Our upcoming events


Our events are about learning. Recent meetups have varied from Java 8 with Oracle’s David Delabassee, Machine Learning with Google’s Melanie Warwick, Agile Coding with Venkat Subramaniam, Scala with Lightbend, and Kafka with Confluent’s Tim Berglund (Tim holds the record for most DubJUG appearances!).

Check out our upcoming speakers and presentations, or view past events.


Image SpeakerTop Ways to Deliver Java Code to the Cloud
2017-10-31
Our final October meetup is presented by Las Vegas-based Microsoft Developer Advocate Brian Benz, showing some of the easiest ways for Java Developers to deliver their code to the cloud using Linux command line tools. Brian is a Senior Developer Advocate at Microsoft, helping Java developers to get the most out of Azure. Before Joining Microsoft, he was a solution architect, consultant, developer, author and presenter at IBM, Deloitte, and other companies. You can follow him on twitter at [**@bbenz**](https://twitter.com/bbenz) . ##**Top Ways to Deliver Your Java Code to the Cloud** Brian will highlight the easiest ways for Java developers to deliver their code to the cloud and the best ways to reliably make updates and maintain production cloud code. The focus will be on real-world examples using Linux command line tools, open source tools such as Jenkins, and other free SDKs and tools available on GitHub. The examples, tools and demos that he shows will be applicable to any cloud platform, and all are available on GitHub. He will show Microsoft Azure running the samples - this is a technical talk that will focus on the code. . ##**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. **Doors Open 18:15 / Presentations 19:00** # **The Dublin Java User Group - Sponsor Messages** **Stackand.Co** enrich the professional lives of Java / Scala software professionals - with over 20 years experience in the Irish ICT market, they have helped many great people elevate their careers. Perhaps they can do the same for you working with companies [**like this one?**](https://recruit.zoho.com/recruit/ViewJob.na?digest=7NZDPrAwelZRR7pgbV1JQlg7fAI9NqhUofQ6ctM2P.8-&embedsource=Embed) Website: [**Stackand.Co**](http://stackand.co) / Twitter: [**StackanddotCo**](https://twitter.com/stackanddotco) . **Equifax Technology Ireland** is the Research and Development arm of global credit scoring organisation Equifax - it has recently opened a technology centre in the Bloodstone Building, Dublin 2. Now looking for developers! Website: [**Equifax.com**](https://equifax.com) / Twitter: [**Equifax**](https://twitter.com/equifax) . **GuruTeam's** 'crème de la crème' instructors deliver an enthusing and valuable learning experience, equipping attendees with the vital skills applicable to their careers, and bringing true business value to organisations they work with. Upcoming courses include CI with Jenkins, Apache Hadoop, Data Science & Big Data Analytics, Spring, GIT, Linux Foundation™, Angular 2, and OpenStack™ Website: [**GuruTeamIrl.com**](http://guruteamirl.com) / Twitter: [**GuruTeamIreland**](https://twitter.com/guruteamireland) . **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.” Website: [**Version1.com**](https://version1.com) / Twitter: [**Version1Tweets**](https://twitter.com/Version1Tweets) . **Teckro** are rethinking every element of clinical research - the people, the processes, the technologies used. By making it possible for all relevant information to be instantly accessible to every active member of a clinical trial and for the entire study teams to be connected effortlessly, they are broadening the possibilities of what can be achieved. This means drugs and treatments for the world’s most complex diseases are being developed quicker, and Teckro's long-term goal of continuously improving healthcare for everyone is realised. Teckro's partnership with DubJUG means that they can interact and exchange ideas with some of Dublin’s best developers. Website: [**Teckro.com**](http://Teckro.com) / Twitter: [**TeckroOfficial**](https://twitter.com/teckroofficial?lang=en) . **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! Website: [**Sonorplex.com**](https://sonorplex.com) / Twitter: [**Sonorplex**](https://twitter.com/sonorplex) . **tcube** provides city-centre co-working / hotdesks and fully serviced office space for ICT professionals and companies specifically. Their community knits so well together remote workers, contractors, city visitors and entrepreneurs / startups immediately become a part of a network of like-minded people who are able and willing to help one another. Offices in Fleet Street, Trinity Street and Grafton Street provide great locations with a huge benefit when it comes to hiring and retaining millennials. Website: [**tcubedublin.com**](https://tcubedublin.com) / Twitter: [**tcubeDublin**]( https://twitter.com/tcubedublin) . ##**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**](http://dubjug.org)

