Tuesday Feb 24, 2015

Full recovery of a corrupt WebLogic embedded LDAP server by Peter van Nes

clip_image002Today one of the Adminservers failed to re-start and was flooding the AdminServer.out with multiple EmbeddedLDAP java.lang.ArrayIndexOutOfBoundException messages per second. I do admit, this is not the first article about how to recover from this issue, and probably not the last. Although i was able to Google multiple articles and blogs on this exception, all of the suggested solutions left me with a seed embedded LDAP. The good news is that  by default a backup is made of the embedded LDAP every day at 23:05 and the last 7 copies are retained. You can find these setting by selecting the domain in the domainstructure of the Weblogic console and then open the tab Security > Embedded LDAP.

So you can recover fully from a corrupt Weblogic embedded LDAP server, just follow these few steps.

· Shutdown admin server

· Move the current data directory so you can access it later.
mv <domain_home>/servers/AdminServer/data to <domain_home>/servers/AdminServer/data.bkp

· Start the admin server Read the complete article here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Monday Jul 07, 2014

Installing Oracle Forms/Reports 11.1.2.2.0 on Red Hat 6 by Peter Lorenzen

Here is my experiences with installing Forms and Reports 11.1.2.2.0 on Red Hat 6 (64-bit) using Java 7.

Overview

Documentation

Download the software

Please notice

  • Before using the direkt download links to http://download.oracle.com you need to login in to the site and accept a License Agreement. It does not matter which product you choose.

Prepare the OS

I am using Red Hat 6 64-bit. Check the System Requirements for UNIX Operating Systems. Also check Special Startup Requirements for Linux x86 or Linux x86-64 Operating Systems in the same document.
The kernel must be 2.6.32-100.28.5.el6 or newer. Read the complete article here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Tuesday May 13, 2014

A Weblogic Admin Console with a dynamic look and feel by Peter van Nes

In my previous post i explained how to build your a custom look and feel for the Weblogic Administration Console, which is a result of research into a possibility to distinguish Weblogic Consoles in DTAP environments. My initial plan was to develop a separate look and feel for each specific environment, simply because i did not know what the possibilities were. I quickly abandoned this plan and developed one Weblogic Admin Console look and feel which adapts itself to the environment wherein it is deployed.

At most sites there is a way to determine if your host is running in a Development, Test, Acceptation or Production environment. The key data used to differentiate these environments depends on the infrastructure. It can be for example the IP-address, DNS name or Weblogic Domain name. A customer for example has standardized the weblogic domain names in such a way that the first position of the domain name corresponds with the environment. A Weblogic Development domain therefore always starts with a ‘D’, test with ‘T’, etc.  In this article i will show you how to make the Weblogic Console adapt its look and feel based on the Weblogic Domain name.

The Weblogic Admin Console login page is defined in /login/LoginForm.jsp which imports the MBeanUtils.class file. This class contains a lot of valuable methods. One of those methods, getDomainName() returns as it says the name of the Weblogic Domain. Simply by adding the following single line of Java as a JSP expression to LoginForm.jsp gives you the Weblogic domain name for which the Admin Console is opened. Read the complete article here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Saturday Mar 15, 2014

Deploying Jenkins to a WebLogic Server by Peter Lorenzen

I am working on a project that uses Jenkins. We had a couple of different options for deploying Jenkins. We use Red Hat Linux, so we could run Jenkins as a command line service in the background, or we could deploy it to a servlet container like Tomcat or Glassfish. But since we are already using the WebLogic Server it made most sense to deploy Jenkins there.

Using WebLogic for Jenkins does not work out of the box, so here is the steps I wend thorough to get it up and running on a WebLogic Server 10.3.6.

Overview

Prepare the OS
Jenkins stores it’s files under $JENKINS_HOME which defaults to ~/.jenkins.

You can change $JENKINS_HOME via .bash_profile. Read the complete article here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Monday Nov 18, 2013

UKOUG Tech13 WebLogic Hackathon by Peter Lorenzen

This year’s UKOUG Tech13 conference is kicking off with a free SuperSunday event.


You can choose between 7 streams:

  • Hands on Engineered Systems
  • Analytics – Pulling the Threads Together
  • Database Technology 1 & 2
  • Real World Lessons from ADF Ninjas
  • Extending APEX out of the Box
  • WebLogic Hackathon

The best and most interesting is of course the WebLogic Hackathon ;-)

I have been working with a great group of people to prepare the WebLogic Hackathon:

The theme for the day is configuration management and automation.

I have prepared a lab where participants can try to do a silent and scripted installation/deployment of WebLogic Server 12.1.2 via the standard Oracle tools.

We will use a Linux Server running on the participants laptops via VirtualBox.

Scripting will save you time and make installations identical and hereby maximize predictability.

While scripting is a good start, the next step is to use real configuration management tools to help you out.

There will be a hands-on lab with Puppet and if time permits also one for Chef.

Because this is a hands-on event there is a limited numbers of seats so sign up immediately :-)

Thanks to Peter for sharing Winking smile

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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