Viktor Chesnokov "Asynchronous Messaging in Distributed Systems with Akka"
- 2. www.luxoft.com Forex Trading Challenges: High data refresh rate Strict requirements for order execution time Stateful algorithms
- 3. www.luxoft.com Trading related solutions: OpenHFT: chronicle family, quickfix LMAX: disruptor, nanofix, collections CoralBlocks
- 4. www.luxoft.com Akka is a toolkit for building highly concurrent, distributed, and resilient message-driven applications
- 5. www.luxoft.com Async network communication: NIO Netty Apache MINA CoralReactor
- 6. www.luxoft.com Akka I/O: The guiding design goal for this I/O implementation was to reach extreme scalability, make no compromises in providing an API correctly matching the underlying transport mechanism and to be fully event-driven, non-blocking and asynchronous. ● Support of different transports ● DeathWatch and Resource Management ● Write models (Ack, Nack) ● ByteString
- 7. www.luxoft.com Publisher/subscriber: Transport: HTTP + Stomp Alternatives: See queues.io ● Apache Kafka ● Rabbit MQ
- 8. www.luxoft.com Piggyback: Point-to-Point communication with acknowledgement Transport: TCP Alternatives: JMS implementations, etc
- 9. www.luxoft.com Full Duplex: Bi-directional communication. Requests from client to server with async response Transport: TCP Alternatives: gRPC
- 10. www.luxoft.com RPC: Yep, blocking requests with non-blocking Akka I/O. Because we can! Transport: TCP Alternatives: gRPC, Apache Thrift, Apache Avro
- 11. www.luxoft.com Serialization: Protostuff A serialization library with built-in support for forward-backward compatibility (schema evolution) and validation Kryo
- 12. www.luxoft.com Pros: Monitoring Simplified maintenance Improvement for business needs Cons: Testability Code is your documentation Learning curve