three years of experience in Oracle application development. He is specialized in PL/SQL and APEX 4 development and masters the programming of requests in SQL language. He has a solid expertise in the analysis of business requirements and architectures based on Oracle technologies. He is Oracle Application Express 4 Developer Certified Expert, Oracle Certified Associate (OCA) WebLogic 11g System Administrator, OCA Java, and ITIL Foundation V3 certified. Arnaud Berbier holds a Bachelor of Science in Information System Management from the University of Applied Sciences Western Switzerland (HES-SO ARC) in Neuchâtel. His branch-related experience covers Public Sector, Financial Services / Banking, etc.

Comments

  • Guest
    IT Services Tuesday, 15 January 2013

    I want to know more information about that.How i get that? please reply as soon as possible...

  • Guest
    Arnaud Tuesday, 15 January 2013

    Hi,

    I collected those information during UKOUG 2012 conferences. Very rewarding for me.

    My advice is to directly connect to UKOUG in order to have more information or visits the official Oracle website.

    greetings

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Guest Wednesday, 23 July 2014
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