How to Run OAM 11g Audit Reports in BI Publisher 11g

July 31, 2012 Leave a comment

A common requirement for enterprises that implement the Oracle Identity Management 11g solution is to have the ability to report all authentication and authorization operations in their applications.  Assuming that the the applications have already been secured by Oracle Access Manager 11g, and that a Bussiness Intelligence 11g solution is in place, there are several configurations that need to be made in order to have reports on authentication operations, failed authentications etc from OAM.

At the time this post was written, OAM reports are only available for BI 10g ( and so the OAM reports need to be upgraded to 11g using the BI Upgrade Assistant in order to be used in a 11g BI environment.

This post will go through all the steps required to upgrade and set up these reports. Although the post discusses the OAM reports, the same steps apply for the Identity Manager 11g reports as well.

Here is a list of the main steps to be followed:

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How to find Weblogic patches in Oracle Support site?

April 25, 2012 Leave a comment

After the Oracle’s aquisition of BEA all Weblogic server legacy patches have been included in the new My Oracle Support site, Oracle’s former Metalink. Due to this change, all Weblogic patches are now identified by a patch number of 7 digits (e.g. Patch 8206442). However, there are many resources out there such as blogs or even notes in the Oracle support site that still refer to the Weblogic patches by the old identification code, formed of 4 alpha numeric characters (e.g. Patch PKJ1)

To locate and download these patches from the MOS site ( or you need to:

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Unable to start Weblogic: PasswordEncrypted of ServerStartMBean

April 25, 2012 Leave a comment

The Weblogic administration server is not starting and the complete error message is:

“In production mode, it’s not allowed to set a clear text value to the property: PasswordEncrypted of ServerStartMBean”

If this is occurring in Weblogic versions 10.3.1 or earlier, then it is a known bug with the administration console. The bug will cause a <password-encrypted> tag of a certain weblogic instance in your domain to be set to a null value in the config.xml. This will happen if you modify some startup arguments of that instance in the administration console. Weblogic will interpret the null value as a plain text password, which is not allowed in a production domain, thus the error in starting the server.

There is a patch that you can apply for this issue, but there are also some quick workarounds that might prove very useful if there is a time constraint for starting the administration service.

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Installing and configuring Oracle Traffic Director 11g

April 3, 2012 Leave a comment

Oracle Traffic Director is a new product with Proxy and Load Balancing functionalities used for fronting Fusion Middleware servers. It is a lightweight, high performance proxy server taking only 150Mb of disk space, with extensive High Availability features. You can find more on the OTD’s features in this Oracle Traffic Director white paper.

OTD is currently released only for the Exalogic platform, so for operating systems other than OEL 64bit you will still have to use the Weblogic plugin for web servers, but OTD will be available for all platforms in the future.

This post will describe the installation and a basic configuration fronting a Weblogic cluster:

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‘Broken Pipe’ error in Application Server Logs While Connecting to the Database

February 24, 2012 Leave a comment

I have encountered this problem at several customer sites, where the symptoms are the following:

In the application server logs the following error shows up while attempting a connection to the database:

Caused by: Broken pipe
at Method)

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How to Simulate an Exalogic Machine for Training

February 13, 2012 6 comments

In the new “Cloud Computing” era, Oracle is leading it’s private cloud offering with the new complete hardware and software platform for Enterprise applications, Oracle Exalogic. However, even within Oracle it can be quite difficult to gain access to an Exalogic machine, and getting to know the system just by reading the documentation is a daunting task. So this post will walk you through the steps of setting up a simulated Exalogic machine, in a virtual environment, that you can use for training purposes.

After completing these steps, you will have an environment where you will be able to make the same storage, network, operating system and software configurations as on the actual Exalogic machine. Of course, this will not be suitable for production, nor will any benchmarks have any relevance. It’s just something that you can use to get yourself familiarized with the machine. If you are new to the Exalogic machine, I suggest going over the Oracle Exalogic White Paper before continuing with the steps.

So, in order to build the system, you will need:

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Instrumenting Weblogic Applications with WLDF: Where Does The Application Spend Time?

February 1, 2012 1 comment

The WebLogic Diagnostic Framework is a very powerful tool complementing the WebLogic server that offers virtually unlimited possibilities to monitor, tune and troubleshoot your deployed applications. In this post I will describe how to use WLDF in order to get a better idea on where does an application spend it’s time, broken down by components. This is achieved by using the WLDF application-scoped instrumentation. The main steps for setting it up are:

  1. Enable the Diagnostic Context to track down a request throughout the system;
  2. Enable server-scoped instrumentation;
  3. Enable application-scoped instrumentation;
  4. Define specific Diagnostic Monitors and assign them specific Actions;
  5. Update the application with the new settings;
  6. Access the instrumented application and analyze the collected data;

Let’s get into details with each of these steps…

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