Image SpeakerMicroservices, Kubernetes, Docker and Java
2017-10-22
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** ##and # **Kubernetes for Java / Docker Developers** ##Doors Open 14:00 (afternoon session) / 18:15 (evening session) . 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.](https://developers.redhat.com) 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**](https://twitter.com/@yanaga) . ##**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](https://developers.redhat.com/promotions/migrating-to-microservice-databases/) ##**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! . ##**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** **Stackand.Co** enrich the professional lives of Java / Scala software professionals - with over 20 years experience in the Irish ICT market, they have helped many great people elevate their careers. Perhaps they can do the same for you working with companies [**like this one?**](https://recruit.zoho.com/recruit/ViewJob.na?digest=7NZDPrAwelZRR7pgbV1JQlg7fAI9NqhUofQ6ctM2P.8-&embedsource=Embed) Website: [**Stackand.Co**](http://stackand.co) / Twitter: [**StackanddotCo**](https://twitter.com/stackanddotco) . **Equifax Technology Ireland** is the Research and Development arm of global credit scoring organisation Equifax - it has recently opened a technology centre in the Bloodstone Building, Dublin 2. Now looking for developers! Website: [**Equifax.com**](https://equifax.com) / Twitter: [**Equifax**](https://twitter.com/equifax) . **GuruTeam's** 'crème de la crème' instructors deliver an enthusing and valuable learning experience, equipping attendees with the vital skills applicable to their careers, and bringing true business value to organisations they work with. Upcoming courses include CI with Jenkins, Apache Hadoop, Data Science & Big Data Analytics, Spring, GIT, Linux Foundation™, Angular 2, and OpenStack™ Website: [**GuruTeamIrl.com**](http://guruteamirl.com) / Twitter: [**GuruTeamIreland**](https://twitter.com/guruteamireland) . **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.” Website: [**Version1.com**](https://version1.com) / Twitter: [**Version1Tweets**](https://twitter.com/Version1Tweets) . **Teckro** are rethinking every element of clinical research - the people, the processes, the technologies used. By making it possible for all relevant information to be instantly accessible to every active member of a clinical trial and for the entire study teams to be connected effortlessly, they are broadening the possibilities of what can be achieved. This means drugs and treatments for the world’s most complex diseases are being developed quicker, and Teckro's long-term goal of continuously improving healthcare for everyone is realised. Teckro's partnership with DubJUG means that they can interact and exchange ideas with some of Dublin’s best developers. Website: [**Teckro.com**](http://Teckro.com) / Twitter: [**TeckroOfficial**](https://twitter.com/teckroofficial?lang=en) . **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! Website: [**Sonorplex.com**](https://sonorplex.com) / Twitter: [**Sonorplex**](https://twitter.com/sonorplex) . **tcube** provides city-centre co-working / hotdesks and fully serviced office space for ICT professionals and companies specifically. Their community knits so well together remote workers, contractors, city visitors and entrepreneurs / startups immediately become a part of a network of like-minded people who are able and willing to help one another. Offices in Fleet Street, Trinity Street and Grafton Street provide great locations with a huge benefit when it comes to hiring and retaining millennials. Website: [**tcubedublin.com**](https://tcubedublin.com) / Twitter: [**tcubeDublin**]( https://twitter.com/tcubedublin) . ##**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**](http://dubjug.org)

