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Tag Archives: OSGi

Bucharest Tech Week Conference – Monoliths in a Microservices World

29 Monday May 2023

Posted by mp3monster in General, Technology

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Tags

anti-corruption, Apache, API, architecture, Bucharest, Celix, conference, Felix, Istio, Linkerd, micro-kernel, Microservices, monoliths, OSGi, presenting, Tech Week, Verrazzano

Last week I was fortunate enough to have the opportunity to present at the Software Architecture Summit as part of the Bucharest Tech Week conference. My presentation, Monoliths in a Microservice World, was all new content that, by chance, worked well, bringing together a number of points made by other speakers. The presentation aimed at the challenges of adopting Microservices and whether Monoliths had a place in modern IT, and for those of us not fortunate enough to be working for one of the poster children for microservices like Netflix, Amazon, etc, how we can get our existing monoliths playing nicely with microservices.

The conference may not have the size of Devoxx (yet), but it certainly had quality with presenters from globally recognized organizations such as Google (Abdelkfettah Sghiouar), Thoughtworks (Arne Lapõnin), Vodafone (IT Services business unit – _VOIS – Stefan Ciobanu), Bosch, as well as subsidiaries of companies like DXC (Luxsoft) and rapid growth SaaS vendor LucaNet.

As a presenter, you’re always wanting to walk the tightrope of being at the biggest conferences to maximize reach for your message while at the same time wanting the experience to be friendly and personable, which often means slightly smaller conferences. The Software Architecture Summit balanced that really well; rather than lots of smaller breakout sessions, the conference focussed on a single auditorium for a large number of attendees, with presentation slots varying in length depending upon the subject matter. If a session didn’t interest you, then there were plenty of exhibitors to talk with – although, from what I saw, the auditorium was full during the sessions, reflecting the interest in the content.

“Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.” – John F. Woods

Quote of the conference – as cited by @DevPaco (Paco van Beckhoven)

The conference organizers (Universum) certainly put in the effort to ensure the presenters were looked after. It is the little touches that really make the difference, such as taking care of logistics which can be as simple as organizing airport transfers. A letter of thanks will be waiting for you at the hotel after the event, organizing a meal for the presenters at a local restaurant and so on.

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OSGi In Depth – A Review

29 Friday Apr 2011

Posted by mp3monster in Books, Technology

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Tags

book, OSGi, review

OSGi In Depth

OSGi In Depth

When I first came across OSGI In Depth (was originally called Enterprise OSGi In Action during its Manning draft stages) I had to ask myself whether the same publishing house could justify another book on OSGi when they had already published OSGi In Action a year or so before.

Having now read both I have to say that there is a case for both, yes there is a degree of overlap – but that is necessary to set background.  The In Depth book is very much geared up for architects and looks at the technology from a architecture and design consideration with some very honest insights and good practices.  The In Action is better suited to developers that need to know about all the different interfaces.  The two books are very complimentary, where to start obviously depends upon where you’re approaching OSGi from.

In Depth can at times feel feel a little be discouraging read, but upon reflection what  you’re reading is actually very honest worts and all set of insights. Lets be honest how many J2EE books go into the challenges, and headaches of getting entity EJBs to be highly performant, not to mention the deployment challenges that could be faced with versioning of the underlying database if your selling production solutions that should be easy to upgrade.

When you get past this, there are some seriously valuable insights into possible dead ends that you could go down or catch you out later on if you don’t do that up front thinking about how you want to package, deploy and upgrade during the earlier phases of a development programme.

The book illustrates the way to address a number of these, and provides a number of design patterns. The book does miss a trick of providing these patterns as an appendix where they can be easily referred to for reference only.

Over all this is a valuable read, particularly you’re looking at OSGi from an architectural perspective (as I am).  Rather than try and review each chapter I have developed a mind map to help show content of each part of the book  (of course this means I have a memory jog if I need to come back to specific issues).  The mind map of this can be found at http://www.mp3monster.org/new/techie/MindMaps/OSGi-In-Depth.shtml

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    I work for Oracle, all opinions here are my own & do not necessarily reflect the views of Oracle

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