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Recently, I upgraded my JBoss installation to 4.2.3.GA and encountered problems with my existing login configuration files.

The following error was generated on server startup:

I was asked recently by a friend about scraping data off websites, in particular the wowarmory. WOWArmory is a searchable database of characters, items, guilds and dungeons for the MMO World of Warcraft.

What makes this site unique is that only XML is returned for any query performed. For example, the following search returns an XML document containing as list of all the characters in a particular guild:

One of the most exciting features available from Oracle's Real Application Clusters (RAC) is 24/7 availability. When a node fails, Transparent Application Failover (TAF), allows transactions to restart or be resumed on another node in the cluster, in theory providing no interruption of service to the client.

As a developer, there is nothing transparent about TAF. I recently had a client move to an Oracle RAC environment for their existing application. They assumed that RAC would take care of everything and there would be minimal or no code changes.

The Oracle RAC installation book has been updated to include a guide on how to install, upgrade and configure a database instance.

It can be found here.

The Oracle RAC installation book has been updated to include a guide on how to install, upgrade and configure Automatic Storage Management.

It can be found here.

The Oracle RAC installation book has been updated to include a guide on how to upgrade Clusterware to patchset 2.

It can be found here.

Recently I needed to manage an Oracle RAC installation and needed to setup a test environment to mirror the production environment of the client. So I wrote up what I hope is straight forward guide to installing Clusterware on Windows Server 2003.

The guide can be found here.

It only covers installation of Clusterware software for now. Guides for ASM and cluster database install to follow soon.

I encountered a situation where I needed to re-install an Oracle RAC installation.

The two nodes in my cluster were fresh installs of Win2003 R2 Enterprise x64 Edition. In this case I needed to reuse the shared disk between the two nodes.

Running the cluster verification utility (runcluvfy.bat), my two machines passed cluster pre-install check:

> runcluvfy.bat stage -pre crsinst -n rac1,rac2 -verbose.

Recently I was asked to make a WinForm application I was working on secure using CAS (Code Access Security). Specifically they wanted function calls to be secured based on the users domain groups. The intention was to add several different groups to each user that had access to the application and restrict access to certain functionality depending on which role they were assigned. The expectation was that CAS would make this more secure that just disabling menus and buttons.

The final 4 tutorials for the OfficeTest General Tests sample are now available.

The starter page and code can be found here: Firebird and .NET 2.0 development Example.

The tutorials can be found here: JobPosition: Custom Business/DataAccess objects which uses ObjectDataSource with custom made business classes instead of datasets.

and here: Employee: Custom Business/DataAccess objects which uses ObjectDataSource with custom made business classes instead of datasets.