Image SpeakerApache Kafka: A Streaming Data Platform
2017-10-12
We are incredibly privileged to welcome back Tim Berglund, Director of Developer Experience at Confluent, the company that brings you the distributed messaging system and streaming data platform, Apache Kafka. ##Tim is Presenting.... #**Apache Kafka: A Streaming Data Platform** ##and # **Heraclitus, the Metaphysics of Change, and Streaming Data** ##Doors Open 18:15 / Doors Close and Presentation Begins 19:00 Tim can frequently be found at speaking at conferences in the United States and all over the world. He is the co-presenter of various O’Reilly training videos on topics ranging from Git to Distributed Systems, and is the author of Gradle Beyond the Basics. He is also the co-host of the http://devrelrad.io podcast, and lives in Littleton, CO, USA with the wife of his youth and their youngest child; the other two having mostly grown up. You can follow him on twitter at [**@tlberglund**](https://twitter.com/tlberglund). . ##**Apache Kafka: A Streaming Data Platform** When it comes time to choose a distributed messaging system, everyone knows the answer: Apache Kafka. But how about when you’re on the hook to choose a world-class, horizontally scalable stream data processing system? When you need not just publish and subscribe messaging, but also long-term storage, a flexible integration framework, and a means of deploying real-time stream processing applications at scale without having to integrate a number of different pieces of infrastructure yourself? The answer is still Apache Kafka. In this talk, we’ll make a rapid-fire review of the breadth of Kafka as a streaming data platform. We’ll look at its internal architecture, including how it partitions messaging workloads in a fault-tolerant way. We’ll learn how it provides message durability. We’ll look at its approach to pub/sub messaging. We’ll even take a peek at how Kafka Connect provides code-free, scalable, fault-tolerant integration, and how the Streams API provides a complete framework for computation over all the streaming data in your cluster . . **STOP PRESS.....** [**Check out the new Dublin Java User Group Website**](http://dubjug.org) . ##**Heraclitus, the Metaphysics of Change, and Streaming Data** Hailing from the Persian city of Ephesus in around 500 BC, the Greek philosopher Heraclitus is famous for his trenchant analysis of stream processing systems, saying “You never step into the same river twice.” Central to his philosophy was the idea that all things change constantly. His close readers also know him as the Weeping Philosopher—perhaps because dealing with constantly changing data at low latency is actually pretty hard. It doesn’t need to be that way. Almost as famous as Heraclitus is Apache Kafka, the de facto standard open-source distributed stream processing system. Many of us know Kafka’s architectural and pub/sub API particulars as well as we know the philosophy of Heraclitus, but that doesn’t mean we’re equipped to build the kind of real-time streaming data systems that the next generation of business requirements are doing to demand. Like Heraclitus was telling us 2,500 years ago: we need to get on board with streams. This talk is a thorough introduction to the Streams API, an important recent addition to Kafka that lets us build sophisticated stream processing systems that are as scalable and fault-tolerant as Kafka itself, and also happen to align quite well with the microservices sensibilities that are so common in contemporary architectural thinking. We’ll talk about how to deploy Streams applications and look at actual working code that will bring your thinking about streaming data systems from the ancient history of pub/sub paradigms into the current era. . # **The Dublin Java User Group - Sponsor Messages** **Stackand.Co** enrich the professional lives of Java / Scala software professionals - with over 20 years experience in the Irish ICT market, they have helped many great people elevate their careers. Perhaps they can do the same for you working with companies [**like this one?**](https://recruit.zoho.com/recruit/ViewJob.na?digest=7NZDPrAwelZRR7pgbV1JQlg7fAI9NqhUofQ6ctM2P.8-&embedsource=Embed) Website: [**Stackand.Co**](http://stackand.co) / Twitter: [**@StackanddotCo**](https://twitter.com/stackanddotco) . **Equifax Technology Ireland** is the Research and Development arm of global credit scoring organisation Equifax - it has recently opened a technology centre in the Bloodstone Building, Dublin 2. Now looking for developers! Website: [**Equifax.com**](https://equifax.com) / Twitter: [**@Equifax**](https://twitter.com/equifax) . **GuruTeam's** 'crème de la crème' instructors deliver an enthusing and valuable learning experience, equipping attendees with the vital skills applicable to their careers, and bringing true business value to organisations they work with. Upcoming courses include CI with Jenkins, Apache Hadoop, Data Science & Big Data Analytics, Spring, GIT, Linux Foundation™, Angular 2, and OpenStack™ Website: [**GuruTeamIrl.com**](http://guruteamirl.com) / Twitter: [**@GuruTeamIreland**](https://twitter.com/guruteamireland) . **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.” Website: [**Version1.com**](https://version1.com) / Twitter: [**@Version1Tweets**](https://twitter.com/Version1Tweets) . **Teckro** are rethinking every element of clinical research - the people, the processes, the technologies used. By making it possible for all relevant information to be instantly accessible to every active member of a clinical trial and for the entire study teams to be connected effortlessly, they are broadening the possibilities of what can be achieved. This means drugs and treatments for the world’s most complex diseases are being developed quicker, and Teckro's long-term goal of continuously improving healthcare for everyone is realised. Teckro's partnership with DubJUG means that they can interact and exchange ideas with some of Dublin’s best developers. Website: [**Teckro.com**](http://Teckro.com) / Twitter: [**@TeckroOfficial**](https://twitter.com/teckroofficial?lang=en) . **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! Website: [**Sonorplex.com**](https://sonorplex.com) / Twitter: [**@Sonorplex**](https://twitter.com/sonorplex) . **tcube** provides city-centre co-working / hotdesks and fully serviced office space for ICT professionals and companies specifically. Their community knits so well together remote workers, contractors, city visitors and entrepreneurs / startups immediately become a part of a network of like-minded people who are able and willing to help one another. Offices in Fleet Street, Trinity Street and Grafton Street provide great locations with a huge benefit when it comes to hiring and retaining millennials. Website: [**tcubedublin.com**](https://tcubedublin.com) / Twitter: [**@tcubeDublin**]( https://twitter.com/tcubedublin) . ##**BOOKING NOTES** The Dublin Java User Group meetups are designed for the benefit of developers and technology professionals to enhance knowledge. The organisers reserve the right to cancel the booking if the attendee is not aligned to the intended audience. 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 attendance fee you pay today will be refunded, in whole, providing you attend the event at the allocated time. If you do not attend the event for whatever reason or are ineligible to attend, the fee you have paid will be allocated to the running of future Dublin Java User Group events. Tickets are non-transferable. ##**MORE JAVA EVENTS** **Java developers who are interested in this meetup are also attending other Dublin Java User Group meetups - check them at** [**DubJUG.org**](http://dubjug.org)

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