At the recent Hadoop Summit in Amsterdam I noticed something that has been bothering me for a while.  Lots of companies have done some great Proof of Concepts with Hadoop but they are rarely turning those into fully blown operational solutions.  Being clear I'm not talking about the shiny, shiny (more...)

Oh the chanting is out, Big Data, Fast Data, the three 'V's and of course the ubiquitous elephant are roaming across the IT landscape as the next great hype monster.  Its going the same way as pretty much every IT hype exercise.  Yes this links to the hype cycle but the (more...)

There is a famous phrase In the kingdom of the blind, the one eyed man is king IT has always had a problem communicating with the business, and the business communicating with IT.  To fix this IT created something called Enterprise Architecture which aimed to provide a framework around the (more...)

Industrial SOA is a 14-part  article series focused on service orientation, written collaboratively by a group of recognized experts and community leaders in service oriented architecture. I’m really happy and proud to be part of that group. 

SOA and service-orientation have laid the foundation for a variety of emergent (more...)

Today, I was one of speaker at "Magic of VMs" tech talk in Moscow. Meet up was held under roof of Rambler, a lot thanks to them for helping us in this event.

Topic of meetup was low level implementation details of  various runtimes for popular platforms.

Below are (more...)

In June I will be speaking for the German Oracle User Group (DOAG) at the Infrastructure and Middleware Community Summit in Mainz. This is all about Oracle Infrastructure and Middleware topics and has great speaker lineup for the german-speaking Oracle community.  The summit consists of the three tracks “Infrastructure”, (more...)

As of April 2013, patchset 6 is out for the whole Oracle Fusion Middleware stack. It is always hard to find the release notes on the Oracle Website. To many clicks. Here are the releae notes of Weblogic, SOA Suite, Service Bus, AIA and JDeveloper. Note thate PS6 refers to (more...)

A few years ago I wrote an article about "When Big Data is a Big Con" which talked about some of the hype issues around Big Data.  One of the key points I raised was about how many folks were just slapping on Big Data badges to the same old (more...)

In 2008 i wrote about using vmware images with virtualbox. To migrate a host from virutalbox to Hyper-V, you have to do nearly the same, but you have to convert the hdd:

• Convert your Virtualbox-hdd with VBoxManage.exe clonehd:
  (from vdi to vhd)

C:\Users\schroff>"\Program Files\Oracle\VirtualBox\VBoxManage.exe" clonehd
"c:\Users\schroff\VirtualBox VMs\Debian64-DS\Debian64-DS. (more...)

After knowing, that running a linux inside Hyper-V is only working with the "legacy" network adapter (look here), i was trying to build a kernel with the drivers (Microsoft has added the drivers into the Linux kernel versions >2.6.32).
There is one nice tutorial out there:

• IT (more...)

Writing automated tests for Coherence based application is quite challenging. Definitely, you can start single node cluster in your test JVM without too much hassle. Unfortunately, single node cluster will not allow you to replicate some important aspects of cluster (a thus, test wont be able to catch a number (more...)

First try with a virtualization solution like Hyper-V is to install a guest. So let's try debian linux.
The installer runs through this points:

1. Name & path of the virtual machine
2. RAM
3. Network (how to configure a virtual switch with internet connectivity or how to configure internet connectivity with (more...)

In my last posting i explained how to configure a vEthernet adapter to get connectivity to the internet. But there was one "problem": You had to provide one seperate IP for each virtual host, you want to connect to the internet.
But there is a solution (NAT) for this problem (more...)

First thing you have to do after enabling Hyper-V is to set up your network for your virtual machines. This is not so easy, because some things do not work...
So let's start: Open the Virtual Switch Manager
There you have three options:

1. external (connectivity to the internet)
2. internal (connectivity (more...)

If you are running a Microsoft Windows 8 Professional, you can use Microsofts virtualization platform Hyper-V. To get the management window you have to open

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Hyper-V Management Tools

and double click the icon:
If this icon (or the path) is not there, you have to enable Hyper-V:
Open your (more...)

I am offering an introductory special to ForgeRock’s Identity (I3) Stack.  I am calling this the “Sequester Special”.  You get free software (**ForgeRock support license required for binaries used in a production environment**) and a reduced rate on professional services.

Download the information sheet here.

Sequester Special | For those (more...)

First meet up of Oracle Coherence users in Moscow was held on 14 Mar.

Many thanks to Gene Gleyzer (Oracle), who was key speaker on this event (joining us remotely).

Below are slides from event: