Microservices is a hot topic, but how do you migrate from relational monoliths to ditributed data? Come hear Red Hat's Edson Yanaga explain how, and also how to use Google's Kubernetes is used to wrap an deploy Docker into production.

Edson is presenting....

Migrating to Microservice Databases: From Relational Monolith to Distributed Data

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Kubernetes for Java / Docker Developers

Doors Open 14:00 (afternoon session) / 18:15 (evening session)

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This month, for only the second time in our ten year history, we are hosting our meetup on a Sunday. We are incredibly privileged to welcome Edson Yanaga, Red Hat's Director of Developer Experience.

Edson is a Java Champion and a Microsoft MVP. He is also a published author and a frequent speaker at international conferences, discussing Java, Microservices, Cloud Computing, DevOps, and Software Craftsmanship.

Yanaga considers himself a software craftsman and is convinced that we all can create a better world for people with better software. His life's purpose is to deliver and help developers worldwide to deliver better software faster and safely - and he can even call that a job!

You can follow him on twitter at @yanaga

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Migrating to Microservice Databases: From Relational Monolith to Distributed Data

In a distributed system with multiple moving parts, which is the case of Microservices, we can’t allow that a single complement downtime breaks down the entire system. Dealing with stateless code is easy, but it gets much harder when we have to deal with persistent state. In this scenario, zero downtime migrations are paramount to guarantee integrity and consistency.

Within all the Microservices characteristics, undoubtedly the one that creates more perplexity is the “one database per Microservice”. However, very few teams have the privilege of starting something from scratch: most of the times they have a legacy database that will survive any new implementation.

In legacy systems you traditionally have a model that adopts transactions, strong consistency, and CRUD. In order to guarantee integrity and consistency with zero downtime, we must reassess some of these concepts. In this talk we’ll discuss strong and eventual consistency, CRUD and CQRS, Event Sourcing, and how these techniques relate to each other in many different integration and evolution strategies for relational databases. We’ll explore Views, Materialized Views, Mirror Tables, Event Sourcing/Streaming, Data Virtualization, Change Data Capture, and how these strategies enable you to build up a Microservices architecture from a legacy monolithic relational database.

Download Edson's recently released O'Reilly book

Kubernetes for Java / Docker Developers

Yes, Docker is great! We are all very aware of that but now it’s time to take the next step: wrapping it all and deploying to a production environment. For this scenario, we need something more. For that “more” we have Kubernetes by Google - a container platform based on the same technology used to deploy billions of containers per month on Google’s infrastructure.

Ready to leverage your Docker skills and package your current Java app (WAR, EAR or JAR)? Come to this session to see how your current Docker skillset can be easily mapped to Kubernetes concepts and commands. And get ready to deploy your containers in production!

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REGISTRATION NOTES

The Dublin Java User Group meetups are designed to enhance the knowledge of developers and technology professionals.

Due to the overwhelming demand to attend our events they are always full. Tickets are mostly free, although, on occasion, a refundable attendance fee is required.

The organisers reserve the right to cancel the booking if the attendee is not aligned to the intended audience.

The Dublin Java User Group - Sponsor Messages

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Version 1 is a trusted technology partner to major domestic and international customers across all industry sectors in the UK and Ireland. Their Java practice has grown to over 120 people over the last few years, and continues to grow. Many of their Java customers use a significant amount of open-source tools and technologies, and therefore Version 1 work with the community to hear other Java success stories, learn more about people’s experiences, and bring in Java experts and champions to get the latest on what’s going on in that space.”

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Teckro's partnership with DubJUG means that they can interact and exchange ideas with some of Dublin’s best developers.

Website: Teckro.com / Twitter: TeckroOfficial

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Sonorplex add the edge to event attendance with their innovative 'Mark and Review' video platform. Download the Sonorplex app on your smartphone, attend DubJUG, and click points of interest in realtime. Your own personal 'marked' copy will be available for reviewing within hours, allowing you to relive the presentations again and again!

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MORE DUBLIN JAVA USER GROUP EVENTS

Java developers who are interested in this meetup are also attending other Dublin Java User Group meetups - check them at DubJUG.org

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