Oracle Linux: Clean Yum dbcache

These weeks we provide a course on Weblogic 11g and 12c Basic and Advanced Administration and Tuning & Troubleshooting. We use an Oracle Linux 6 VM with a Database and Weblogic 11g and 12c.

We got some complaints (issued in a friendly way, by the way) from the attendees that a filesystem of the VM got filled up.

One of the attendees found out that the following folder containt some very large files:
/var/cache/yum/x86_64/6Server/public_ol6_latest

-rw-r--r--. (more...)

Kscope GO and IoT Workshop at Kscope17

Kscope17 is just around the corner and it is not a secret that we love ODTUG‘s Kscope since it is a conference geared towards Oracle Developers. This year as we have done in previous years, we worked closely with the conference organizers to bring a unique fun experience. We developed an Augmented Reality game called Kscope GO. The concept of Kscope GO should be familiar to all, since last summer the world saw an unprecedented success (more...)

It’s Been 10 Years

Ten years ago, Paul posted a brief introduction to our team and our mission.

He, Rich and I embarked on this journey in March 2007, soon to be joined by Anthony, and none of expected to be around as a team for more than 18 months max.

Photo by Jeremiah Owyang

But, here we are a decade later, having moved around between a few development teams within Oracle, settling into our home in Oracle Applications User (more...)

Maker Faire 2017

Introduction

Another Maker Faire has come and gone, the 12th one already.  Unlike last year, Oracle had a booth again at the Maker Faire, staffed by my colleagues and myself throughout the weekend, where we showed of some fun demos.  Here are some impressions, both from reactions in our booth and from the grounds.

The Booth

Empty Booth

Empty Booth

Booth All Set Up

We shared the booth with the Oracle IOT Cloud Applications team who brought their (more...)

HTTP Server redirects for Weblogic 12c and SAML2

Last few months I got busy with SAML2 and Weblogic 12c as Service Provider. One with ADFS and another using SurfConext as an IdP.

In both cases a HTTP server is used as a reversed proxy, in one case it is Oracle HTTP Server 12c, in the other we use Apache. Although OHS is based on Apache, of course, it has the Weblogic proxy plugin enabled by default. With Apache this is not the case.

(more...)

BPEL 12.2.1.2 and UMS: no wire target for reference…

A moment ago I stumbled on this question on the Oracle community. User Saurabh  tries to build a composite to send email from BPEL. But on testing the deployed composite in EM it fails with a remote fault. This despite of a correct configuration of the email driver and being able to test that   using soa-infra -> Service Engines -> Human Workflow -> Notification Management.

He found that the problem was a bug in JDeveloper/SOA (more...)

Introducing Darwin Oracle Type Accelerator


Years ago, I created a set of XSL templates and queries to create object types out of queries on the datadictionary of the Oracle Database. It only did basic types on tables, and selects on those. I wrote an article on it that still can be downloaded here. Later, I extended the framework to also do inserts and updates and follow foreign keys. The thing with foreignkeys is that you can handle them a as (more...)

List Weblogic 12c System Components

Besides starting and stopping servers, it turns out handy to be able to list the particular system components of a Weblogic domain. For most domains, you might have an embedded/colocated Oracle HTTP server.
But we're also busy with installing BI publisher domains, and there several BI Components are created. To list which ones are created (and determine where things might went wrong) it might be handy to list all the system components. For that I (more...)

Single Sign On for Apex with ADFS? With Weblogic 12c and ORDS: Yes, you can!

Lately we implemented a Single Sign On solution for Apex, based on Weblogic 12cR2, ORDS 3.0.9, and ADFS as a federated Identity Provider. This combination turns out to be a marriage of 3 different worlds. So we ran in to a several issues that were not described in one simple how-to document. So in this document I try to assemble the information needed to do the end 2 end configuration (apart from the (more...)

‘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...)

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

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

Introduction

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

Introduction

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...)

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…



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

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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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