OTN APAC Tour 2016 Auckland

Second day of the OTN APAC Tour 2016 in Auckland.  Changed my introduction from the Eisbach surfers a bit to another German stereotype 🙂


I did another 3 presentations. Again I spoke about What You Should Know about WebLogic,
Oracle Service Bus and Docker. Not surprisingly the Docker presentation and live demo was very well received and people asked all kind of questions afterwards.


Also I uploaded a number of photos of day 2 of the OTN APAC tour:

OTN APAC Tour 2016 Wellington

New Zealand Oracle OTN / NZOUG

The OTN APAC Tour 2016 started Oct 26th in Wellington. I bumped into Tim Hall already at the airport and then met other colleagues such as Bjoern Rost and Anton Els at the conference. The conference was hosted at the Amora hotel with a number of about 100 attendees.

I did 3 presentations, which was quite challenging after 30h of travel time the previous day. The same night we left for Auckland where another 3 presentations are scheduled. Anyway, good news was that Francisco Munoz picked us up at the airport at night and gave us a ride to the hotel.





A distributed system is the one that prevents you from working because of the failure of a machine that you had never heard of

This quote is part of my tech quote explained series from Java One / Open World 2016. Actually it is the special edition for the OTN appreciation day 🙂

Leslie’s Quote that I heard at Java One 2016:

“A distributed system is one that prevents you from working
because of the failure of a machine that you had never heard of.”

Leslie Lamport


The following explanation is mine, not Leslie Lamport’s. Besides, yes, Leslie is the guy who is known for LaTex and his work on the Paxos algorithm.

There are many rather theoretical publications about distributed systems, but Leslie’s definition nails it. Distributed systems produce all kind of surprises! They are never boring. Latency issues or network failures may trigger timeouts or split brain conditions. System failures, availability zone outages or the complete failure of a data center region challenge your availability concept. If everything goes terribly, terribly wrong, you better have a good contingency plan within close reach.

Nowadays we offload some of these challenges to modern cloud architectures. On a PaaS or SaaS level you simply stop worrying about it, because somebody else solves the problem for you. On a IaaS level things are obviously more interesting. The popular circuit breaker pattern – the one that is now mentioned in seemingly every blog or presentation (I also wrote about it in my cloud book ) – goes back to the Netflix Cloud OSS and the research done in over 50 open source projects.

Antifragility means that you grow by doing the things that stress you. Like you when you grow your biceps when going to the gym. Modern cloud architectures run an armada of chaos monkeys, chaos gorillas and latency monkey that simulate system or data center failures in production environments and inject random latencies in networks. Due to this developers are challenged to write resilient code and architects architect for constant failure. The kind of failures Leslie mentioned in his quote.

Don’t miss the other quotes of this series, e.g. regarding app servers vs. monoliths, and about SaaS and Cloud APIs.

If you don’t have cloud APIs when connecting to SAAS it is not gonna work – Luis Weir / Oracle Open World 2016.

This quote is part of my tech quote explained series from Java One / Open World 2016.

Luis Weir’s Quote from Open World 2016:

“If you don’t have cloud APIs when connecting to SAAS it is not gonna work. Simple as that”.”

Luis Augusto Weir, Principal Cap Gemini UK. @Luisw19


The following explanation is mine, not Luis’:

The number of APIs has grown exponentially over the last years. When a public API was almost exotic, strange and seemingly weird a couple years ago it has become the norm today. Do you still remember when you searched for a working implementation of a web service that you could access with a public WSDL just a while ago?

Nowadays there is a wide array of public APIs available. APIs give you access to Twitter, to Amazon Web Services, to your business partners, your Tesla or BMW car, to your home automation system and so on. No SaaS would make any sense without it.

The world has dramatically changed. Everything comes with an API and will continue to do so. This is why API Management becomes increasingly important and popular to manage such APIs. To understand more about this, including the evolution from REST and API Gateways to APIs everywhere, check out Luis API Management in 2016 presentation.



Don’t miss the first quote of this series regarding app servers vs. monoliths.

Win a Oracle WebLogic Server and a Middelware and Cloud Computing


At this year’s Oracle Open World I will be gifting a total of 4 review copies of my books.  Opposite the official bookstore, right at the OTN Lounge.


Oracle Book raffle



To win: retweet the original Twitter announcement. I will pick a random retweet as the winner by Tuesday 13.00h and let you know. I suggest to follow me on Twitter so that I can inform you if you are the lucky winner. The winner can pick up the copy opposite the Oracle book shop at the OTN lounge at the following time only:

  • All books are given away in Moscone South, Tuesday 15.15h, right at the OTN lounge. In case of doubt ask for the OTN manager Bob Rhubart (left on the picture below).
  • There will be free beer at the OTN lounge at that time, so pass by say Hello and join us for a drink and a photo.


This is not a lottery. No purchase required. The winner is kindly asked to write a short review an Amazon.com.