Speaker

Andrzej Grzesik

Andrzej Grzesik

I build distributed systems

London, United Kingdom

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ags likes distributed systems in all shapes and form. Coding since the age of 8, loves simplicity and continuous delivery. While he has written in many languages, he favours the JVM. Since "most software problems are people problems”, he stirs communities, organizes and speaks at conferences (proud to be a JavaONE Rockstar!). He is passionate about all things data, because science! In his spare time…cycling, photography and books. And he is a Java Champion!

Awards

Area of Expertise

  • Information & Communications Technology

Topics

  • java
  • Architecture
  • Microservice Architecture
  • Event Driven Architecture

Scooby RAM, where are you?

Java, the runtime, likes memory.
It is a fact well known to those who know it well, that subtle differences in code, can lead to drastic changes to applications memory and runtime profiles.
I’ll take you through the memory lane part of my work, and show how do I approach analysis, problems and troubleshooting. Tools, what information can they surface, and how to navigate back to the code.
Techniques and libraries, how do they affect what the application does. Feel invited if you believe troubleshooting memory in Java is “magic”, or “only tuning the GC can save us”.

Avoiding mistakes with events, one event at a time

Some say: Use events, events are great, all will be great and rosy. Then reality bites, and.. let's talk about strangers you'd rather avoid - mistakes to make when building using events. Things change, evolve, are not and overdelivered, old events start taking a lot of space, and someone is already using the name you wanted?! Expect: problems, symptoms, consequences, and some 'get-out-of' cards. Come for the experience others gained first-hand, so you know what to avoid.

Andrzej Grzesik

I build distributed systems

London, United Kingdom

Actions

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