‘No such file or directory’ on starting your domain

Today I was triggered by this question. Earlier I had a similar problem, where I searched, and searched and searched and found the last section on this blogpost. Yes indeed, that is how it works when you blog: you might find your self finding your own blogposts again.

What is it about? Last year I wrote a nice set of scripts on installing Fusion Middleware and creating Fusion Middleware Weblogic domains.

I created the domain-creation-script (more...)

R: Utilizing multiple CPUs

R is a great piece of software to perform statistical analyses. Computing power can however be a limitation. R by default uses only a single CPU. In almost every machine, multiple CPUs are present, so why not utilize them? In this blog post I’ll give a minimal example and some code snippets to help make more complex examples work.

Utilizing multiple CPUs

Luckily using multiple CPUs in R is relatively simple. There is a deprecated (more...)

Better track the Usage of Database Options and Management Packs, or it will cost you

So here it is:
Oracle announces a license audit, some urgency kicks in and this familiar but also really serious question comes up from management: “Are we using any unlicensed database features“. The seriousness is quite understandable, because if so, the company can look forward to some negotiations with Oracle over license fees, possibly resulting in considerable and unforeseen extra costs.

Tracking… why:
To be able to provide a swift and correct answer (more...)

New and improved (re-)start and stop scripts for Fusion MiddleWare.

Last year I created a set of start and stop scripts for Weblogic/Fusion MiddleWare. Although I was quite happy with them at the time, I found that there was quite a lot of duplicate code. And I think I could improve them by combining at least the wlst scripts into one, making it a lot better maintainable, but also opening up for restart functionality. And doing so make the scripts more generic. I took my (more...)

The Mummy Official Trailer 2017 – Tom Cruise, Sofia Boutella,…

The Mummy Official Trailer 2017 - Tom Cruise, Sofia Boutella, The Mummy Movie 2017 HD

Oracle Mobile Cloud Service (MCS): An introduction to API security: Basic Authentication and OAuth2

As an integration/backend developer, when starting a project using Mobile Cloud Service, it is important to have some understanding of what this MBaaS (Mobile Backend as a Service) has to offer in terms of security features. This is important in order to be able to configure and test MCS. In this blog I will give examples on how to configure and use the basic authentication and OAuth2 features which are provided to secure APIs. You (more...)

Machine learning: Getting started with random forests in R

According to Gartner, machine learning is on top of the hype cycle at the peak of inflated expectations. There is a lot of misunderstanding about what machine learning actually is and what it can be done with it.

Machine learning is not as abstract as one might think. If you want to get value out of known data and do predictions for unknown data, the most important challenge is asking the right questions and (more...)

BPM BAC Subversion Server refusing connections

These days I work on setting up several development lifecycle environments for BPM, SOA and OSB. What means that we setup servers for Development and test, culminating eventually in supporting the setup of the acceptance and production servers.

Since we want to have development resemble production as much as possible, we installed a dual-node clustered BPM environment, including BAM. However, since it is development, we have the two Managed Servers per cluster on the same (more...)

Funny Dogs Eating Like HumansDogs Eating with HandsDogs Eating…

Funny Dogs Eating Like Humans
Dogs Eating with Hands
Dogs Eating with Fork
Funny Dogs Video
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Developer Experience: How Do We Improve


In the first part of this series I introduced the concept of Developer Experience and why I think it is important that we start investing more into improving the Developer Experience.  In this part I will lay down some foundations on how this could be done.

The pillars of DX

Know your user (i.e. the developer)

Not all developers are alike.  You can see this within a company like Oracle: developers in the DataBase group (more...)

Developer Experience: What and Why


For the past 2 years I have been trying to raise awareness of the concept of Developer Experience (DX) both inside and outside Oracle.  Over the next few days I will release a couple of blog posts delving deeper into this subject.  This first post will concentrate on what DX is and why I feel it is important that we invest in it.

What is Developer Experience

The concept of Developer Experience has existed for many years. (more...)

Back from PaaSForum

So, and now we're back in business after a splendid week in Split, Croatia, to meet with about 200 great, enthusiastic con-colleagues from the fields of SOA and Weblogic. It was the yearly OPN Partner Community Forum, ran by the great Jürgen Kress. He did a formidable job to collect many informatic sessions on the latest news and products from Oracle. We could meet with product managers, eat  and drink with them. To my surprise (more...)

How I learned to appreciate MongoDB

Last week at our company we organized a session about NoSQL in general and MongoDB in particular, as you can read here. The MongoDB focus was presented by me and I would like to take you with me on my trip to actually appreciating the NoSQL database world (and MongoDB in particular).

Coming from RDBMS I’m used to ACID. Business models reside within the database, data never gets lost, transactions are isolated, you’ve got your (more...)

The value of the Oracle PaaS Partner Community Forum

IMG_7692I have just returned home from the Oracle PaaS Partner Community Forum 2017 which took place in Split, Croatia. Filled with energy, inspiration, impressions, already fond memories, more understanding, longer term plans and shorter term action items and a warm feeling of being part of an international network of smart, open, helpful and fun people. Does that sound soft, a little over the top – slightly brainwashed even? Let me try to explain what this (more...)

Who Likes Me?

In my previous entry, Fun with Facebook, I described how to pull data from Facebook’s Graph API Explorer, organize it using NodeBox, and turn it into representations of friends, posts, and the “likes” that connect them. Here is the final result:

The final “Who Likes Me?” poster

The above image is a snapshot of a high-resolution poster with many fine details. One of my goals for this project was to create (more...)


Nokia 6 - XPERIA XZ PREMIUM - LG G6 - HUAWEI P10 - BLACKBERRY KEYONE - 2017 Hot Releases

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Development and Runtime Experiences with a Canonical Data Model Part I: Standards & Guidelines


In my previous blog I’ve explained what a Canonical Data Model (CDM) is and why you should use it. This blog is about how to do this. I will share my experiences on how to create and use a CDM. I gained these experiences at several projects, small ones, and large ones. All of these experiences were related to an XML based CDM. This blog consists of three parts. This blogpost contains part I: (more...)

Development and Runtime Experiences with a Canonical Data Model Part II: XML Namespace Standards

This blog is about XML namespace standards. Primary for using them in a Canonical Data Model (CDM), but also interesting for anyone who has to define XML data by creating XML Schema files (XSD). This blogpost is the second part of a trilogy about my experiences in using and developing a CDM. The first blogpost is about naming & structure standards and the third blogpost is about dependency management & interface tailoring.

XML Namespace Standards


Development and Runtime Experiences with a Canonical Data Model Part III: Dependency Management & Interface Tailoring


This blogpost is part III, the last part of a trilogy on how to create and use a Canonical Data Model (CDM). The first blogpost contains part I in which I share my experiences in developing a CDM and provide you with lots of standards and guidelines for creating a CDM. The second part is all about XML Namespace Standards. This part is about usage of a CDM in the integration layer, thus how (more...)

Amazon Echo Dot 2nd Generation Review – Echo 2nd Generation…

Amazon Echo Dot 2nd Generation Review - Echo 2nd Generation Features - Echo Dot vs Echo

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