Flink evening at WHUG
Stateful Stream Processing with Apache Flink
Kostas Kloudas gived us a high level presentation about Apache Flink. His presenatation aimed at covering the general idea and motivations of stateful stream processing. He showed how Flink enables it with its powerful set of state management features and programming APIs.
Looking for patterns with Flink CEP library
On presentation Dawid showed us that recently Flink Complex Event Processing (CEP) was under heavy development, introducing lots of improvements and new features.We discussed how newly introduced pattern categories like optionals, discarding and counting patterns or kleene closures expands the spectrum of possible use cases even further. Dawid presented how you can use Flink CEP library to specify and detect dynamic patterns in your real-time streaming applications and had describe mechanisms of underlying NFA(Non-finite automaton) that allowed those changes.