Eric D. Schabell: July 2011

Thursday, July 21, 2011

Fedora 15 - howto set default application for open document formats to LibreOffice

My new installation of Fedora 15 seems to have a problem finding the right application to start for all the OpenOffice or open document formatted files. She needs to be using Libreoffice, but starts Calibre app on my machine. The standard assignment of default applications via System Settings is only for a small set of applications, so you need to dive into the configuration files like this:

# Fix system wide in /usr/share/applications/defaults.list

# by changing all '' entries into 'libreoffice'

# with for example in VIM this cmd:


# Fix in local user settings with ~/.local/share/applications/mimeapps.list

# but you will most likely need to copy the above entries into

# your local settings.

Wednesday, July 13, 2011

JFall 2011: jBPM Migrations - providing a path into the future of BPM

My submission about the jBPM Migration Project for the NLJUG JFall conference:

 jBPM Migrations - providing a path into the future of BPM
This session will outline the status of our jBPM migration tooling project. We will take a look at the background of jBPM 3 process projects and how we plan to help you migrate to jBPM5. We will start by providing you with a plan for positioning your existing Enterprise jBPM projects for the eventual move towards jBPM5. This will cover the architectural layers involved, a look at the tooling being created for this and steps you can take to ensure a smooth transition moving into your jBPM future. Finally we will demo the existing tooling on an actual existing enterprise jBPM projects. This will provide you with real life scenarios to take home as examples for your own BPM projects. The presenters have over 6 years of combined enterprise jBPM experience and have completed award winning BPM projects in the Netherlands. They initiated the jBPM migration tooling project to assist the community with their migration concerns.

 See you there in Nijkerk on 2 November 2011?

JFall 2011: OpenShift - real development using cloudy JBoss

My submission to demo OpenShift at the NLJUG JFall conference:

OpenShift - real development using cloudy JBoss

  This session will provide the background on what PaaS is and what this means for you as a developer. We will separate this term from those like Cloud, IaaS and SaaS to give you a real solid basis of what this technology means to you. We will discuss why you would even want to make use of PaaS and what the future is going to look like for you as an Enterprise Developer. A large part of the session will demonstrate the current status of OpenShift. We will walk the audience through their first ever Cloud application running on OpenShift. The final part of this session will provide a look into the more advances levels of OpenShift, demonstrating the tooling provided to manage your PaaS deployments. We will discuss the various components that are available to you as a developer and how much control you have over these components.

 See you there in Nijkerk on 2 November 2011?

Wednesday, July 6, 2011

Fedora 15 - how to get 8GB of RAM recognised in 32 bit installation

When adding to the original 4GB of RAM my laptop had I wanted to max it out to 8GB. Off to the shop, purchased and installed 2x 4GB cards and booted it up. The Bios recognises 8GB out of the box, but Fedora 15 does not with the default 32bit kernel. You need to install the following packages:

# install PAE kernel.
$ sudo yum install kernel-PAE kernel-PAE-devel

Once I did this, rebooted and you can see the memory is recognised:

# memory shown for 8GB after PAE kernel installed.
$ free
             total       used       free
Mem:       8154348    5368672    2785676

$ grep MemTotal /proc/meminfo
MemTotal:        8154348 kB

Now my Java efforts are rocket fast on this machine!